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Amazfit T-Rex 3 smartwatch users flag new battery drain problem

Some Amazfit T-Rex 3 users are currently experiencing battery drain issues. (Image source: Amazfit)
Some Amazfit T-Rex 3 users are currently experiencing battery drain issues. (Image source: Amazfit)
The Amazfit T-Rex 3 smartwatch is suffering from faster-than-usual battery drain after a recent software update. According to various user reports on Reddit, the watch is now losing almost double the battery percentage on a daily basis. However, one user has suggested what is causing the problem and how to fix it.

Users of the Amazfit T-Rex 3 smartwatch are reporting a battery drain issue. According to several Reddit users, the faster-than-expected loss of battery started after the latest update, version 3.4.4.7, which began to roll out to users earlier this month.

Several owners of the T-Rex 3 have said that they typically saw 2-7% daily battery drain but were experiencing a 5-10% loss after the update. Reddit user u/Vizzzions suggested that this could be linked to the new active heart rate monitoring feature. Some T-Rex 3 customers found that disabling this tool, found under the Heart rate app > Settings, did improve the battery life of their wearable.

A member of the Amazfit team has acknowledged this issue and is requesting that users submit feedback accordingly in the Zepp app under Devices > User Feedback. However, the company has yet to indicate when an official fix for the battery drain problem will be released. It is also unclear whether Amazfit has paused the phased rollout of software version 3.4.4.7 until it has fixed this issue for the T-Rex 3 smartwatch (currently $234.99 at Amazon).

Amazfit's response to the Reddit thread about the recent T-Rex 3 battery drain issue. (Image source: Reddit)
Amazfit's response to the Reddit thread about the recent T-Rex 3 battery drain issue. (Image source: Reddit)
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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2025 01 > Amazfit T-Rex 3 smartwatch users flag new battery drain problem
Polly Allcock, 2025-01-20 (Update: 2025-01-20)