Smart Watch-Screen Size:1.54” TFT HD Screen, RAM/ ROM:512 MB/4GB, Touch Screen :C+F Highly Sensitive Capacity Touch Screen, Screen Craft:Full Lamination, TP Material:Curved Gorilla Glass, Bluetooth:V4.0, Battery:320mAh high capacity (HP) polymer lithium ion battery,Watch/Strap:50.5mm*38mm10.8mm/225mm,CPU:Xburst 1.2 GHz, 300MHZ, dual core, DPI:254PPI, Sensor:9-Axis Acceleration Transducer, Heart Rate Monitor:New JRC Heart rate sensor, MIC:NeoMEMS electrect microphone, Waterproof:IP65, Standby:7 days, Usage time:3 days,Material Body/Strap:Zinc Alloy, PC Plastic/ Stainless Steel.