Amazfit
Amazfit Helio Ring
$149.99Cheaper
Released 2024-05
Best Smart Rings · head-to-head
Amazfit Helio Ring vs Luna Ring Gen 2
A sourced, side-by-side comparison. Amazfit Helio Ring is cheaper at $149.99. Every spec and price links to its source.
Noise
Luna Ring Gen 2
$300
Released 2025-07
Which is better: the Amazfit Helio Ring or Luna Ring Gen 2?
On the specs we track, they're closely matched. The Amazfit Helio Ring is the cheaper at $149.99.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| 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 |
Sources — Amazfit Helio Ring: us.amazfit.com (verified 2026-06-15). Luna Ring Gen 2: lunazone.com (verified 2026-06-15).
What's the difference between the Amazfit Helio Ring and Luna Ring Gen 2?
Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.
- 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