First-generation product — no historical cycle data to predict a successor
Full details →First-generation product — no historical cycle data to predict a successor
Full details →| Fitbit Air | Garmin CIRQA | |
|---|---|---|
| Pricing | ||
| Starting price | $99★ | $199 |
| Subscription | ℹ️ Optional — $99/yr | ℹ️ Optional — $70/yr |
| Hardware | ||
| Weight | 12g★ | 21g |
| Water resistance | 50m | 5ATM |
| Battery | 7 days | 10 days★ |
| Always-on display | ❌ | ❌ |
| GPS | ❌ | ❌ |
| Cellular | ❌ | ❌ |
| Platform | iOS & Android | iOS & Android |
| Tier | Fitness Tracker | Fitness Tracker |
| Buy timing | ||
| Released | May 26, 2026 | Jul 24, 2026 |
| Cycle advice | good | good |
| Deals advice | great★ | good |
| Next model | — | — |
Unlike WHOOP, there is no mandatory membership — pay $99 once and use Fitbit Air with the free Google Health app. Google Health Premium ($9.99/month) is optional.
Continuous heart rate, SpO2, HRV, and skin temperature tracking plus background FDA-certified AFib detection, in a 12g pebble designed to be worn and forgotten.
A week between charges, with a 5-minute top-up delivering a full day of use — significantly less downtime than WHOOP's slide-on charging system.
Body Battery, sleep coach, training readiness and VO2 max — the metrics Garmin watch owners rely on — in a screen-free band with no mandatory membership.
Swap between a wrist band and an upper-arm band, which many users find more comfortable during sleep and more accurate during workouts.
Up to 10 days between charges, longer than the Fitbit Air's 7 days. A full charge takes up to 90 minutes on Garmin's proprietary charger.
The right pick depends on what you optimize for.
$396 vs $409 over 3 years.
10 days vs 7 days battery.
5 sensors · 0.5 Hz HR sampling.
12g.
Health-focused users who want passive, 24/7 biometric tracking without a screen on their wrist. Particularly strong for those drawn to WHOOP but put off by the subscription model — the Fitbit Air delivers comparable core health data for $99 outright. Works with both iOS and Android.
Full details →People who want WHOOP-style 24/7 recovery and sleep tracking without a monthly fee, especially existing Garmin users or anyone who wants Garmin's Body Battery and training readiness metrics without wearing a watch.
Full details →