| Colmi R02 / R06 | Oura Ring 4 | |
|---|---|---|
| Score | 60/100 (Good) | 48/100 (Fair) |
| Official API ⚡ | No API (0/25) | Open API (25/25) |
| Data export ⚡ | Local raw files (25/25) | Full account export (15/25) |
| Gadgetbridge / open firmware ⚡ | Supported (20/20) | Not supported (0/20) |
| Home Assistant ⚡ | None (0/15) | Community (HACS) (8/15) |
| Subscription ⚡ | Not needed (15/15) | Required (0/15) |
| Subscription | None | Oura Membership |
⚡ = where they differ.
Colmi R02 / R06
Budget ring that is "highly supported" by Gadgetbridge, so you can sync it fully locally with no vendor account. No official API.
API · Export · Home Assistant
Oura Ring 4
Official REST API (v2) via your own OAuth app (personal tokens were deprecated in Dec 2025). The API needs an active Oura Membership; data download via the Membership Hub doesn't. Home Assistant support is a community (HACS) integration.
API · Export · Home Assistant
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Colmi R02 / R06 vs Oura Ring 5
Oura Ring 4 vs Ultrahuman Ring AIR
Open in the interactive compare tool
Scores come from each device's cited sources, last verified 2026-10-20. See how we score.
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