One of the best Android smartwatches I've used is not a Google or Samsung (and it's $100 off)
Briefly

The Mobvoi TicWatch Pro 5 Enduro offers up to 90 hours of battery life in smart mode, making it a standout choice for efficient wearables.
Its dual-display system allows for low-power usage, extending battery life drastically, with the watch able to last up to 45 days in Essential Mode.
Read at ZDNET
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