What is Slize, and what are the benefits?

Slize is the world’s first fitness wearable and app designed specifically to optimize muscle growth through precise, data-driven guidance on training, nutrition and muscle group recovery.

By combining real-time body metrics with AI-powered coaching, Slize gives you exact recommendations on how to train smarter, how to recover faster, and how to fuel your body with the exact meals it needs to build muscle efficiently.

Slize tracks your muscle mass, body fat percentage, muscle group recovery, and personalized calorie and macronutrient requirements -guiding you every step of the way toward your muscle-building goals.

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Visualize your muscle building goals

When first getting access to the Slize app, you will be met by the task of submitting your current situation and your food preferences as well as visualizing your muscle building goals.

Your muscle building goal will be the foundation for all data-driven and AI-driven recommendations for daily training sessions, macro and calorie targets as well as recovery.

Reaching a destination is possible ONLY if you know exactly where you're going.

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Macro and calorie recommendations, tailored to your muscle-building goals, powered by AI.

No more guesswork or trial and error. No more wondering if your hit your calorie or protein goal on the day.

Based on your body data, your recommended training session and your overall muscle building goal, the Slize wearable and your personal AI-coach in the app will tell you exactly what to eat on the day to support your training and recovery.

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Measure and monitor your muscle mass and body fat percentage progress

With built-in BIA (bioelectrical impedance analysis), the Slize wearable lets you accurately measure and track your muscle mass and body fat percentage - simply by scanning two fingertips on the device's top sensors each day.

It’s a quick, effortless way to ensure you're consistently progressing toward your goals.

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Daily training session recommendations and muscle group recovery insight

No more guesswork. Get precise insights into your muscle recovery and know exactly which muscle groups to train each day. Ensure every rep counts, without overtraining or missing a step in your progress.

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Sleep schedule recommendations to support your muscle growth

Sleep is one of the most important factors of muscle growth. Even with the right training and nutrition, your muscles will not recover properly without enough and consistent sleep.

Get tailored recommendations to sleep lenght and timing directly in your Slize app, based on your body data.

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Increase your Power Rank & accumulate Performance Points

Healthy competition is what drives us forward.

When you log in to the Slize app, complete training sessions, compete in social challenges, follow diet and recovery recommendations, maintain a login streak (and more), you will be rewarded Performance Points.


You can use your Power Rank and Performance Points to unlock special wearable designs and colors, discounts on a various product selection, access to exclusive events and more..

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