WHOOP vs Oura Ring 5: The 3-Year Cost, Sleep vs Lifting, and Who Should Buy Which

Quick answer: Choose WHOOP (the WHOOP 5.0 on its One or Peak plan) if you lift, train hard or want a buzzing alarm; choose the Oura Ring 5 if sleep is the point and you'd rather not wear a strap. Money barely separates them: three years of WHOOP One costs $597, and an Oura Ring 5 with membership $609 (October 2026).^{1, 2, 3}

Spend an evening in the WHOOP and Oura subreddits and you'll notice the two camps aren't even arguing about the same thing. Ring people talk about sleep, cycle tracking and forgetting they have anything on. Strap people talk about strain, lifting and a battery that goes two weeks. And a surprising number of them end up wearing both.⁴

We built this from WHOOP's and Oura's support pages and stores (checked October 3, 2026), PCMag's side-by-side test, three peer-reviewed studies and who paid for them, and seven Reddit threads from 2026, paraphrased. Most comparisons ranking for this search still use the Oura Ring 4. This one uses the Oura Ring 5, which started shipping June 4, 2026, and WHOOP's plans as WHOOP lists them today.⁵

How Do WHOOP 5.0 and the Oura Ring 5 Compare at a Glance?

WHOOP 5.0 is a screenless sensor on a fabric strap that comes bundled with a yearly membership, and the Oura Ring 5 is a $399 titanium ring with a $69.99-a-year membership on top. Here's how the makers' own specs line up, checked October 3, 2026.^{1, 2, 3, 6, 7}

From WHOOP Support, WHOOP's launch announcement, the5krunner's spec sheet, Oura's store and Oura Support, checked October 3, 2026.^{8, 9, 10, 11, 12, 13, 14, 15, 16}

Left: WHOOP's three plans, with One and Peak on the 5.0 sensor and Life on the MG. Right: the Oura Ring 5 in Silver. Images: WHOOP, Oura.

The WHOOP listing sells a 12-month membership with the sensor and band, and you choose One, Peak or Life on the page. On Amazon, as listed on October 3, 2026, One comes with a CoreKnit band and a wired Basic Charger; Peak and Life include the Wireless PowerPack. On the Oura listing, pick your size and finish; Oura bills its membership separately.

How Much Do WHOOP and Oura Cost Over 1, 2 and 3 Years?

Over three years, WHOOP One costs $597 and an Oura Ring 5 in Silver or Black with membership costs $609, so the cheapest versions of each land $12 apart. WHOOP Peak ($717) and Life ($1,077) cost more, and a discounted Oura Ring 4 ($454) costs less. These are the prices WHOOP and Oura list, checked October 3, 2026, before tax.^{1, 2, 3, 15}

How we calculated it: WHOOP's yearly price is paid at the start of each 12-month term; WHOOP says monthly billing ($25, $30 or $40 a month) is only offered to members past their first 12 months, in some renewal cases. For Oura, it's the ring price plus $69.99 a year, first billed when the included month ends; paying $5.99 a month instead lands within a dollar of the same three-year total. Each column is what you've paid by the end of that year. WHOOP's 30-day free trial isn't counted. A Wireless PowerPack if your One kit doesn't include one, bands, extra chargers, an Oura charging case and sales tax aren't included, and Oura's Ring 4 price is a sale price.^{1, 3, 15, 16}

WHOOP is far cheaper in year one; by year three the cheapest plan and the Ring 5 are nearly even. Chart: Kudomax, from WHOOP and Oura list prices checked October 3, 2026.

The lines cross in year four. WHOOP One keeps costing $199 a year while the ring only adds $69.99, so a fourth year puts the Oura Ring 5 at about $679 against $796 for WHOOP One. That assumes the ring's battery holds up. Oura's warranty is one year, though owners describe Oura replacing fading rings after an in-app diagnostic; WHOOP replaces a defective sensor or battery pack for as long as you're a paying member.^{4, 14, 15} WHOOP also refreshes hardware through the membership: 4.0 members can still upgrade by extending their membership or paying a one-time fee: $49 for a 5.0 on Peak, or $79 for the MG, which moves you to Life and renews at $359 a year. WHOOP loosened that policy after complaints at launch.^{1, 17}

What happens if you stop paying?

WHOOP stops tracking: once your membership ends, it no longer collects, uploads or analyzes your data, though your history stays viewable.⁸ The Oura Ring 5 drops to three daily scores plus a data export, with detailed sleep, heart rate and temperature trends behind the fee, so you own the ring, but on its own it's three numbers a day.³

Which WHOOP plan should you compare with Oura?

WHOOP One is the cheapest plan and covers the core of what Oura's membership does: sleep, strain and recovery, Strength Trainer, VO2 max, AI coaching and hormonal insights. Feature for feature, though, Oura's membership also includes Daytime Stress and a Cardiovascular Age estimate, and WHOOP's closest equivalents, Stress Monitor and Healthspan with WHOOP Age, start at Peak ($239) along with Health Monitor. Matched that way, three years is $717 for Peak against $609 for the Oura Ring 5.^{1, 3} Life ($359) moves you to the WHOOP MG sensor for on-demand ECG and Blood Pressure Insights. WHOOP also lists irregular heart rhythm notifications on Life, but its regional page doesn't include the US yet (August 2026).^{1, 12}

Bought direct in the US, One comes with the 5.0 sensor, a SuperKnit band and the Wireless PowerPack, per WHOOP's pricing page; WHOOP's One listing on Amazon ships a CoreKnit band and a wired Basic Charger instead. If the wireless charger matters to you, check the box contents before you pay.¹ Our WHOOP 5.0 vs WHOOP MG comparison helps you pick a plan, and our breakdown of how much WHOOP costs covers the billing fine print.

WHOOP vs Oura for Sleep: Which Is Better?

For sleep, the Oura Ring 5 is the better pick for most people. It shows more of the overnight detail, a ring is easy to forget in bed, and its temperature sensor feeds cycle and illness insights. WHOOP is better if you want a nightly sleep target, bedtime coaching and a buzz on the wrist to wake you up.

PCMag's Andrew Gebhart wore an Oura Ring 4 and a WHOOP 5.0 and found both accurate for sleep and stress, but preferred how Oura lays out the details. WHOOP's sleep page leans on recommendations, sleep debt and bedtimes, and it doesn't show overnight respiration, skin temperature or average heart rate there, even though it tracks all three.¹⁸ WHOOP's Sleep Performance score blends how much you slept against your personal sleep need with consistency, efficiency and sleep stress, and counts 85% or more as optimal. Sleep Planner then suggests bed and wake times.¹⁹

The alarm is a real difference. WHOOP 5.0 and MG vibrate to wake you; the Oura Ring 5 has no vibration motor, so it can't.^{7, 10} In WHOOP's community forum, several 5.0 and MG owners, posting from May 2025 into January 2026, said the buzz is weaker than the 4.0's and they sleep through it, while others prefer the gentler alarm. In December 2025 a WHOOP moderator said the softer feel comes from design choices made to shrink the sensor, with no fix announced.²⁰ On the Oura side, the dedicated temperature sensor feeds period prediction and Symptom Radar, and the Readiness score pulls in body temperature, sleep balance and sleep regularity.^{2, 7, 21, 22}

Owners who've worn both mostly split the same way: the ring for sleep and early signs of getting sick, the strap for training; one who compared them overnight saw totals within about 3% of each other. Comfort cuts both ways: some can't sleep in a strap, and others sold the ring because their fingers swell at night.⁴

WHOOP vs Oura Accuracy: What Do the Studies Actually Show?

No peer-reviewed study has tested the WHOOP 5.0 or MG against the Oura Ring 5; the closest is one journalist's night in a sleep lab. Studies of older models put the two close on sleep staging, while one independent study found Oura closer to an ECG for overnight HRV, a result WHOOP's scientists dispute. Who paid for each study matters, so it's listed next to each finding:

• A night in a sleep lab, 2022 (WHOOP 3.0, Oura Gen2). Fifty-three adults slept in a lab wearing six devices. Against polysomnography, WHOOP and Oura agreed on the sleep stage for 60% and 61% of 30-second epochs, and on simple asleep-or-awake for 86% and 89%. WHOOP's heart rate and HRV were near-perfect (intraclass correlation 0.99) and Oura's HRV rated "good" (0.63), but WHOOP handed the researchers raw beat-to-beat data and 30-second sleep epochs, while Oura's numbers came from its app in 5-minute blocks. The Australian Institute of Sport funded the study. The authors' lab also receives research funding and equipment from WHOOP, which the paper says had no role in its design, conduct or reporting.²³
• Overnight HRV and resting heart rate, 2025 (WHOOP 4.0, Oura Gen3 and Ring 4). Thirteen adults, 536 nights, against an ECG chest strap. The Oura Ring 4 came closest on HRV (concordance 0.99, about 6% average error), and both Oura rings led on resting heart rate; WHOOP 4.0 was "moderate" (0.94 and about 8% for HRV). The U.S. Air Force Research Laboratory funded it, and the authors declared no competing interests.²⁴ WHOOP scientists replied that the comparison wasn't like for like, since WHOOP weights HRV toward your last slow-wave sleep phase. The authors answered that when they tried isolating that phase in-house, WHOOP's reported values matched it less well than an all-night average, and that the 4.0 still "graded very well."^{25, 26}
• Oura's own numbers. Oura advertises "95% sleep staging accuracy," and its footnote ties that to two-stage (sleep or wake) scoring. A 2024 study that Oura funded found the Gen3 ring's stage estimates didn't differ significantly from the lab's on average, though night-by-night agreement on deep and REM sleep was poor (ICC 0.32 and 0.27).^{2, 27} Oura is also facing a proposed class action over those accuracy claims, Surber v. Oura, filed August 20, 2026; Oura disputes it, moved to compel arbitration on September 10, 2026, and there was no ruling as of October 2, 2026.^{28, 29}
• One lab night with current models. For The Wall Street Journal, Nicole Nguyen wore an Oura Ring 5, a WHOOP MG, a Fitbit Air and an Apple Watch Series 11 for a night at Stanford Health Care's Sleep Medicine Center. Per 9to5Mac's summary, the Apple Watch matched the lab's 6 hours 52 minutes, the Fitbit Air came second and Oura third; the summary doesn't place the WHOOP for sleep. In her workouts, WHOOP kept up with the Apple Watch only when worn on the bicep, Oura faltered during high activity, and on a bumpy bike ride and a stroller walk only the Apple Watch stayed accurate.³⁰

Put together: for sleep timing and duration, both are close enough that the scoring formula matters more than the sensor. For workouts, WHOOP has the edge, especially on the bicep. For overnight HRV, Oura has the stronger independent evidence, on older hardware. One night or one study proves very little.

Why don't WHOOP Recovery and Oura Readiness agree?

WHOOP Recovery and Oura Readiness disagree because they're built differently. Recovery is a percentage: 67% or more is green, 34% to 66% yellow and 33% or less red. It leans on HRV and resting heart rate from your sleep, and WHOOP weights HRV toward slow-wave sleep and the later part of the night.³¹ Readiness is a 0-to-100 score with 85 and up labeled Optimal, built from nine contributors including body temperature, and Oura's HRV is the average of five-minute samples taken across the night.^{22, 32} A yellow WHOOP morning and a Good Oura morning can describe the same night. Owners split on which one matches how they feel: some lifters find WHOOP's recovery maddening, and others trust it more than Oura's.⁴ If yours is stuck low, our guide to what actually helps a low WHOOP Recovery score goes through the usual suspects.

WHOOP vs Oura for Lifting: Which Works Better in the Gym?

WHOOP is the better choice for lifting. Oura itself suggests taking the ring off for weightlifting, while WHOOP is built to stay on, can move to your bicep, and counts strength work toward its Strain score.^{33, 34}

And scratches from wear and tear aren't covered by Oura's warranty.³³ Lifters on r/ouraring describe the ring pressing into the finger on a barbell. Some take it off, some wear fingerless gloves or a cover, and a couple of Ring 5 owners say the slimmer ring bothers them less than older ones did. People wearing both also point out that Oura's Activity score gives little credit for a lifting session that WHOOP counts as real strain.⁴ Oura's workaround is Live Activity: with a membership you can start a workout in the Oura app and pair a chest strap like the Polar H10 for live heart rate, though steps from that session won't count if the ring isn't on.¹¹

WHOOP's Strain adds muscular load to cardiovascular load. For weightlifting, HIIT and powerlifting it estimates muscular strain automatically from the activity and its length, and if you log sets, reps and weights in Strength Trainer it measures the speed and intensity of each rep.³⁴ Placement matters. Across 19 workouts with WHOOP on the biceps (HYROX simulations, runs, swims and rides, no lifting sessions), the5krunner measured a 0.98 correlation with a reference heart rate source, and saw a clear drop on the wrist in HYROX and CrossFit sessions, where carries, pulls and wall balls disrupt the optical signal.¹⁰ Our guides to smart rings and lifting and Oura Ring 5 covers go deeper on keeping a ring in the gym.

Ring or Strap: Which Is Easier to Wear 24/7?

The ring is easier to forget about, and the strap is easier to never take off. Which one fits your life depends on these four things.

Charging and battery

WHOOP rates the 5.0 and MG at 14+ days, and PCMag got 16.5 days from a 5.0. With the Wireless PowerPack (included with Peak and Life, and with One bought direct in the US) it charges while you wear it and move around; the wired Basic Charger has to stay plugged into a cable while it charges.^{1, 6, 9, 18} The Oura Ring 5 lasts 6 to 9 days but comes off for about 80 minutes to charge, and it stores only up to three days of data, so open the app every couple of days.⁷

Sizing, swelling and weight loss

A strap adjusts. The Oura Ring 5 comes in whole sizes 6 to 13 only, and Oura says to wear the sizing kit for 24 hours, including a night, and pick the smaller size if you're between two (our Oura Ring 5 sizing guide has the details).³⁵ If you're losing weight, plan on buying another ring at some point; an r/ouraring commenter who dropped about 80 pounds went from a size 14 to a 13.⁴

Water, hands and the kitchen

Both handle showers and swimming. WHOOP is rated IP68 to 10 meters for two hours, the ring to 100 meters, and neither is meant for diving.^{6, 7} For its titanium rings, Oura suggests taking the ring off for rigorous handwashing and when handling pots and pans; its ceramic-ring tips add taking it off before washing hands or doing dishes.³³

Looks, and the watch you already wear

PCMag found both comfortable but gave the ring the edge on looks, since WHOOP's strap reads as gym gear unless you buy a dressier band.¹⁸ If you already wear a watch you love, the ring is the easier add. Plenty of people also run WHOOP on the other wrist or the bicep next to a watch.⁴

Oura Ring 5 or Ring 4: Which Oura Is the Better Deal Against WHOOP?

On price, the Ring 4. Oura's store lists it at $244.30 in Silver and Stealth, down from $349, which makes three years with membership $454 against $609 for the Ring 5 (October 3, 2026).¹⁵ The Ring 4 is wider (7.9 mm against 6.09 mm), comes in sizes 4 to 15, stores up to a week of data and lasts 5 to 8 days; the Ring 5 is slimmer and rated for 6 to 9.^{7, 36} Membership and features such as Blood Pressure Signals work on both, but the sizing kits aren't interchangeable.^{13, 35} If a bulky ring is what's pushing you toward WHOOP, try the Ring 5. Our Oura Ring 5 review covers the newer ring in depth.

What Are the Downsides of WHOOP and Oura?

WHOOP's biggest downside is that it only works while you pay. Oura's is a $399 ring that still needs a membership and doesn't love the gym.^{3, 8, 33}

What is the WHOOP controversy?

Two stories come up. In May 2025, WHOOP first asked existing members to extend their membership or pay $49 or $79 for the new 5.0 or MG hardware, then widened free upgrades after complaints and said an old blog post had wrongly promised free upgrades after six months.¹⁷ In July 2025, the FDA sent WHOOP a warning letter saying Blood Pressure Insights was being marketed as an unauthorized medical device; WHOOP called that overreach.³⁷ After the FDA rewrote its general wellness guidance in January 2026 and WHOOP changed the feature and its labeling, the agency issued a closeout letter on June 17, 2026.³⁸

What is the downside of WHOOP?

• You pay every year. When the membership ends, so does the tracking.⁸
• No screen and no GPS in the sensor. The app can record distance, but you can't glance at your pace or heart rate.⁶
• Wrist accuracy drops in grip-heavy training unless you move it to the bicep.¹⁰
• Heart features cost extra. On-demand ECG and Blood Pressure Insights need Life at $359 a year, and Life's background AFib notifications aren't available in the US yet.^{1, 12}
• Support and scoring complaints. Owners grumble about customer service, and some never warm to the Recovery score.⁴

Why are people getting rid of their Oura rings?

Owners mostly cite the membership on top of a $399 ring, fingers that swell or shrink, the ring getting in the way at the gym, and batteries that fade after a year or two. In a September r/ouraring thread about a ring that no longer lasted two days, several owners said Oura replaced theirs after an in-app diagnostic, and one was on a third ring in under two years.⁴ Our Fitbit Air vs Oura Ring comparison digs further into why owners leave and what the lawsuit over Oura's sleep claims alleges.

WHOOP or Oura: Which Should You Buy?

Buy WHOOP if training is the point; buy the Oura Ring 5 if sleep is. Start at the top of this list and stop at the first line that fits you:

1. You lift, do CrossFit or HYROX, or grip a bar most days → WHOOP, worn on the bicep for training.
2. You want a silent alarm that won't wake a partner → WHOOP, though heavy sleepers should keep a phone alarm as backup. The Oura Ring 5 can't vibrate.
3. You're losing weight or your fingers swell → WHOOP. A strap adjusts; a ring means buying another.
4. You want an on-demand ECG → WHOOP Life with the MG ($359 a year); in the US it doesn't include background AFib alerts yet. Oura lists no AFib feature as of October 2026.^{12, 13} For background AFib alerts without a subscription, see our Fitbit Air vs WHOOP comparison.
5. You already wear a watch you like → Oura Ring 5.
6. Sleep, cycle tracking or early illness signals are why you're buying → Oura Ring 5.
7. You'll keep it longer than three years → Oura Ring 5. It costs less than WHOOP One from year four on.
8. You want the smallest bill this year → WHOOP One at $199, or an Oura Ring 4 on sale.
9. You won't pay a subscription at all → Neither. See below.

Still deciding between form factors in general? Our smart ring vs fitness band guide steps back, and our screenless fitness tracker rankings cover the other bands.

What If You Don't Want to Pay a Subscription at All?

Then skip both. Our best WHOOP alternatives without a subscription covers screenless bands that keep sleep and recovery data free, and our best smart rings with no subscription ranks rings like the RingConn Gen 3 that don't charge a monthly fee. Our Ultrahuman Ring PRO review covers Ultrahuman's $479 ring, which US Customs cleared in March 2026. If you're set on one of these two, Black Friday is November 27 and WHOOP took $40 off Peak and $60 off Life last year; our fitness tracker Black Friday guide and Oura Ring Black Friday guide track both.³⁹

WHOOP vs Oura FAQ

Sources

1. WHOOP Support: Membership Pricing (last published May 28, 2026; read October 3, 2026). WHOOP One $199 a year in the US, Mexico, Canada, the EU and the UK with the 5.0 sensor, Obsidian SuperKnit band and Wireless PowerPack (elsewhere $149 the first year with a certified pre-owned 4.0); Peak $239 with the 5.0; Life $359 with the 5.0 Medical Grade (MG) sensor; features by plan; a 24-month option for new members; monthly billing ($25, $30, $40) only for members past their 12-month commitment, in select renewal cases; 4.0 upgrade options (extend the membership, or a $49 or $79 fee). WHOOP's main site blocked our automated check; the support page was read in a browser. WHOOP's One listing on Amazon (checked October 3, 2026) ships a CoreKnit band and wired Basic Charger instead; Peak and Life include the Wireless PowerPack. The $79 upgrade fee is the route to Life with the MG.
2. Oura: Oura Ring 5 store page, checked October 3, 2026. $399 Silver and Black, $499 Gold, Deep Rose, Stealth and Brushed Silver; 6.09 mm wide, 2.28 mm thick, from 2 grams; 6 to 9 days of battery; 100 m water resistance; the "95% Sleep Staging Accuracy" claim, whose footnote cites 2-stage (sleep and wake) comparisons with polysomnography; women's cycle insights.
3. Oura Support: Oura Membership (updated September 8, 2026). $5.99 a month or $69.99 a year in the US; one included month for new members; membership features including Daytime Stress, Resilience and Heart Health (Cardiovascular Age, Cardio Capacity); what you see without a membership (three daily scores, ring battery, profile, settings, Explore); data download without a membership.
4. Reddit owner threads (paraphrased, not quoted): r/ouraring: Thinking of switching from WHOOP to Oura Ring + Polar H10 for gym training? (August 9, 2026: lifting with a ring, Readiness vs Recovery, Oura's Activity score and weight training, a size 14 to 13 move after weight loss, Oura plus chest strap setups); r/whoop: Whoop vs Oura ring for sleep and recovery monitoring (August 9 to 11: ring for sleep and illness warnings vs strap for activity, overnight totals within about 3%, swollen fingers at night, customer service complaints); r/whoop: Anyone else running Whoop alongside something else? (August 14 to 17: WHOOP plus a watch, bicep wear, double-counted steps in Apple Health, HRV that never matches); r/ouraring: Powerlifter (May 2: discomfort on a barbell, gloves and covers, an Oura support reply on removing the ring for lifting); r/ouraring: Is Oura ring 5 better for weightlifting? (June 4 to 5: the thinner Ring 5 in the gym); r/FitnessTrackers: Helio Strap vs Panther vs Oura Ring 4 vs Whoop 5.0 (May 13 to 14: WHOOP on the bicep vs the wrist, Oura weak on workouts, complaints about WHOOP workout heart rate); r/ouraring: 18 Months In - Battery Shot (September 3 to 4: battery fade at 12 to 30 months, replacements after in-app diagnostics, an owner on a third ring in under 24 months). Read through the PullPush archive on October 3, 2026.
5. TechCrunch: Oura unveils its Ring 5 with a thinner, lighter design starting at $399 (Aisha Malik, May 28, 2026). Pre-orders from May 28 and shipping June 4; pricing by finish; 6 to 9 days of battery.
6. WHOOP Support: WHOOP Basics (last published August 13, 2026). WHOOP 5.0 measures 34.7 x 24 x 10.6 mm and weighs 26.5 g; wear on the wrist or WHOOP Body locations; IP68 (10 m for 2 hours) for 4.0, 5.0 and MG, not for diving; rinse after sunscreen or chlorine; LeatherLuxe isn't water-resistant; the sensor has no built-in GPS; Healthspan on Peak and Life; Heart Screener and Blood Pressure Insights on Life (MG) only; Blood Pressure Insights "is not a medical device."
7. Oura Support: Discover Oura Ring 5 (updated July 27, 2026). Sizes 6 to 13; two tri-LEDs, two photodetectors, a digital temperature sensor and an accelerometer, with no vibration motor listed; 6 to 9 days of battery; about 80 minutes to charge; 100 m water resistance, sauna and water sports but not diving; up to three days of on-ring storage; Ring 5 vs Ring 4 table (6.09 mm vs 7.9 mm wide, three days vs a week of storage, sizes 6 to 13 vs 4 to 15).
8. WHOOP Support: Canceling Your Membership (last published June 5, 2026). After a membership ends, "WHOOP will no longer collect, upload, or analyze your biometric data"; past data stays viewable; 30-day return window; pausing for up to three months.
9. WHOOP press release, May 8, 2025, as reprinted by Fitt Insider: WHOOP Unveils WHOOP 5.0 and WHOOP MG. Three plans at $199, $239 and $359 a year; "14+ days per charge across WHOOP 5.0 and MG hardware"; seven percent smaller; Healthspan, an FDA-cleared ECG Heart Screener on the MG, Blood Pressure Insights; Muscular Strain and 145+ activities; WHOOP Body and Any-Wear garments.
10. the5krunner: Whoop 5.0 and MG spec sheet, read October 3, 2026. Screenless "with haptic feedback for alarms and notifications"; no on-device GPS; bicep sleeve sold separately; across 19 workouts on the biceps (HYROX simulations, running, open water swimming and cycling), a 0.98 correlation with a reference heart rate source, and a clear accuracy drop on the wrist in HYROX and CrossFit.
11. Oura Support: Live Activity Tracking (updated August 26, 2026). Real-time workout recording with an active membership on Gen3 or later; pace and distance with phone GPS; live heart rate from third-party monitors such as the Polar H10, Garmin HRM-Dual, Powerbeats Pro 2 and AirPods Pro 3; steps aren't added if the ring isn't worn.
12. WHOOP Support: Regional Feature Availability (last published August 20, 2026; read October 3, 2026). Irregular Heart Rhythm Notifications are listed for Canada, the UK, much of Europe, Australia, New Zealand and several Gulf states, but not the United States; the on-demand ECG is listed for the United States, Guam and Puerto Rico, among others.
13. Oura Support: Heart Health Hub (updated August 12, 2026). Gen3 or later with an active membership; Blood Pressure Signals for members in the US, India and the UAE, which notifies you only if it detects a pattern and shows no blood pressure reading. No AFib or irregular-rhythm feature is listed.
14. WHOOP Support: Replacing WHOOP Products (last published February 5, 2026). Lifetime Warranty replacement of a defective sensor or battery pack (4.0, 5.0, MG) if bought from WHOOP or an approved partner and the membership is active; cosmetic damage, loss and bands aren't covered.
15. Oura: Oura Store, checked October 3, 2026. Ring 4 at $244.30 in Silver and Stealth (list $349) and $279.30 in Gold (list $399); Ring 5 from $399; limited 1-year warranty with extended options; returns within 30 days; free trial month for new members.
16. WHOOP Support: Free Trial FAQ (last published September 4, 2026). A 30-day Peak trial with a WHOOP 5.0 and basic charger or a WHOOP 4.0 and PowerPack; doing nothing converts it to a 12-month Peak membership at $239; a $110 restocking fee if you cancel without returning the hardware.
17. TechCrunch: Fitness tracker Whoop faces unhappy customers over upgrade policy (Anthony Ha, May 11, 2025). The original 12-month extension or $49/$79 upgrade fee; free upgrades for members with more than 12 months left after complaints; WHOOP's statement that a blog post promising free upgrades after six months was wrong.
18. PCMag: Oura Ring 4 vs. Whoop 5.0: One of These Wearables Is Clearly Better for Most People (Andrew Gebhart, updated April 22, 2026; read on PCMag's Middle East edition because the US page blocked our check). Both comfortable; Oura better-looking; WHOOP 5.0 lasted 16.5 days and the Ring 4 just over 7; both accurate for sleep and stress, with Oura presenting the details more helpfully; WHOOP's sleep page omits overnight respiration, skin temperature and average heart rate; WHOOP wins on supported activities.
19. WHOOP Support: WHOOP Sleep (last published August 6, 2025). Sleep Performance combines sufficiency, consistency, efficiency and sleep stress, with 85% or more as optimal; Sleep Planner bed and wake time recommendations.
20. WHOOP Community: Haptic alarm strength (May 2025 to January 2026). Owners on whether the fixed-strength haptic alarm on the 5.0 and MG is strong enough, with views on both sides; a WHOOP moderator's December 19, 2025 reply that the difference from the 4.0 comes from design decisions for a smaller device, with no specific update to share. Paraphrased.
21. Oura Support: Symptom Radar (updated July 20, 2026). Requires an active membership and at least seven nights of sleep data in the past 14 days; uses body temperature, respiratory rate, resting heart rate, HRV and inactive time.
22. Oura Support: Readiness Contributors (updated July 14, 2026). Nine contributors, including resting heart rate, HRV balance, body temperature, sleep balance and sleep regularity; 85 to 100 Optimal, 70 to 84 Good, 60 to 69 Fair, 0 to 59 Pay attention.
23. Miller DJ, Sargent C, Roach GD. A Validation of Six Wearable Devices for Estimating Sleep, Heart Rate and Heart Rate Variability in Healthy Adults. Sensors 2022;22(16):6317 (PMID 36016077). 53 adults, one lab night; two-state agreement 86% for WHOOP 3.0 and 89% for Oura Gen2, multi-state 60% and 61%; WHOOP heart rate and HRV ICC 0.99, Oura HRV ICC 0.63; WHOOP supplied R-R intervals and 30-second sleep epochs, while Oura data came from its app in 5-minute epochs. Funded by the Australian Institute of Sport; the authors' lab receives research funding and equipment from WHOOP Inc., which the paper says was not involved in the design, conduct or reporting.
24. Dial MB, et al. Validation of nocturnal resting heart rate and heart rate variability in consumer wearables. Physiological Reports 2025;13(16):e70527 (PMID 40834291). 13 adults, 536 nights, against an ECG reference; HRV concordance 0.99 for Oura Gen4 (MAPE 5.96%), 0.97 for Oura Gen3, 0.94 for WHOOP 4.0 (8.17%); resting heart rate 0.98 and 0.97 for the Oura rings and 0.91 for WHOOP. Funded by the Air Force Research Laboratory; no competing interests declared.
25. Letter by WHOOP scientists: Accurate comparison of wearables requires contextual equivalence. Physiological Reports 2025;13(23):e70710 (December 13, 2025). Argues HRV and resting heart rate should be compared over the same sleep window and weighting each device uses; the authors are paid by WHOOP, Inc.
26. Authors' reply: Contextual equivalence for accurate comparison of wearables requires transparency. Physiological Reports 2025;13(23):e70706 (December 15, 2025). In-house attempts to isolate WHOOP's last slow-wave sleep phase agreed less with WHOOP's reported values than an all-night average; the WHOOP 4.0 "graded very well"; a call for manufacturers to publish how metrics are computed.
27. Robbins R, Weaver MD, Sullivan JP, et al. Accuracy of Three Commercial Wearable Devices for Sleep Tracking in Healthy Adults. Sensors 2024;24(20):6532 (PMID 39460013). Oura Ring Gen3, Fitbit Sense 2 and Apple Watch Series 8 against polysomnography in 35 adults; for the Oura ring, intraclass correlation with the lab was 0.32 for deep sleep and 0.27 for REM. Funded by Oura Ring Inc.; the lead author disclosed membership of Oura's Medical Advisory Board.
28. TechCrunch: Oura faces lawsuit accusing it of misleading consumers about sleep tracking accuracy (Aisha Malik, August 21, 2026). The proposed class action and Oura's response that its sleep staging "has been validated and compared favorably in multiple studies against polysomnography."
29. PacerMonitor: Surber v. Oura, Inc. et al., No. 3:26-cv-08686, U.S. District Court for the Northern District of California, filed August 20, 2026; defendants' motion to compel arbitration filed September 10, 2026; no ruling on the claims or on class certification as of our October 2, 2026 check (the docket rate-limited our October 3 check).
30. 9to5Mac: Here's how Apple Watch Series 11 stacks up against Oura, Fitbit, and Whoop, per WSJ (Zac Hall, June 7, 2026), summarizing Nicole Nguyen's Wall Street Journal test of an Apple Watch Series 11, Oura Ring 5, Fitbit Air and WHOOP MG, including a night at Stanford Health Care's Sleep Medicine Center (Apple Watch first, "The Fitbit Air was a close second, followed by Oura") and activity tests ("The Whoop could match it, provided I wore the sensor on my bicep"; "the Fitbit Air and Oura faltered" during high activity; on "a bumpy outdoor bike ride and a chill walk with a stroller, only my Apple Watch remained relatively accurate"). We read 9to5Mac's summary, not the WSJ article itself.
31. WHOOP Support: WHOOP Recovery (last published September 11, 2025). Green 67% or above, yellow 34% to 66%, red 33% or below; inputs including HRV, resting heart rate, respiratory rate, sleep, skin temperature and SpO2; HRV as a weighted average across the night with more weight on slow-wave sleep and later stages, compared with a 30-day baseline.
32. Oura Support: Heart Rate Variability (updated October 1, 2026). HRV is measured only during sleep; the value shown is the mean of five-minute samples taken across the night.
33. Oura Support: Caring for Your Oura Product (updated September 21, 2026). Consider removing the ring for high-friction activities such as weightlifting and when handling pots and pans; remove it for rigorous handwashing; for ceramic rings, remove it before washing hands or doing dishes; wear-and-tear scratches aren't covered by the warranty.
34. WHOOP Support: WHOOP Strain (last published March 6, 2026). Strain on a 0 to 21 scale from cardiovascular and muscular load; automatic muscular strain estimates for weightlifting, functional fitness, HIIT and powerlifting based on activity type and duration; Strength Trainer logging measures each rep's speed and intensity.
35. Oura Support: How to Choose the Right Oura Ring Size (updated August 10, 2026). Ring 5 kit sizes 6 to 13 and Ring 4 kit sizes 4 to 15; sizing differs between generations; whole sizes only; wear the sizer for 24 hours; choose the smaller size when between two.
36. Oura: Oura Ring 4 store page, checked October 3, 2026. Battery of 5 to 8 days depending on size and lifestyle; 7.90 mm wide; water resistant to 100 m.
37. CNBC: Whoop says FDA is 'overstepping its authority' with warning about blood pressure feature (July 15, 2025). The FDA's warning letter over Blood Pressure Insights and WHOOP's response.
38. ArentFox Schiff: Not FDA's Whoop-ing Boy: How a Warning Letter Became a Wellness Playbook (law firm client alert, September 24, 2026). The July 2025 warning letter; the FDA's revised General Wellness guidance of January 6, 2026; WHOOP's product and labeling changes; the FDA's June 17, 2026 closeout letter.
39. Mashable: Whoop just announced all the deals coming to its Black Friday sale on Nov. 20 (Samantha Mangino, November 2025). The November 20 to December 2, 2025 sale with $60 off WHOOP MG (Life) plans and $40 off WHOOP 5.0 (Peak) plans.

Matched For You

Going with the Oura Ring 5 but still lifting? These two fix the most common gym complaint:

Polar H10 Chest Strap

Oura's Live Activity tracking pairs with the H10 for live heart rate, so the ring can stay in your bag while you lift. It's also a solid reference strap if you wear WHOOP. More in our gym heart rate monitor guide.

Check today's price →

Clear Oura Ring 5 Cover (3-pack)

For owners who'd rather not take the ring off for every workout. The sleeve covers the outside only, so the sensors still touch your skin, and it comes in Ring 5 sizes. Our Oura Ring 5 covers guide compares the options.

Check today's price →

Paid links