General - Brand: YESIDO. - Model: IO34. Display - Screen size: 1.43 inch. - Screen type: AMOLED. - Resolution: 466 × 466. - HD Touch Screen. - Water Splash-Resistant. Platform - OS: Android, iOS. - APP: Yesido Fit. Connectivity features - Bluetooth Compatible. - Usage Time: 4-6 days. Technical Specifications - Material: Zinc Alloy + PC + SUS. - Main Control: AD7012. - Heart Rate Chip: VC30F-S. - Sensor: LIS2DOCTR. - Flash: 128MB. Battery - Battery Capacity: 300mAh Polymer. - Bluetooth Battery Life: About 6 Days. - Charging Time: About 3 Hours. - Standby Time: About 15 Days. - Compatible with: 5V/1A Charger (Not included). - Charging method: Magnetic Suction Point Type. Activity tracking function - Wireless Calls. - Rotary Encoder. - Sports modes. - Sleep Monitoring. - Heart Rate Test. - Blood Pressure/Sp02 Test. - Training. - Weather. - Messages Reminder. - Remote Shutter. - Music Player Control. - Move Reminder. - Remind to Drink. - Other Features: Include Stopwatch, Alarm, Timer, Brightness Adjustment, Mute On/off, Theater Mode, Factory Reset, Power Off and About. - Supports Multiple Languages. Watch & Band - Band Material: 1 × Silicone / 1 × Stainless Steel. - Band Changes: Yes. - Color (Watch & Band): Watch (Silver), Band (Stainless Silver / Silicone Black).