The Asus Zenfone 4 Max Plus ZC554KL was announced in 2017, August With 5.5 inches, 83.4 cm2 (~70.4% screen-to-body ratio) IPS LCD, Powered by Qualcomm MSM8917 Snapdragon 425 (28 nm) and running Android 7 (Nougat), ZenUI 4, the device delivered smooth performance and multitasking capabilities. while the Li-Po 5000 mAh, non-removable ensured long-lasting usage.