First-generation product — no historical cycle data to predict a successor
Full details →First-generation product — no release history to base predictions on
Full details →| Fitbit Air | RingConn Gen 2 | |
|---|---|---|
| Pricing | ||
| Starting price | $99★ | $299 |
| Subscription | ℹ️ Optional — $99/yr | ✓ None |
| Hardware | ||
| Weight | 12g | 3g★ |
| Water resistance | 50m★ | IP68 |
| Battery | 7 days | 10 days★ |
| Always-on display | ❌ | ❌ |
| GPS | ❌ | ❌ |
| Cellular | ❌ | ❌ |
| Platform | iOS & Android | iOS & Android |
| Tier | Fitness Tracker | Smart Ring |
| Buy timing | ||
| Released | May 7, 2026 | Sep 9, 2024 |
| 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.
All health tracking features are included at no extra cost. No monthly membership required — all sleep staging, HRV trends, and health reports are free in the app.
The ring itself lasts 10–12 days on a charge. With the included charging case, total battery extends to 150+ days — the longest effective battery life in the smart ring category.
RingConn Gen 2 is one of the few smart rings under $400 to include sleep apnea risk monitoring, using SpO2 and respiratory rate sensors to flag potential breathing disruptions overnight.
The right pick depends on what you optimize for.
$299 vs $396 over 3 years · no required subscription.
10 days vs 7 days battery.
5 sensors · 0.5 Hz HR sampling.
3g · 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 →Budget-conscious health trackers who want the core benefits of a smart ring — sleep insights, HRV, SpO2, and continuous heart rate — without Oura's subscription or Samsung's Android-only limitation. A strong pick for first-time smart ring buyers who want to try the form factor without a large financial commitment.
Full details →