# Amazfit Helio Ring vs Luna Ring Gen 2: specs and price compared

A sourced, side-by-side comparison of the Amazfit Helio Ring (Amazfit) and Luna Ring Gen 2 (Noise) among smart rings. Amazfit Helio Ring is the cheaper of the two at $149.99.

## Side by side

| Spec | Amazfit Helio Ring | Luna Ring Gen 2 |
| --- | --- | --- |
| US price | $149.99 | $300 |
| Brand | Amazfit | Noise |
| Released | 2024-05 | 2025-07 |
| Material | Titanium alloy outer, resin inner | Fighter jet-grade titanium with PVD coating and non-allergenic inner molding |
| Weight (g) | 3.65-3.82 | 3-5 |
| Battery days | 4 | 6 |
| Spo2 | Yes | Yes |
| Temperature sensor | Yes | Yes |
| Ecg | No | No |
| Subscription required | No | No |
| Water resistance (m) | 100 | 50 |

## Key differences

- Material: Amazfit Helio Ring Titanium alloy outer, resin inner vs Luna Ring Gen 2 Fighter jet-grade titanium with PVD coating and non-allergenic inner molding
- Weight (g): Amazfit Helio Ring 3.65-3.82 vs Luna Ring Gen 2 3-5
- Battery days: Amazfit Helio Ring 4 vs Luna Ring Gen 2 6
- Water resistance (m): Amazfit Helio Ring 100 vs Luna Ring Gen 2 50

## Sources

- Amazfit Helio Ring: https://us.amazfit.com/products/amazfit-helio-ring (us.amazfit.com, verified 2026-06-15)
- Luna Ring Gen 2: https://www.lunazone.com/products/luna-smart-ring-gen-2 (lunazone.com, verified 2026-06-15)

Canonical: https://frontdeskreview.com/gear/smart-rings/amazfit-helio-ring-vs-luna-ring-gen-2/
Cite: Per The Front Desk Review, Amazfit Helio Ring ($149.99) vs Luna Ring Gen 2 ($300) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/smart-rings/amazfit-helio-ring-vs-luna-ring-gen-2/
License: CC BY 4.0.