1.39" IPS Touch ScreenThe large screen has excellent color saturation, restoration ability and higher contrast. The 360*360 resolution brings a higher-definition visual experience and clearly shows every detail. | Upgraded 8762D ChipHigh-performance 8762D chips provide more efficient and accurate services. Cell phone bluetooth 5.0,Data storage bluetooth 4.0 ;TWS Earbuds chip is 8926B2; Heart rate chip is HX3605. | 250mAh Large Capacity BatterySuper large battery capacity to meet your daily use. The standby time is as long as 8-12 days after fully charged. The main body can charge the earphone for 2-3 cycles time. |