The Asus Zenfone 4 Selfie Pro ZD552KL was announced in 2017, August With 5.5 inches, 83.4 cm2 (~72.4% screen-to-body ratio) AMOLED, Powered by Qualcomm MSM8953 Snapdragon 625 (14 nm) and running Android 7 (Nougat), ZenUI 4, the device delivered smooth performance and multitasking capabilities. Its 16 MP, 26mm (wide), dual pixel PDAF rear camera captured crisp photos and 4K@30fps, 1080p@30/60fps, 720p@120fps video, while the Li-Ion 3000 mAh, non-removable ensured long-lasting usage.