Parameters: Chipset: Bluetrum AB5681 System Compatibility: Android 5.0 and above; iOS 10.0 and above Flash Memory: 128M Screen: AMOLED Size: 1.43-inch Resolution: 466 x 466 Touch IC: CST820 Connection Parameters: Bluetooth Calling: Bluetrum AB5681 Bluetooth: BLE 5.4 WiFi: None NFC: Yes Battery:...