Color: Black steel band, silver steel band, black mesh band, silver mesh band. Screen size: 1.3 inches. Camera: Not available. Communication function: Yes. Screen resolution: 240 x 240. Product weight: 180 g. Interface: USB 2.0. Band size: 28 mm or less. Additional functions: Step counter, monitoring, smart reminder, remote selfie control, health monitoring, notifications, sleep analysis. Menu languages: Chinese, English, Japanese, Korean, French, German, Russian, Polish, Spanish, Portuguese, Dutch, Arabic. Color classification: Black. Communication type: Does not support SIM card. Screen material: LED. Package contents: Watch, box, manual, charger. Wireless range: 5-10 m. Shipping time: 16-30 days. Target audience: Men, professionals, general public, teenagers, adults, seniors. Body memory: Not available. Battery capacity: 220 mAh. Water resistance: Splash resistant. Operation mode: Touchscreen. Charging method: Magnetic cable. Strap material: Stainless steel. Screen type: TFT. Product size: 45 mm. Compatible systems: Fully compatible. Functions: Water resistant, photography, pedometer, heart rate monitoring, blood pressure measurement, Bluetooth calling, smart reminder, remote selfie control, sleep monitoring, blood oxygen detection, notifications. Wearing method: Wristband. Strap style: Classic with button.