Gadgetbridge lists the Smart Band 9 (sold as Mi Band 9) as supported via its Xiaomi protobuf implementation. Cheap, and works offline.
Score breakdown
Official APINo API · 0/25
Data exportLocal raw files · 25/25
Gadgetbridge / open firmwareSupported · 20/20
Home AssistantNone · 0/15
SubscriptionNot needed · 15/15
Quick answers
Does the Xiaomi Smart Band 9 have an API?
How to export your Xiaomi Smart Band 9 data
Xiaomi Smart Band 9 and Home Assistant
Sources
Last verified 2026-10-20. See how we score.
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