If you just unboxed the Amazfit Active 3 Premium, don’t head out for that first run just yet. Firmware version 3.7.0.6 is already waiting for you in the Zepp app — and at just 16.12MB, it’s a deceptively small download that delivers a surprisingly big upgrade.
We’re talking lactate threshold detection, running power, gear tracking, and more. This isn’t a bug fix. It’s the update that finishes the watch.
Let’s break down what’s new, why it matters, and how to get it on your wrist today.
What Is the Amazfit Active 3 Premium Firmware Update 3.7.0.6?
This is the first official firmware update for the Amazfit Active 3 Premium, pushed through the Zepp companion app.
Unlike typical bug-fix rollouts, this update adds substantial new functionality that wasn’t available at launch — including metrics that have never appeared on any Amazfit device before.
If you’re the kind of person who bought this watch specifically to train smarter, not just harder, this update is the one you’ve been waiting for.
New Running Metrics: A Big Deal for Endurance Athletes
Lactate Threshold Detection — A First for Amazfit
The headline feature here is Lactate Threshold (LT) detection, and it deserves some real attention.
Your lactate threshold is the exercise intensity at which lactic acid starts accumulating in your bloodstream faster than your body can clear it.
Cross that threshold and fatigue hits quickly. Stay just below it and you can sustain hard effort for a long time. For endurance runners, knowing this number precisely is one of the most valuable pieces of physiological data available.
What makes this significant is that the Amazfit Active 3 Premium is the first Amazfit watch ever to support lactate threshold measurement.
Competing devices from Garmin and Polar have offered this for a while, so this puts the Active 3 Premium in a much more competitive performance tier. If you’ve been cross-shopping wearables and this metric was on your checklist, it just moved in Amazfit’s favour.
Running Power (Measured in Watts)
Also new in this update: Running Power. This metric expresses your running effort in watts — similar to how cyclists use power meters — giving you a real-time, consistent way to measure exertion regardless of terrain, wind, or heat.
Heart rate responds slowly. Speed fluctuates with hills. Running power? It reacts instantly and tells you exactly how hard you’re working right now. Coaches and data-driven athletes love it for pacing on race day and structuring interval workouts.
Ground Contact Time
The third new metric is Ground Contact Time (GCT) — how long your foot stays planted on the ground with each stride.
Lower GCT generally correlates with better running economy and reduced injury risk. It’s a subtle but informative data point for anyone working on their form or coming back from injury.
Together, these three additions — Lactate Threshold, Running Power, and Ground Contact Time — form a proper advanced running analytics suite.
Whether the brand will back-port any of these to older models like the GTR or T-Rex series hasn’t been announced yet, but for now, these features belong exclusively to the Active 3 Premium.
Gear Management: Finally, a Smart Way to Track Your Running Shoes
If you’ve ever tried to manually track the mileage on your running shoes in a spreadsheet, you’ll immediately understand why Gear Management is a welcome addition.
This new feature, integrated into the Zepp ecosystem, lets you pair specific equipment — particularly running shoes — directly to your watch.
Once connected, the watch automatically logs cumulative mileage for each pair as you run. When a pair starts approaching the end of its lifespan (typically 400–500 miles for most shoes), you’ll know without having to do any math.
This matters more than it sounds. Worn-out shoes are a leading cause of running injuries. Having built-in tracking removes one more barrier between you and smarter training habits.
Training Library and Podcast App
Beyond the metrics and gear tracking, firmware 3.7.0.6 also introduces two quality-of-life upgrades:
Training Library — A centralized hub for managing and organizing your workouts directly from the watch. Instead of hunting through menus, your training plans and exercises are consolidated in one place.
Podcast App — Following its debut on the T-Rex 3 earlier this year, the podcast app has now arrived on the Active 3 Premium.
This is big for anyone who runs without their phone. Long easy runs and recovery jogs become a lot more enjoyable when you can catch up on your favorite shows without carrying extra weight.
How to Install Firmware Update 3.7.0.6
Getting the update is straightforward. Here’s how to do it:
- Open the Zepp App on your iPhone or Android device
- Go to your Profile tab at the bottom of the screen
- Select your Amazfit Active 3 Premium from your device list
- Tap System Update — if version 3.7.0.6 is available, it will appear here
- Follow the prompts to download and install
The whole process typically takes a few minutes. Keep your watch charged above 30% before starting, and stay near your phone during the sync.
Pro tip: If you’re a new owner, install this update before your very first run. The lactate threshold and running power metrics need to be active from the start to capture accurate baseline data from day one.
Is This Update Worth It? (Spoiler: Yes)
For a wearable in this price range, the free addition of lactate threshold detection alone is remarkable. That single metric typically pushes users toward pricier Garmin or Polar hardware.
Add Running Power, Gear Management, and a podcast app, and the Active 3 Premium’s value proposition gets considerably stronger after this update.
The Zepp platform continues to evolve, and updates like this one suggest Amazfit is genuinely committed to making the Active 3 Premium a long-term training companion — not just a launch-day product.
Final Thoughts
The Amazfit Active 3 Premium firmware update 3.7.0.6 isn’t just maintenance — it’s a meaningful expansion of what the watch can do.
Whether you’re training for your first 5K or preparing for an ultra, the new metrics give you sharper tools to understand your body and improve your performance.
Update your watch, lace up, and go find your threshold.
Have questions about the Amazfit Active 3 Premium or the new firmware features? Drop them in the comments below.
Ready to Run Smarter?
The Amazfit Active 3 Premium was already one of the best value-for-money running watches on the market. With firmware 3.7.0.6 now live, it just got better — for free. Lactate threshold detection, running power, gear tracking, and a podcast app, all on your wrist without a subscription fee.
If you’ve been sitting on the fence, this update just made the decision easier.
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