# Ultrahuman Ring AIR vs Xiaomi Smart Band 9: specs and price compared

A sourced, side-by-side comparison of the Ultrahuman Ring AIR (Ultrahuman) and Xiaomi Smart Band 9 (Xiaomi) among fitness trackers.

## Side by side

| Spec | Ultrahuman Ring AIR | Xiaomi Smart Band 9 |
| --- | --- | --- |
| US price | $349 | not published |
| Brand | Ultrahuman | Xiaomi |
| Released | 2023-09 | — |
| Form factor | ring | band |
| Display | — | AMOLED 1.62in |
| Battery days | 6 | 21 |
| Gps | No | No |
| Spo2 | Yes | Yes |
| Ecg | No | No |
| Subscription required | No | No |
| Water resistance (m) | 100 | 50 |

## Key differences

- Form factor: Ultrahuman Ring AIR ring vs Xiaomi Smart Band 9 band
- Battery days: Ultrahuman Ring AIR 6 vs Xiaomi Smart Band 9 21
- Water resistance (m): Ultrahuman Ring AIR 100 vs Xiaomi Smart Band 9 50

## What reviewers say

**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

- Ultrahuman Ring AIR: https://www.androidcentral.com/wearables/ultrahuman-ring-air-review (androidcentral.com, verified 2026-06-15)
- Xiaomi Smart Band 9: https://www.mi.com/global/product/xiaomi-smart-band-9/specs/ (mi.com, verified 2026-07-08)

Canonical: https://frontdeskreview.com/gear/fitness-trackers/ultrahuman-ring-air-vs-xiaomi-smart-band-9/
Cite: Per The Front Desk Review, Ultrahuman Ring AIR ($349) vs Xiaomi Smart Band 9 (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/fitness-trackers/ultrahuman-ring-air-vs-xiaomi-smart-band-9/
License: CC BY 4.0.