Feature:Constantly update the watch face. You can switch to the one that best suits your mood or specific occasion.Description: Name: Smart Watch Model: SMA-TK04; Colour: Black; Body material: zinc alloy + PC + glass fiber; Strap material: silicone; Chip: MTK2503A-ARM7; Screen size: 1.3 inches; Resolution: 240 x 240; Battery capacity: 320 mAh; Charging method: Magnetic charging clip USB charging; Waterproof grade: IP67; Bluetooth-compatible version: Bluetooth-compatible 4.0 + 3.0; Memory: 128MB + 64MB; Compatibility: Compatible for Android 4.4 / iOS 8.0 and above; Languages: Chinese, English, French, Spanish, Polish, Portuguese, Italian, Dutch, Turkish, Russian, German; Overall length: 270 mm/10.62 inches; Item Weight: 139 g / 4.9 oz; Packing list: Watch x 1 Charging Line x 1 Instructions x 1 Note: 1. Due to manual measurement, please allow 1-3cm error. Make sure you don't mind before bidding. 2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks.