Most fitness wearables are good at telling you how your body is doing. They can show your recovery score, sleep quality, or resting heart rate without much effort.
The tricky part comes afterwards.
You might wake up feeling tired, check your ring, and see that your recovery isn’t great. But then you’re left wondering whether you should still do that HIIT session you planned or swap it for something lighter. The wearable gives you the data, but not always the decision.
That’s the gap Ultrahuman is trying to fill with its new partnership with Les Mills.
Your workout changes with your recovery
The new Les Mills PowerPlug brings a large collection of Les Mills workouts directly into the Ultrahuman app. But instead of asking you to scroll through hundreds of classes, it narrows things down based on how your body is feeling that day.
When you first set it up, you choose a fitness goal, how often you’d like to work out, and roughly how long each session should be. After that, the recommendations keep changing as your recovery changes.
Had a great night’s sleep? You might see a strength or cardio session waiting for you.
Didn’t recover well or wake up feeling run down? The app is more likely to suggest yoga, stretching, or mobility work instead.
It sounds simple, but it’s a very different way of using wearable data.
Still led by real instructors
One thing that stands out is that this isn’t an AI workout generator.
The coaching still comes from Les Mills instructors through classes like BODYPUMP™, BODYCOMBAT™, HIIT, yoga, stretching, and recovery sessions. Ultrahuman’s role is deciding which workout is likely to suit you that day.
It’s a nice balance. You still get structured coaching from experienced trainers, but the recommendations are personalised using your own health data rather than a fixed weekly schedule.
Your body decides the intensity
Behind the scenes, the recommendations rely on several signals from the Ultrahuman Ring.
If your heart rate variability is looking good and your resting heart rate is low, the app assumes your body is ready for a tougher workout.
If your sleep hasn’t been great, your recovery is lagging, or your body temperature and resting heart rate suggest you’re under stress, it takes a different approach and recommends something less demanding.
The PowerPlug also adjusts workouts based on menstrual cycle phases for users who track them. During phases when energy levels are typically higher, more intense workouts appear more often. During menstruation and the later stages of the cycle, the focus shifts toward gentler sessions, with certain high-impact workouts filtered out automatically.
The ring keeps working while you do
The experience doesn’t stop once you press play.
Because you’re already wearing the Ultrahuman Ring, your workout is tracked automatically. Calories, workout duration, heart rate zones, and movement are recorded without needing to start or stop anything manually.
Once you’re done, the app updates your recovery prediction for the next day and shows how that workout contributed to your overall movement goals.
In other words, today’s workout helps shape tomorrow’s recommendation.
A smarter way to choose what to do
There are already plenty of workout libraries out there.
What makes this one different isn’t the number of classes. It’s the fact that you’re less likely to pick a workout that’s completely out of sync with how your body feels.
Some days your body is ready to push harder. Other days it probably isn’t, even if your calendar says otherwise.
That’s what this integration is trying to account for.
Pricing and availability
The Les Mills PowerPlug is available globally for Ultrahuman Ring AIR and Ring PRO users through the Ultrahuman app.
It costs $11.99 per month or $99.99 per year.
For anyone who already relies on wearable data to guide recovery, the partnership adds another practical layer. Instead of simply telling you how your body is doing, it helps answer the next question: what’s the right workout for today?
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