【Day and Night Sleep Tracker】Our newly upgraded health smart bands 24/7 tracking day and night sleep. Monitor your nighttime sleep and daytime naps for a comprehensive rest analysis. Get professional insights into your sleep stages (light, deep, REM), sleep duration, and awake time. Understand your unique sleeping patterns with detailed reports.【Up to 25 Days of Battery Life & Waterproof】Solve your daily charging worries with the our ultra-long 25-30 day battery life fitness tracker. Built-in 1 ATM water resistance makes it easy to handle workouts, hand washing and active lifestyles.【Take Pictures & Incoming Call Reminder】Simply wave your hand wearing the smart wristband anytime anywhere to take a photo. Smart bracelet with incoming call reminder function, the indicator light reminds you to check your phone and never miss any important call.【Free APP】Enjoy truly free fitness tracking with 100% subscription-free app—no hidden fees, no service charges, ever. Get AI insights that help you improve every day.【Lightweight & Comfortable】Our smart bracelet is lightness and comfort. The stylish metal case is durable, and comes with three straps (silicone and nylon) for a versatile look. Suitable for wearing in any occasion.