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Fitness band

WHOOP Peak (WHOOP 5.0)

Peak membership at $239 a year, including the WHOOP 5.0 device, Wireless PowerPack and SuperKnit band

$239 a yearUS price, checked Oct 13, 2026

Display-free recovery strap sold only as a yearly membership

Check price at WHOOP Full review →

Our screen-free band pick

Garmin CIRQA Smart Band

Black, part 010-04675-00, wrist band (a retailer lists this part as L/XL)

$199.99US price, checked Oct 13, 2026

Garmin's screen-free band with no required subscription and up to 10 days per charge

Check price at Garmin Full review →

Fitness band

Google Fitbit Air

Classic edition with the Obsidian band, including 3 months of Google Health Premium

$99.99US price, checked Oct 13, 2026

Screen-free $99.99 fitness band with up to 7 days of battery

Check price at Google Full review →

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Criterion	WHOOP Peak (WHOOP 5.0)	Garmin CIRQA Smart Band	Google Fitbit Air
US price	$239 a yearChecked Oct 13, 2026 · Price details in the review	$199.99Checked Oct 13, 2026 · Price details in the review	$99.99Checked Oct 13, 2026 · Price details in the review
Three-year ownership estimate	$717 Incomplete known subtotal. Not included: energy use.	$199.99 Incomplete known subtotal. Not included: energy use.	$99.99 Incomplete known subtotal. Not included: energy use.
Choose if	Anyone who wants daily recovery and sleep scores plus WHOOP Age and health alerts, and would rather pay $239 a year than buy a device outright.	You want Garmin's sleep, HRV and recovery tracking without a screen or a monthly fee.	You want sleep, heart rate and blood oxygen tracking for about $100 from a 12 g band with no screen.
Main trade-off	It costs $717 over three years with no hardware-only option listed, has no display, and leaves ECG and blood pressure features to the $359-a-year Life tier.	Guided workouts need a paid Connect+ plan, and there's no GPS without your phone.	You read everything in the app, and Google's coach costs extra after the 3 free months.
Key specifications	Membership cost: $239 a year for Peak. One is $199 a year and Life is $359 a year. WHOOP shows only annual pricing. Battery and charging: 14+ days per charge. A full charge of the strap or the PowerPack takes about 2 hours. The Wireless PowerPack slides onto the strap and charges it while you wear it. WHOOP says a fully charged PowerPack holds enough power for up to 30 days to fully charge the sensor. Display and GPS: No display or built-in GPS. You view your data in the WHOOP app. Sensors: WHOOP says its sensors capture data 26 times per second. The pages checked don't name the sensor types. Peak-tier features: Healthspan and Pace of Aging (WHOOP Age), a real-time Stress Monitor, and Health Monitor with health alerts. Peak also includes all One features: Recovery, Sleep and Strain scores, steps and activity, haptic alarm, women's hormonal insights, VO2 max and heart rate zones, and Natural Cycles integration. In the box: WHOOP 5.0 device, Wireless PowerPack and SuperKnit band. One members get a wired Basic Charger and CoreKnit band instead.	Battery life: Up to 10 days from a built-in lithium-ion battery, according to Garmin. Charging takes up to 90 minutes. All-day Pulse Ox and heart rate broadcasting shorten battery life. TechRadar got about a week per charge with three to four workouts a week. Health tracking: Wrist heart rate, Pulse Ox, skin temperature, stress and Body Battery. Sleep tracking covers stages, sleep score, HRV, respiration and naps. Cycle and pregnancy tracking includes past ovulation estimates from skin temperature during sleep. Garmin says that feature isn't meant to help you conceive or avoid pregnancy. Training: Automatic activity detection, plus more than 80 activities you can start by hand. Garmin lists training readiness, HRV status, VO2 max, training status, workout benefit and recovery time. GPS: None built in. Connected GPS uses your iPhone or Android phone's GPS for outdoor walks, runs and rides. LiveTrack shares your location in real time and needs a phone with a data plan. Subscription: None required, according to Garmin. Connect+ adds AI insights, nutrition logging and LiveTrack+. Guided workouts need it, and the manual says some activities may too. It costs $6.99 a month or $69.99 a year. Garmin offered a 30-day free trial when Connect+ launched in 2025. Display and controls: No screen. A single side button starts a favorite activity and snoozes alarms. An LED shows pairing, charging and low battery. The band vibrates for alarms, heart rate alerts and low battery. Water rating: 5 ATM, which Garmin says withstands pressure equal to a depth of 50 m. Swim is in the activity list, but the manual doesn't say what it records in the water. Wear: Wrist or upper arm. Garmin says the wrist gives the best performance. The upper arm band is sold separately at REI. It's 36.0 cm long in S/M and 50.0 cm in L/XL.	Battery and charging: Up to 7 days per charge. A full charge takes about 90 minutes, and 5 minutes gives about a day. Google suggests charging every few days to keep tracking without gaps. It doesn't publish the test conditions behind the 7-day figure. Sensors: Optical heart rate monitor, 3-axis accelerometer and gyroscope, red and infrared sensors for blood oxygen, a device temperature sensor and a vibration motor Health tracking: 24/7 heart rate, plus resting heart rate, heart rate variability, breathing rate, blood oxygen and skin temperature variation. It counts steps, Active Zone Minutes, distance and calories, and gives a Sleep Score with sleep stages, a Readiness score and Cardio Load. Google says it looks for signs of AFib while you're still or sleeping. It lists high and low heart rate alerts and Irregular Rhythm Notifications as Health Guardian features. Display: Google's spec sheet lists no display. You see your data in the Google Health app. Water resistance: Water resistant to 50 m. Google advises drying the band fully after it gets wet or sweaty. Subscription: 3 months of Google Health Premium are included. After that, Premium starts at $9.99, and Google doesn't say whether that's per month or per year. Premium adds a personal coach built with Gemini, adaptive fitness plans, detailed sleep insights, daily guidance and advanced Health Guardian features. It also adds nutrition and cycle-aware coaching, a content library, and workout and mindfulness videos. Activity and sleep tracking, Readiness, Cardio Load and the standard Health Guardian alerts are listed as free app features. If you already pay for Premium, you have to cancel it before the included months can start. You must be over 18 to enroll in Premium. Compatibility: Android 11 or later, or iOS 16.4 or later, with a Google Account and the Google Health app. Connects over Bluetooth 5.0. Google says it's intended for ages 13 and up.
Exact variant	Peak membership at $239 a year, including the WHOOP 5.0 device, Wireless PowerPack and SuperKnit band	Black, part 010-04675-00, wrist band (a retailer lists this part as L/XL)	Classic edition with the Obsidian band, including 3 months of Google Health Premium
Dimensions	WHOOP doesn't state dimensions or weight on the pages checked. Its launch release says 5.0 and MG pack more technology into a form factor seven percent smaller, without giving measurements.	Garmin lists the wrist band at 24.5 cm (9.6 in) long in S/M and 28.5 cm (11.2 in) in L/XL. Both sizes are 2.4 cm wide and 0.2 cm thick. REI says the S/M fits 120–200 mm wrists and the L/XL fits 145–240 mm. Garmin's US page labels part 010-04675-00 only as Black, but Ascent Outdoors lists it as the L/XL. Garmin doesn't give the module's size or weight. TechRadar says CIRQA weighs 21 g but doesn't say whether that includes the band.	The tracker is about 34.9 mm long, 17 mm wide and 8.3 mm high (1.4 × 0.7 × 0.3 in). It weighs 5.2 g on its own and 12 g with the band. Google lists the textile and polyurethane band as one size for 130–210 mm wrists.
Installation	No installation. The strap pairs with the WHOOP app, and WHOOP says you can wear it on multiple locations across the body. Your membership starts when you pair and activate the device, or 30 days after the strap ships.	No installation. You pair it with the Garmin Connect app on your phone. Garmin names compatible iPhone and Android phones for connected GPS, but the manual lists no minimum phone or operating system versions. It charges from a USB port with Garmin's proprietary cable. Garmin doesn't mention a power adapter.	No installation. You need a smartphone, a Google Account and the Google Health app, which runs on Android 11 or later and iOS 16.4 or later. It syncs over Bluetooth 5.0 at up to 30 ft. Syncing also needs an internet connection and location permission on your phone. In the box are the tracker, a wristband and a USB-C charging cable.
Materials	Peak comes with a SuperKnit band. The membership comparison table calls it Obsidian, and the page's FAQ calls it Onyx. WHOOP doesn't say what the band fabric or device housing is made of on the pages checked.	The band is fabric, according to Garmin. The module takes 24 mm fabric bands and doesn't work with third-party bands. Garmin doesn't say what the fabric or the module is made of. The band can go in the washing machine on a gentle cycle at up to 40°C (104°F). The module can't.	Google says the housing is recycled polycarbonate and PBT plastic. The band is textile with a stainless steel buckle, and the Obsidian band's buckle is matte black. The packaging is 100% plastic-free.
Warranty	Lifetime warranty with device replacement, as long as you bought the membership directly through WHOOP and it stays active.	Not confirmed. The owner's manual doesn't mention a warranty, and neither does REI's listing. Garmin's US Consumer Limited Warranty page loads its terms with JavaScript, so they couldn't be read. Check that page before buying.	Google's Fitbit Limited Warranty page says Fitbit devices bought on or after July 11, 2023 are covered through the Google Hardware Warranty Center. That center has an option for Fitbit hardware bought since that date, but it doesn't name Fitbit Air or give its warranty length. So the Air's US warranty isn't confirmed. The older Fitbit terms cover new products for one year from purchase. They exclude accidental damage, consumables such as batteries, normal wear and cosmetic damage such as scratches.
Returns	You can cancel the membership and return the device for any reason within 30 days of receipt. You get a full refund minus the cost of shipping. The membership page doesn't give terms for canceling after 30 days.	Not confirmed. Garmin's Shipping, Returns & Refunds page loads its terms with JavaScript, so the return window couldn't be read. REI's listing links to its return policy without stating it. Check the policy of whoever you buy from.	Google Store Help says most items can be returned within 15 days of the day you receive them. Before sending it back, you reset the device to factory settings. For a refund, it goes back in its original box with all accessories and documentation. The Fitbit Air page advertises free shipping and returns. The help page doesn't mention restocking fees.
Unresolved questions	Device dimensions, weight and water resistance rating Sensor types and published accuracy for WHOOP 5.0 specifically Renewal price, auto-renewal terms and what the strap does after the membership ends How WHOOP Age and Pace of Aging are calculated, and whether anyone has independently validated them Shipping cost and cancellation terms after the 30-day return window FDA status of Peak features beyond WHOOP's own statements (FDA databases weren't checked)	Garmin's own confirmation of which size part 010-04675-00 is, and whether the box includes more than one band The module's size and weight from Garmin Warranty length and return window Charger power draw Minimum phone and operating system versions for Garmin Connect What the fabric band is made of Which real-time workout data stays free, since the manual still lists some under Connect+ Peer-reviewed accuracy data for CIRQA's heart rate, HRV and sleep tracking	The US warranty length for Fitbit Air, since Google's Hardware Warranty Center doesn't name it Premium's billing period, and whether the free months roll into a paid plan Which Health Guardian features count as advanced and need Premium Whether FDA's 2022 clearance of Fitbit Irregular Rhythm Notifications, which lists older devices, covers Fitbit Air Independent accuracy data for Fitbit Air's heart rate, blood oxygen and sleep tracking Test conditions behind the 7-day battery figure Charger power draw and battery lifespan

These comparisons use published specifications, not head-to-head tests. Prices and terms are dated. Unknown costs are not zero. Check the exact variant before you buy.