T-Echo Lite Basic Module 4-inch Capacitive Touch TFT LCD

4-inch Capacitive Touch TFT LCD (Support Touch Function): Color depth 565

5V Dimensions 90 x 60 x 9

While it's not exactly a smartphone

4 GHz Wi-Fi & Bluetooth5 (LE) Development  Arduino

Touch Button

T-Echo Lite Basic Module 4-inch Capacitive Touch TFT LCDT Echo Lite is the Lite version of T Echo, the Lora+NRF52840+e paper combination is the most low power combination solution verified so far, it can be used as a Lora node adapted to Meshtastic firmware. Specifications MC NRF52840 Flash 1MB RAM 256kB Programming Platform Arduino IDE, VS Code Wireless Connectivity Bluetooth 5, Thread, ANT, Bluetooth Mesh,802. 15. 4, Zigbee, 2. 4 GHz proprietary Battery Measurement Control IO 0. 31; ADC: IO 0. 2 Tech