The six side by side
The two WHOOP rows are the memberships that include a strap: Peak at $239 a year and Life at $359 a year, which is the only tier with WHOOP MG12. The three-year figures for WHOOP assume the fee renews at that price, which WHOOP’s membership page doesn’t state1. WHOOP’s terms say memberships renew at the then-current price3. Optional plans appear in the three-year column only where marked.
Prices are US prices before tax, checked on Nov 6, 2026 (WHOOP Peak’s on Oct 13 and WHOOP MG’s on Oct 26). None was a sale price. ‘Not stated’ means the maker didn’t publish it. For the Garmin CIRQA against the Fitbit Air in more depth, see WHOOP Peak vs Garmin CIRQA vs Google Fitbit Air.
| Band | Best for | US price | Price and where to buy | Required fee | Three-year cost | Battery | Warranty | Returns |
|---|---|---|---|---|---|---|---|---|
| WHOOP Peak (WHOOP 5.0) | Paying yearly for WHOOP’s scores and warranty | $239 a year, with the strap included1 | $239 a yearUS price, checked Check price at WHOOP for WHOOP Peak (WHOOP 5.0) | The whole price. WHOOP One, the entry tier, is $199 a year1 | $717 if it renews at $2391 | 14+ days. About 2 hours for a full charge14 | Lifetime with device replacement, while the membership stays active1 | Cancel and return within 30 days of receipt for a refund minus shipping1 |
| WHOOP MG (Life) | An FDA-cleared ECG on a screen-free strap | $359 a year, with the strap included2 | $359 a yearUS price, checked Check price at WHOOP for WHOOP MG | The whole price2 | $1,077 if it renews at $35923 | 14+ days. About 2 hours for a full charge4 | Lifetime with device replacement, while the membership is active and paid up3 | 30 days from receipt for a refund of the first membership fee, less return shipping3 |
| Amazfit Helio Strap | A $99.99 band with no required fee | $99.997 | $99.99US price, checked Check price at Amazfit for Amazfit Helio Strap | None required, according to Amazfit7 | $99.99, or $309.96 with Zepp Aura’s annual plan79 | Up to 10 days, according to Amazfit7 | One year, for purchases from Amazfit’s US store8 | 30 days with an authorization, and you pay return shipping. Orders in November and December can be returned through Jan 31 or for 45 days, whichever is longer8 |
| Google Fitbit Air | Google’s app on a $99.99 band | $99.99, with 3 months of Google Health Premium19 | $99.99US price, checked Check price at Google for Google Fitbit Air | None required. Premium is $9.99 a month after the trial1921 | $99.99, or $396.99 with a $99 yearly Premium plan, per TechCrunch1924 | Up to 7 days. About 90 minutes for a full charge1920 | Not stated for the Air. Older Fitbit terms give one year23 | Within 15 days of receipt at the Google Store, in the original box22 |
| Garmin CIRQA (Black) | Garmin’s training scores with no required fee | $199.9914 | $199.99US price, checked Check price at Garmin for Garmin CIRQA Smart Band | None required, according to Garmin. Connect+ is optional1418 | $199.99, or $409.96 with Connect+ on the annual plan1418 | Up to 10 days14 | One year from purchase16 | Within 30 days of receipt on Garmin.com orders17 |
| Polar Loop (Night Black, SoftWeave) | Recovery scores with no locked features | $199.9911 | $199.99US price, checked Check price at Polar for Polar Loop | None. Polar says no monthly fees and no locked features11 | $199.9911 | Up to 8 days11 | Two years on the device, not the SoftWeave bands12 | Within 30 days, unused and in the original packaging13 |
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Which WHOOP alternative suits you?
Each suits a different need, and this isn’t a ranking. All four are screen-free bands you read in a phone app, as WHOOP is47111420.
- The least money with a 10-day battery: Amazfit Helio Strap. It’s $99.99 with no required fee, wears on the wrist, or on the upper arm with the separate Helio Armband, and Amazfit rates it at up to 10 days a charge7. The trade-off: no charging cable in the box, a 15% restocking fee can apply to a return missing parts, and one reviewer found its readiness insights shallower than WHOOP’s7810.
- The same price with Google’s app: Google Fitbit Air. It’s $99.99, and activity and sleep tracking stay free1921. It’s a 12 g band rated at up to 7 days a charge, and it needs Android 11 or iOS 16.4 and later1920. The trade-off: Google’s coach costs $9.99 a month after 3 months, returns close after 15 days, and Google doesn’t state the Air’s warranty2123.
- Training scores from Garmin: Garmin CIRQA. It’s $199.99 with no required fee, and Garmin rates it at up to 10 days a charge14. It adds training readiness, VO2 max and recovery time to sleep and HRV14. The trade-off: guided workouts need Connect+, and GPS comes from your phone141518.
- Recovery scores with nothing behind a paywall: Polar Loop. It’s $199.99, and Polar says there are no monthly fees and no locked features11. It has the longest device guarantee here, two years12. The trade-off: it has no GPS of its own, lists no skin temperature or blood oxygen sensing, and can’t send heart rate to other devices11.
- Staying with WHOOP: Peak or MG. Peak’s $239 a year includes Healthspan, Pace of Aging, a Stress Monitor and Health Monitor alerts1. MG is the only one with an FDA-cleared ECG, and it needs the $359-a-year Life tier25. The trade-off: $717 or $1,077 over three years, and the lifetime warranty ends with the membership13.
What do you give up by leaving WHOOP?
The table below shows what each band lists. You give up WHOOP’s own feature set, not just its fee. Peak’s Healthspan, Pace of Aging, Stress Monitor and Health Monitor alerts have no named counterpart in the four bands’ listings, and WHOOP says Healthspan is for wellness purposes only1. TechRadar’s reviewer called the Helio Strap a good lower-cost alternative to a WHOOP band, with readiness insights that aren’t as deep10. If you are choosing between WHOOP’s own tiers, see WHOOP Peak vs WHOOP MG.
Phone support differs. Google lists Android 11 or iOS 16.4 and later for Fitbit Air1920. Garmin’s manual lists no minimum versions15. Amazfit’s page lists iOS 15.0 or later and Android 7.0 or later7. We have no minimum phone version on record for Polar or WHOOP, so check each app’s store page before you buy.
If you’d rather wear a watch than a band, Fitbit Charge 6, Garmin Vivoactive 6 and Galaxy Watch9 are compared on subscription, battery and phone fit. For Google’s two trackers head to head, see Fitbit Air vs Charge 6.
| Band | Sensors and display | What an optional plan adds | FDA status |
|---|---|---|---|
| WHOOP Peak | Sensor types not named. No display or built-in GPS14 | Peak is the plan. WHOOP One, the entry tier, is $199 a year and Life is $359 a year1 | WHOOP describes no Peak feature as FDA-cleared1 |
| WHOOP MG | Light sensors and an ECG-conductive clasp. No display or built-in GPS226 | Life adds Heart Screener with ECG, on-demand AFib detection and Blood Pressure Insights2 | The ECG was cleared on April 4, 2025 (K243236) for adults 22 and older5. WHOOP calls Blood Pressure Insights a beta wellness feature and not a medical device26. The FDA warned WHOOP in July 2025 about marketing it without clearance, and closed the letter in June 2026 without clearing it2728 |
| Amazfit Helio Strap | Optical heart rate sensor, accelerometer, gyroscope and temperature sensor. No display7 | Zepp Aura adds unlimited AI messages and sleep reports, at $11.99 a month or $69.99 a year after a 14-day trial9 | No clearance claimed. The FDA database lists none for Zepp, Huami or Amazfit725 |
| Google Fitbit Air | Optical heart rate, red and infrared blood oxygen sensors, a temperature sensor, accelerometer and gyroscope. No display20 | Premium adds the Gemini-built coach, adaptive fitness plans and detailed sleep insights21 | Google says it looks for signs of AFib and lists Irregular Rhythm Notifications. Its FDA status is unknown, as the Air pages don’t mention clearance1920 |
| Garmin CIRQA | Wrist heart rate, Pulse Ox and skin temperature. No display. GPS comes from your phone1415 | Connect+ adds AI insights, nutrition logging and expanded LiveTrack features, at $6.99 a month or $69.99 a year1518 | No clearance claim. Garmin’s manual says CIRQA isn’t a medical device15 |
| Polar Loop | Precision Prime optical heart rate sensor. No display and no built-in GPS11 | None. Optional free trials of Strava, TrainingPeaks and Clue11 | The page mentions no FDA clearance. Polar says Loop isn’t for medical purposes11 |
What the accuracy claims don’t settle
We found no peer-reviewed accuracy study of the Helio Strap, Polar Loop or Garmin CIRQA, or of the WHOOP 5.0 or Fitbit Air. A 2024 systematic review of earlier WHOOP straps found 62% sleep-stage agreement (kappa 0.46) against polysomnography6. It was published before WHOOP 5.0 launched6.
What exists for the cheaper bands is a reviewer’s experience. TechRadar’s reviewer saw the Helio Strap overestimate heart rate by around 10 bpm against a chest strap on some long runs and read close in other workouts10. That is one reviewer, not a validation study. Our evidence review covers what independent studies show about sleep staging, resting heart rate and HRV across devices.
The FDA clearance for WHOOP’s ECG covers that feature alone. Its study had about 540 subjects, and the feature called 11% of recordings inconclusive5. It doesn’t extend to the sleep, recovery or stress scores, and none of the four alternatives claims clearance for any feature in the pages we checked711151920. Google lists AFib-related alerts for the Air, and its FDA status is unknown.
Sources
- WHOOP Membership WHOOP · manufacturer
- Join WHOOP WHOOP · manufacturer
- Terms of Use WHOOP · manufacturer
- How Long Does WHOOP Battery Last? WHOOP (The Locker) · manufacturer
- 510(k) clearance letter and summary K243236: WHOOP ECG Feature US Food and Drug Administration, 2025 · regulator
- Accuracy of Fitbit Charge 4, Garmin Vivosmart 4, and WHOOP Versus Polysomnography: Systematic Review JMIR mHealth and uHealth, 2024 · systematic review
- Helio Strap Amazfit · manufacturer
- Amazfit Warranty & Return Policy Amazfit · manufacturer
- Zepp Aura Amazfit · manufacturer
- Amazfit Helio Strap review TechRadar, 2026 · news
- POLAR Loop: Screen-Free Wearable Health Band & Fitness Tracker Polar · manufacturer
- Warranty | Polar USA Polar · manufacturer
- Return policy | Polar USA Polar · manufacturer
- Meet CIRQA Smart Band: The screen-free health and fitness tracker from Garmin Garmin Newsroom, 2026 · manufacturer
- CIRQA Smart Band Owner's Manual Garmin · manufacturer
- Consumer Limited Warranty Garmin · manufacturer
- Shipping, Returns & Refunds Garmin · manufacturer
- Elevate your health and fitness goals with Garmin Connect+ Garmin Newsroom, 2025 · manufacturer
- Google Fitbit Air Google Store · manufacturer
- Google Fitbit Air tech specs Google Store · manufacturer
- Google Health Premium with Google Health Coach Google Store · manufacturer
- Return your Google Store purchase Google Store Help · manufacturer
- Fitbit Limited Warranty Google · manufacturer
- Google's $9.99-per-month AI health coach launches May 19 TechCrunch, 2026 · news
- FDA 510(k) database search (openFDA): applicants Zepp, Huami and Amazfit US Food and Drug Administration · regulator · data file
- WHOOP Heart Health | Stay Connected to Your Heart WHOOP · manufacturer
- Warning letter: WHOOP, Inc. (MARCS-CMS 709755), July 14, 2025 US Food and Drug Administration, 2025 · regulator
- Close-out letter: WHOOP, Inc. (MARCS-CMS 709755), June 17, 2026 US Food and Drug Administration, 2026 · regulator
How this was written. Written from the sources listed above, checked . It is general information, not medical advice. Talk to a clinician before acting on anything here if you have a health condition or take medication.
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