Xiaomi Smart Band 8 smartwatch/fitness tracker, graphite black. Very good condition, battery life still over a week, very quick charging from any USB charger with a Type A socket.
Heart Rate Monitor, Oxymeter (SpO2), Sleep Monitor. Requires Mi Fitness app to be installed on a paired smartphone.
User guide: https://www.mi.com/uk/support/user-guide-pdf/xiaomi-smart-band-8/
Smartwatch/fitness tracker (Finchampstead RG40)
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