First-generation product — no historical cycle data to predict a successor
Full details →Overdue for a refresh — no successor announced yet. Prices should be at their lowest
Full details →| Fitbit Air | Fitbit Sense | |
|---|---|---|
| Pricing | ||
| Starting price | $99★ | $199 |
| Subscription | ℹ️ Optional — $99/yr | ℹ️ Optional — $79/yr |
| Hardware | ||
| Weight | 12g★ | 26g |
| Water resistance | 50m | 50m |
| Battery | 7 days★ | 6 days |
| Always-on display | ❌ | ❌ |
| GPS | ❌ | ✅★ |
| Cellular | ❌ | ❌ |
| Platform | iOS & Android | iOS & Android |
| Tier | Fitness Tracker | Smartwatch |
| Buy timing | ||
| Released | May 7, 2026 | Sep 28, 2022 |
| Cycle advice | good★ | bad |
| Deals advice | good | 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.
The EDA (electrodermal activity) sensor tracks physiological stress throughout the day — a feature absent from most competitors at this price.
Comes with Fitbit Premium for advanced sleep analysis, HRV trends, stress management scores, and personalised health insights.
Unlike Apple Watch or Galaxy Watch, Sense 2 pairs with any smartphone and runs 6 days before charging.
The right pick depends on what you optimize for.
$396 vs $436 over 3 years · no required subscription.
7 days vs 6 days battery.
6 sensors.
12g · no required subscription.
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 →Health-conscious users on any platform who want continuous stress monitoring (EDA sensor), ECG, and Fitbit's deep wellness coaching — without paying Galaxy Watch or Apple Watch prices. Particularly strong for iPhone users who want serious health tracking at under $250.
Full details →