Amazfit Balance 2 update tweaks VO2 max altitude and Zepp Flow

Amazfit Balance 2 is getting another firmware update only days after version 3.54.2.1 landed. Version 3.54.4.2 focuses on VO2 max, altitude stability, Zepp Flow, map navigation and golf behaviour.

VO2 max gets a recalibration pass

The most interesting item is the VO2 max algorithm change. Zepp Health says the update improves VO2 max accuracy, but also adds that results will be gradually calibrated based on new workout data after installation.

Which means owners should not expect the watch to instantly rewrite their fitness profile the moment the update finishes. The Balance 2 will need fresh sessions before the updated algorithm has enough recent data to settle. This, most would agree, is a sensible approach.

The altitude fix is also worth watching in real use. Zepp Health says the new firmware improves altitude data stability during outdoor workouts and reduces abnormal fluctuations in accumulated ascent and descent. In fact, we have noticed some issue with altitude tracking in device we have been testing in recent months. Hopefully, this will help to resolve the discrepancies.

Zepp Flow gets more useful on the wrist

Zepp Flow also gets a broader set of changes. The update adds more flexible volume control, quicker voice feedback and improvements around notification reminders and related settings.

The change-log also mentions expanded voice interaction. Balance 2 owners can now ask for HybridCharge-related information and use voice commands to reach more workout modes, system apps and frequently used features.

Map navigation gets a smaller tweak, but one that could matter mid-session. After opening the map track menu during a workout, users can access the feature through a newly added navigation entry.

Golf also gets attention, but this is more niche. The firmware changes the completion reminder wording for golf course data downloads and terrain map downloads. It also adjusts hole-switching logic to improve behaviour on the course.

A small update

There is no sign here of Zepp OS 6 or Strava Live Segments, if that is what you were waiting for. But for current Balance 2 owners, the practical takeaway is simple. Install it before your next run, hike or round of golf, then give the VO2 max and altitude changes a few workouts before judging them.

The late June firmware brought bigger owner-facing additions, including HybridCharge, Next Hard Session, HYROX tools, Helio Core Motion accessory support and several workout-related improvements. This new update looks more like a clean-up pass after that larger feature drop.