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| Amazfit’s Balance 2 smartwatch is receiving firmware version 3.39.0.4 |
Hot on the heels of its significant December upgrade, the popular Amazfit Balance 2 smartwatch is kicking off 2026 with another feature-packed software update. Firmware version 3.39.0.4 is now beginning its rollout, introducing a suite of new tools aimed at runners, swimmers, and outdoor enthusiasts, while refining the overall user experience.
The update was officially announced by Zepp Health on their Discord channel, with details quickly spreading through communities like Reddit, where user *u/gamefan5* shared the news. This marks the first software release of the year for the wearable, which currently retails for $249.99 on Amazon.
What’s New in Version 3.39.0.4?
This isn't just a minor bug-fix patch. Zepp Health is adding four notable features to the Balance 2's already robust toolkit.
- Exercise Sound Cues: A new auditory feedback system. During workouts, the watch (or your connected headphones) can now play reminder cues for intervals, pace, or other metrics, allowing you to keep your eyes on the path ahead.
- Route Planning Tool: Enhancing the watch's outdoor capabilities, users can now design and plan running or cycling courses. This can be done directly on the watch's display or via the companion Zepp app, adding a new layer of preparation for your adventures.
- Helio Strap Support for Swimming: For those who demand precise heart rate data in the pool, the update finally enables heart rate recording during swim workouts using the separate Amazfit Helio Strap, a popular accessory for aquatic athletes.
- Easier Audio Source Switching: Navigating your music and podcasts just got smoother. The updated Music app on the watch makes it simpler to switch between connected third-party audio sources, like your phone or a standalone music service.
Refinements and Optimizations
Beyond the flashy new features, the update focuses on polishing the daily experience. Key improvements include:
- Optimized vibration alerts during exercise.
- Reduced system interference when using the dive mode.
- An enhanced Zepp Coach training plan experience.
- A better map display with additional route information.
- Claims of more stable battery life performance.
The company shared the complete changelog visually, as seen in their official Discord announcement.
How to Get the Update
As with most smartwatch updates, version 3.39.0.4 is rolling out in phases. There's no single completion date for the global rollout. To check if it's available for your device, open the Zepp app on your connected smartphone, navigate to your Balance 2's settings, and look for an update prompt. Installing it typically takes a few minutes and requires the watch to have ample battery.
The continued software support for the Balance 2 demonstrates Zepp Health's commitment to adding value post-purchase. For current owners, it's a welcome gift for the new year. For those considering the Amazfit Balance 2 on Amazon, it underscores the watch's evolving capabilities.
Source: Zepp Health via Discord, Reddit thread u/gamefan5.
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| The Amazfit Balance 2 smartwatch firmware version 3.39.0.4 changelog |