Bought a GTS2 for my wife. Very disappointed. The battery life is only 2 days, not 7 days as advertised. Alexa support is not yet available. According to amazfit, this could happen in a few weeks (today is December 10). Sleep tracking seems to work. Activity and step tracking only works sometimes. SpO2 and stress drain the battery. Heart rate readings are sometimes accurate and sometimes not. I'm debating whether to return it or wait for a firmware update. Disappointed.**UPDATE 1-10-2021**Just found out that ALEXA support has been postponed until mid-February. Connecting and using Bluetooth uses a lot of battery power.
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