Features & details Body Composition Monitoring – uses breakthrough Bioimpedance Analysis technology, where a weak electric current flows through the body and the voltage is measured to calculate your body’s impedance (resistance). Maximize your Fitness Activity – use Aura Strap see how fat, muscle, body mass, minerals and hydration change during your fitness activity, impacting health & wellness. Helping to Improve overall fitness performance and reduce body fat. Unique Design – Aura Srap has an easily adjustable nylon strap to fit any wrist. It is water-resistant. Sleek design makes it the perfect way to showcase and customize your watch. Mobile implementation helps this strap measure body fat better than a scale. Your Data in One App - The companion app will help you understand your data and BMI, so you can update or set new goals. The Aura app safely and securely stores all fitness data with easy access for the user Easy Setup - Pair your Strap to your phone via Bluetooth and start testing in a few minutes. Socially Approved – Over 11,000 people have already chosen our body analyzer. All components are covered by an extended 12-month warranty after purchase Boost your Apple Watch Now – The only Sport Strap on the market compatible with your Apple Watch. The best way to measure hydration level and body composition right on your Apple Watch.