Every wearable these days will tell you how you slept and how well recovered you seem to be for the day’s activities. But it’s rare to get clear guidance or ideas on what you should do based on those scores. Ultrahuman, which makes smart rings, is trying a new approach: serving you different workout videos based on what it thinks you’re up for.

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I can appreciate this approach, but I’m also a bit skeptical about letting an app choose a workout for me—what if I feel ready for something else? But I’ve used Garmin’s suggested workouts before, and I find the idea works well as long as you take the recommended workouts as suggestions, not limitations.

What’s in the Les Mills PowerPlug?

This new feature in the Ultrahuman app is available as a PowerPlug. If you use an Ultrahuman ring, you probably know there’s a selection of PowerPlugs available from a store within the app. Some are free, and some have a subscription charge. The Les Mills PowerPlug costs $11.99 per month, $99 per year, or $249 for a lifetime subscription.

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Les Mills is a franchise of gym-based fitness classes, which are faithfully replicated in a Les Mills+ app that my colleague Lindsey Ellefson reviewed in detail here. She says the classes have clear instruction with no chit-chat, have original music, and stick to predictable, familiar patterns for each class type.

Each day you’ll get two to three recommended classes, but you can also browse a full catalog if you’d like to do a different workout. For some examples of what may be on offer, Ultrahuman says: “A well-recovered user with elevated heart rate variability and low resting heart rate might see BODYPUMP™ or BODYCOMBAT™ at the top of their feed. On the other hand, a user with accumulated sleep debt, elevated body temperature, increased resting heart rate, or low heart rate variability would be guided toward yoga, BODYBALANCE™, or a gentle mobility session instead.”

What do you think so far?

If you track your menstrual cycle through the Ultrahuman app, recommendations will take that into account as well. That’s where I have another surge of skepticism—Ultrahuman says “luteal and menstrual phases automatically shift toward recovery-friendly content.” That means you could spend half your month being steered away from hard training, which sounds like it’s at odds with most people’s fitness goals.

After you finish a Les Mills workout through the Ultrahuman app, you’ll find that your workout data, including heart rate, was logged through the ring, the muscles you used were logged, and you’ll get post-workout data like a prediction of your readiness for the next day.

Ultrahuman Will Now Suggest Workout Videos Based on Your Recovery Score and Menstrual Cycle