Amazfit
Amazfit T Rex 3 Pro gets lactate threshold and Bluetooth disconnect alerts
· By Endurance Wire
Image source: Gadgets & Wearables News smartwatch Wearables zepp health March 31, 2026 Ivan Jovin Firmware update 3 min read The Amazfit T Rex 3 Pro is getting a pretty chunky software update, version 4.6.5.2, and this one brings some genuinely useful additions. The big ones are automatic lactate threshold detection for runners, a route back feature for outdoor workouts, tweaks to maps and sleep tracking, plus Bluetooth disconnection alerts. Let’s start with the one most users have been waiting for – automatic lactate threshold detection during Outdoor Running and Track Run workouts.
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