LONG BATTERY LIFE: 2-30 days on a single charge is achieved by dual layered technology and two modes. Smart Mode will get you 2-days of battery life and Essential Mode will achieve 30-days of battery life. If Auto Switch to Essential Mode is turned on, then 5-days of battery life will be achieved. WARNING: Please charge from a computer USB port or with a 5V 1A USB power adapter, please avoid any 2.1A fast charging or the charger will be fried.
SMART MODE: Wear OS by Google, AMOLED display, Google Assistant, thousands of apps and watch faces through Google Play store, health & fitness tracking (Limited features for iPhone users).
ESSENTIAL MODE: Power saving FSTN LCD display, high sunlight visibility, shows essential information including time/date/ step counter/heart rate
NFC PAYMENTS: Use Google Pay to purchase directly from your wrist at millions of places without fumbling around for your wallet. 30-day money-back guarantee for any reason, 12-month warranty for quality-related issues.