You get many great features with a smart watch. It has a screen size of 1.3 inches.
From Amazon
XPLORA XGO 3 - Watch Phone for children 4G - Calls, Messages, Kids School Mode, SOS function, GPS Location, Camera and Pedometer - Includes 2 Year Warranty (BLACK)
Comet
Xplora XGO3 3.3 cm (1.3") TFT Digital 240 x 240 pixels Touchscreen 4G Blue