First-generation product — no historical cycle data to predict a successor
Best for: 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 →Reaching maturity, next model expected soon
Best for: Android and iPhone users who want a premium smartwatch experience — full offline maps, ECG, long battery, and a bright sapphire display — at a price well below Apple Watch or Galaxy Watch. A strong choice for runners, hikers, and health-focused users who want GPS map navigation without a subscription.
Full details →| Fitbit Air | Amazfit Balance | |
|---|---|---|
| Tier | Fitness Tracker | Smartwatch |
| Platform | iOS & Android | iOS & Android |
| Battery | 7 days | 21 days |
| Always-on display | ❌ | ✅ |
| GPS | ❌ | ✅ |
| Cellular | ❌ | ❌ |
| Released | May 7, 2026 | Jun 24, 2025 |
| Cycle length | — | 601 days |
| Cycle advice | good | neutral |
| Deals advice | good | neutral |
| 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.
21 days typical use and 33 hours GPS — combined with a scratch-resistant sapphire glass 1.5" AMOLED that outshines most watches at this price.
Precise dual-frequency L1+L5 GPS across six satellite systems, with downloadable offline topo maps and turn-by-turn navigation — rare at this price tier.
First Amazfit with official HYROX training and competition modes, 40,000-course golf maps, and SCUBA dive support — more sport breadth than any previous Balance.