30 Day Battery Smartwatch 1000mAh large battery lasts 1 month. Works with iOS 9+ & Android 6+. Make/receive calls & message alerts. Tracks sleep heart rate blood pressure. Weather forecasts/alarms/Music control 【30+ Days Battery Life – Never Stop Exploring】Say goodbye to daily charging! With a powerful 1000mAh battery, smart watch lasts up to 30 days on a single charge (100 days in standby) and powers up in just 2.5 hours. Perfect for travelers, adventurers, or busy professionals who need reliable all-day tracking without interruptions. Works seamlessly with iOS 9.0+ and Android 6.0+, outperforming other android smart watch and smart watch for android phones in endurance