Bangle.js 2 vs Withings ScanWatch 2: which lets you own your data?

Bangle.js 2 scores higher for data ownership (85 vs 63). They differ on data export, gadgetbridge / open firmware, home assistant, subscription.

Bangle.js 2Withings ScanWatch 2
Score85/100 (Great)63/100 (Good)
Official APIOpen API (25/25)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)Official integration (15/15)
Subscription ⚡Not needed (15/15)Optional (8/15)
SubscriptionNoneWithings+ (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

Withings ScanWatch 2

Public Withings developer API and an official Home Assistant integration. Gadgetbridge supports only the older Steel HR, not ScanWatch. Withings+ is optional.

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.

📬 The Data Ownership Digest

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