Samsung Galaxy S4 mini Leaked Details The Samsung Galaxy S4 Mini is a Galaxy S4 look-alike with a smaller screen and less hardware muscle. Android (4.2.2) TouchWiz Nature UX 2.0 UI 4.3 inches (Physical size) 540 x 960 pixels (Resolution) Capacitive, Multi-touch (Touchscreen) Exynos 5210 (System chip) Dual core, 1600 MHz (Processor) Scheduled release: June 2013