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| Amazfit’s Active Max smartwatch is receiving v3.7.0.1 |
Big news for Amazfit Active Max owners — the smartwatch is getting its first major feature update of the spring, and it’s a big one. Firmware version 3.7.0.1 is now rolling out, and it brings the kind of advanced training metric that running enthusiasts usually have to pay a lot more to get.
Just over a month ago, the Active Max received its March update (version 3.4.0.3), which added a dedicated podcast app plus rucking and hybrid training activities. Now, Amazfit is pushing things even further by introducing Lactate Threshold measurement to this model. If you’re serious about running or endurance sports, this is a game-changer.
For a full breakdown of the update straight from Amazfit, you can read their official spring update announcement here.
⚡️ What Is Lactate Threshold & Why Does It Matter?
In simple terms, your lactate threshold is the point during intense exercise where lactic acid starts building up in your muscles faster than your body can clear it. Cross that line, and fatigue hits quickly. Stay just below it, and you can sustain a hard effort for much longer.
For runners, this metric is incredibly valuable. It helps you pinpoint the exact intensity where your workout shifts from “sustainable” to “painful.” The Amazfit Active Max can now automatically estimate your lactate threshold heart rate (LTHR) and pace (LTP) based on your regular running data, or you can run a guided manual test.
How to run a manual test:
Go to Workouts > Select a Running Sport > Settings > Training > Lactate Threshold Test.
You can also just let the watch do its thing in the background and view all the captured data later in the Zepp app.
This feature has already appeared on higher-end models like the T-Rex 3 Pro, Balance 2, and Active 3 Premium, so seeing it arrive on the Active Max is a clear sign that Amazfit is committed to spreading advanced features across its lineup. For a watch that currently sells for around $169.99 on Amazon, this is an impressive addition.
👉 Check the latest price of the Amazfit Active Max on Amazon
📈 Sleep Tracking Gets Smarter
Version 3.7.0.1 isn’t just about running. Amazfit has also improved the sleep staging algorithm. The update promises more accurate detection of the three main sleep stages: Light, Deep, and REM. So whether you’re a data geek or just want to wake up feeling better, you’ll appreciate the more precise insights into your nightly rest.
🐞 Other Fixes & Rollout Details
As usual, this update also includes “other minor system optimizations and fixed various bugs” according to Amazfit, though they haven’t specified exactly what’s been patched.
The update is rolling out in phases, meaning it might take a few days or even weeks to reach your device depending on your region. Once it’s available, you’ll be able to trigger the install process directly through the Zepp app.
🏁 Final Thoughts
The Amazfit Active Max continues to prove itself as a serious contender in the sub-$200 smartwatch market. By adding Lactate Threshold measurement, Amazfit is bringing a feature typically reserved for premium Garmin and Polar devices to a much more accessible price point. Whether you’re training for a marathon or just trying to shave a few minutes off your 5K time, this update gives you a powerful new tool to train smarter.
For more technical details and hands-on impressions of the lactate threshold feature, check out the full report from Gadgets & Wearables.
Keep an eye on the Zepp app for the update notification, and happy running.
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| The Amazfit Lactate Threshold measurement feature |