# Fitbit Charge 6 vs Ultrahuman Ring AIR: specs and price compared

A sourced, side-by-side comparison of the Fitbit Charge 6 (Fitbit (Google)) and Ultrahuman Ring AIR (Ultrahuman) among fitness trackers. Fitbit Charge 6 is the cheaper of the two at $159.95.

## Side by side

| Spec | Fitbit Charge 6 | Ultrahuman Ring AIR |
| --- | --- | --- |
| US price | $159.95 | $349 |
| Brand | Fitbit (Google) | Ultrahuman |
| Released | 2023-10 | 2023-09 |
| Form factor | band | ring |
| Display | AMOLED 1.04in | — |
| Battery days | 7 | 6 |
| Gps | Yes | No |
| Spo2 | Yes | Yes |
| Ecg | Yes | No |
| Subscription required | No | No |
| Water resistance (m) | 50 | 100 |

## Key differences

- Form factor: Fitbit Charge 6 band vs Ultrahuman Ring AIR ring
- Battery days: Fitbit Charge 6 7 vs Ultrahuman Ring AIR 6
- Gps: Fitbit Charge 6 Yes vs Ultrahuman Ring AIR No
- Ecg: Fitbit Charge 6 Yes vs Ultrahuman Ring AIR No
- Water resistance (m): Fitbit Charge 6 50 vs Ultrahuman Ring AIR 100

## What reviewers say

**Fitbit Charge 6** — Three whitelisted testers (DC Rainmaker, TechRadar, Tom's Guide) field-tested the exact Charge 6. All praise sleep tracking and improved heart-rate accuracy at a low price, but the built-in GPS is the recurring flaw: reliable only when the strap is worn loose, which then hurts HR. Battery landed near six days. (3 sourced reviews.)

**Ultrahuman Ring AIR** — Two whitelisted testers (TechRadar, Tom's Guide) wore the Ring Air for a month and 60 days respectively, both benchmarking it against Apple Watch and Oura. Both praise its featherweight comfort, detailed data and no subscription; both flag easy scratching. Verdicts converge: a capable, data-heavy ring for enthusiasts. No RTINGS lab data exists. (2 sourced reviews.)

## Sources

- Fitbit Charge 6: https://www.androidauthority.com/fitbit-charge-6-3220162/ (androidauthority.com, verified 2026-06-15)
- Ultrahuman Ring AIR: https://www.androidcentral.com/wearables/ultrahuman-ring-air-review (androidcentral.com, verified 2026-06-15)

Canonical: https://frontdeskreview.com/gear/fitness-trackers/fitbit-charge-6-vs-ultrahuman-ring-air/
Cite: Per The Front Desk Review, Fitbit Charge 6 ($159.95) vs Ultrahuman Ring AIR ($349) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/fitness-trackers/fitbit-charge-6-vs-ultrahuman-ring-air/
License: CC BY 4.0.