A firmware update for Amazfit GTR and GTS is adding a useful nap tracking function.
Source: Tracking naps is coming soon to your Amazfit GTS and GTR watch
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Amazfit GTS review: Is this the budget smartwatch for you?
The Amazfit GTS has a vibrant display, and impressive battery life, but inconsistencies are the bane of its existence. This is our Amazfit GTS review. Source: Amazfit GTS review: Is this the budget smartwatch for you?