Here is a smart band that turns your Apple Watch into a body composition tracker. The AURA Strap 2 turns your Apple Watch into a body composition and water level tracker. You will be able to measure how much fat, muscles, and body water change as you exercise.
The companion app has a four-quadrant BIVA map that helps you better understand where you are on the way to your ideal body. The AURA Strap 2 is comfortable to wear and works with Apple HealthKit. The app gives you recommendations and smart data to help you reach your goals. The battery lasts up to 6 months. The Aura Strap 2 is compatible with Apple Watch Series 3 and above.