Model T1 from Topwise uses the Android 7 operating system, which offers protection against security vulnerabilities discovered in Android 5.0 devices. The handheld T1 supports 4G, 3G, 2G, Wi-Fi, and Bluetooth 4.2 network connectivity. It is certified for PCI 5.x, EMV Level 1 and Level 2, Visa PayWave, Mastercard Paypass, CE, ROHS, and UnionPay. The T1’s capacitive touchscreen (720 x 1280) measures 5.0 inches on the diagonal. There is a high-capacity polymer rechargeable battery. Average failure-free working time is 50,000 hours. Security includes support for 3DES, ANSIX9.9, and ANS9.8 alg...