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 →Early in release cycle
Best for: Users who want Garmin's best health analytics and sports tracking on a stylish AMOLED watch for everyday wear. Works equally well for Android and iPhone. The Venu 4 adds ECG and a flashlight to the formula — ideal for anyone who wants a capable lifestyle watch with genuine health monitoring depth.
Full details →| Fitbit Air | Garmin Venu | |
|---|---|---|
| Tier | Fitness Tracker | Smartwatch |
| Platform | iOS & Android | iOS & Android |
| Battery | 7 days | 12 days |
| Always-on display | ❌ | ✅ |
| GPS | ❌ | ✅ |
| Cellular | ❌ | ❌ |
| Released | May 7, 2026 | Sep 22, 2025 |
| Cycle length | — | 746 days |
| Cycle advice | good | good |
| 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.
The Venu 4 adds on-demand ECG (a first for the Venu line) alongside Garmin's signature Body Battery energy score — combining health monitoring and daily readiness in one watch.
A white/red LED flashlight and a speaker/microphone for hands-free calling — practical features that set the Venu 4 apart from the Venu 3.
SatIQ multi-band GPS for precise tracking in cities and trails, with up to 12 days of battery life in the 45mm model — significantly more than any comparable smartwatch.