Color: Steel Belt black, steel belt silver, mesh belt Black, mesh belt Silver Screen size: 1.3 inches Camera: None Communication Function: Supported Screen resolution: 240*240 Product Weight: 180 Interface: USB 2.0 Watch strap size: 28mm and below Additional features: step counting, monitoring, smart reminder, remote control selfie, health monitoring, information push, sleep analysis Menu Language: Chinese, English, Chinese, Japanese, Korean, French, German, Russian, Polish, Spanish, Portuguese, Dutch, Arabic Color classification: Black Type of communication: plug-in card not enabled Screen material: LED Packing List: host watch box manual charger Wireless distance: 5m (inclusive)-10m (inclusive) Fastest shipping time: 16-30 days Applicable people: men, business, neutral, public, teenagers, adults, elderly Body Memory: None Battery capacity: 220mA Waterproof grade: life waterproof Operation mode: Touch Charging Method: magnetic charging cable Wristband material: Stainless steel Screen Type: TFT screen Product Size: 45mm Compatible system: fully compatible Functions: Waterproof, photographing, step counting, heart rate monitoring, blood pressure measurement, Bluetooth calling, smart reminder, remote control selfie, sleep monitoring, blood oxygen detection, information push Wearing method: wrist strap Watch strap style: classic button type