| Bangle.js 2 | Garmin Venu 4 | |
|---|---|---|
| Score | 85/100 (Great) | 68/100 (Good) |
| Official API ⚡ | Open API (25/25) | Partner/business only (10/25) |
| Data export | Local raw files (25/25) | Local raw files (25/25) |
| Gadgetbridge / open firmware ⚡ | Supported (20/20) | Partial (10/20) |
| Home Assistant ⚡ | None (0/15) | Community (HACS) (8/15) |
| Subscription | Not needed (15/15) | Not needed (15/15) |
| Subscription | None | Connect+ optional |
⚡ = where they differ.
Bangle.js 2
Open-source, hackable JavaScript smartwatch. Full Gadgetbridge support and no account at all. The gold standard for data ownership, traded off against polish and sensors.
API · Export · Home Assistant
Garmin Venu 4
Garmin's AMOLED lifestyle watch. Same data story as other Garmins: activities and health data sync as FIT files you can copy off the watch, Garmin Connect lets you export, the Connect Developer Program is for approved business partners, and Home Assistant support is community-made. Gadgetbridge lists the Venu 4 among supported Garmin devices; we rate it partial until feature coverage is confirmed. Garmin Connect+ is optional; core features don't need it.
API · Export · Home Assistant
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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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