# Circular Ring 2 vs Amazfit Helio Ring: specs and price compared

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

## Side by side

| Spec | Circular Ring 2 | Amazfit Helio Ring |
| --- | --- | --- |
| US price | $379 | $149.99 |
| Brand | Circular | Amazfit |
| Released | 2025-08 | 2024-05 |
| Material | Titanium (PVD coating on premium finishes) | Titanium alloy outer, resin inner |
| Weight (g) | 3 | 3.65-3.82 |
| Battery days | 8 | 4 |
| Spo2 | Yes | Yes |
| Temperature sensor | Yes | Yes |
| Ecg | Yes | No |
| Subscription required | No | No |
| Water resistance (m) | — | 100 |

## Key differences

- Material: Circular Ring 2 Titanium (PVD coating on premium finishes) vs Amazfit Helio Ring Titanium alloy outer, resin inner
- Weight (g): Circular Ring 2 3 vs Amazfit Helio Ring 3.65-3.82
- Battery days: Circular Ring 2 8 vs Amazfit Helio Ring 4
- Ecg: Circular Ring 2 Yes vs Amazfit Helio Ring No

## Sources

- Circular Ring 2: https://shop.circular.xyz/products/circular-ring-2 (shop.circular.xyz, verified 2026-06-15)
- Amazfit Helio Ring: https://us.amazfit.com/products/amazfit-helio-ring (us.amazfit.com, verified 2026-06-15)

Canonical: https://frontdeskreview.com/gear/smart-rings/circular-ring-2-vs-amazfit-helio-ring/
Cite: Per The Front Desk Review, Circular Ring 2 ($379) vs Amazfit Helio Ring ($149.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/smart-rings/circular-ring-2-vs-amazfit-helio-ring/
License: CC BY 4.0.