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Amazfit improves new BioCharge metric for wearable users

Amazfit’s Helio Strap (pictured) is receiving a new update. (Image source: Amazfit)
Amazfit’s Helio Strap (pictured) is receiving a new update. (Image source: Amazfit)
Amazfit is rolling out a new update for the Helio strap: version 3.1.2.3. This update optimizes the new BioCharge metric, a score which helps users monitor their energy levels. According to the change log, the release also brings support for a new heart rate function and optimizations for automatic workout detection.

The Amazfit Helio Strap is receiving another software update. Version 3.1.2.3 arrives a couple of weeks after the 3.0.6.4 release, which improved the stability of the heart rate broadcast feature.

Recently reported by users on Reddit, software version 3.1.2.3 is a 2.24 MB file. The release notes state that the calculation behind the new BioCharge metric has been improved for cases where the Helio Strap is not worn for an extended period. As a reminder, this metric is designed to enable users to track changes to their enegy levels throughout the day.

The update also brings optimizations for automatic activity recognition to reduce reclassification. Plus, Amazfit Helio Strap users can now view changes to their heart rate in real time in the latest version of the Zepp app (9.10.0 for iOS and 9.9.6 for Android). On top of this, there are said to be other feature improvements and bug fixes, though these are not individually listed.

Software version 3.1.2.3 is expected to be rolling out in phases to users of the Helio Strap (curr. $99.99 at Amazon). It has been reported in the UK, though it is unclear when it will be available for users in all regions. You can check for the update in the Zepp app for iOS and Android.

The release notes for software version 3.1.2.3 for the Amazfit Helio Strap. (Image source:  u/FluffyMousse6975 via Reddit)
The release notes for software version 3.1.2.3 for the Amazfit Helio Strap. (Image source: u/FluffyMousse6975 via Reddit)
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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2025 07 > Amazfit improves new BioCharge metric for wearable users
Polly Allcock, 2025-07-26 (Update: 2025-07-26)