Best Smart Rings · head-to-head

Ultrahuman Ring AIR vs Movano Evie Ring

A sourced, side-by-side comparison. Movano Evie Ring is cheaper at $269. Every spec and price links to its source.

Which is better: the Ultrahuman Ring AIR or Movano Evie Ring?

On the specs we track, they're closely matched. The Movano Evie Ring is the cheaper at $269.

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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Ultrahuman Ring AIR Movano Evie Ring
US price $349 $269
BrandUltrahumanMovano Health
Released2023-062023-11
Material Titanium outer shell with tungsten carbide carbon coating; medical-grade hypoallergenic inner layer Liquidmetal (zirconium-based amorphous alloy) with titanium PVD coating
Weight (g) 2.4-3.6 3.2-3.7
Battery days 6 4
Spo2 Yes Yes
Temperature sensor Yes Yes
Ecg No No
Subscription required No No
Water resistance (m) 100 1

Sources — Ultrahuman Ring AIR: ultrahuman.com (verified 2026-06-15). Movano Evie Ring: eviering.com (verified 2026-06-15).

What's the difference between the Ultrahuman Ring AIR and Movano Evie Ring?

Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.

  • Material: Ultrahuman Ring AIR Titanium outer shell with tungsten carbide carbon coating; medical-grade hypoallergenic inner layer vs Movano Evie Ring Liquidmetal (zirconium-based amorphous alloy) with titanium PVD coating
  • Weight (g): Ultrahuman Ring AIR 2.4-3.6 vs Movano Evie Ring 3.2-3.7
  • Battery days: Ultrahuman Ring AIR 6 vs Movano Evie Ring 4
  • Water resistance (m): Ultrahuman Ring AIR 100 vs Movano Evie Ring 1

What reviewers say

Sourced tester consensus for each — the "what people who used it think" layer, not just specs.

Ultrahuman Ring AIR

Two whitelisted testers (TechRadar, Digital Trends) each wore the Ring Air hands-on for a full month in August 2023 and agree it is exceptionally light, comfortable to wear 24/7, accurate against wrist wearables in side-by-side testing, and free of any subscription. Both also flag that it scratches within weeks of gym/daily wear and packs in a lot of data to comb through, though they split on how usable the app is. (2 sourced reviews, 2 lab-tested.)

Praised: Exceptionally light and comfortable to wear 24/7, including overnight; Health/sleep/heart-rate data tracks accurately vs wrist wearables in side-by-side testing; No monthly subscription fee, unlike Oura and Whoop.

Flagged: Titanium coating scratches within a few weeks of gym/daily wear; A lot of data to comb through; the app is data-dense; Expensive at $349.

Movano Evie Ring

No sourced tester review yet.

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