The Xiaomi Redmi Pro was announced in 2016, July. Released 2016, August With 5.5 inches, 83.4 cm2 (~72.2% screen-to-body ratio) AMOLED, Powered by Mediatek MT6797T Helio X25 (20 nm) - High & Exclusive editionsMediatek MT6797 Helio X20 (20 nm) - Standard edition and running Android 6.0 (Marshmallow), MIUI 10, the device delivered smooth performance and multitasking capabilities. while the Li-Ion 4050 mAh, non-removable ensured long-lasting usage.