About this product Strong Encryption Protection: High-strength intelligent encryption algorithm protects your personal privacy anytime and anywhere, giving you a private world Wide Compatibility: The app is compatible with most Bluetooth 5.2 smartphones, compatible system: iOS 10.0 or above, Android 5.0 1.9-inch HD screen: built-in 1.9-inch TFT screen with 420 x 480 resolution, higher definition Multi-scene APP UI selection: intelligent split-screen presentation + 3 dynamic menu styles, to meet your daily running habits, knob operation, turn your personality. Meet your daily running habits, knob operation, give your personality Real-time location sharing: Added real-time location sharing. With SW1773, you can connect to the app for easy real-time location sharing 128M super large memory: 128M super large memory. Comes with 18 dials + custom dials to make your SW1773 style more eye-catching Offline payment and collection: offline payment and collection functions, no mobile phone payment is required, and the watch can scan the code for easy collection and payment Global Language Switch: The bracelet has a built-in UI language for watches in 21 countries around the world, and is set to sync notifications and push notifications in 21 countries. The clock can be switched with a button, and the personality is free to choose.