The Coolpad Cool S1 was announced in 2016, December. Released 2017, January With 5.5 inches, 83.4 cm2 (~73.7% screen-to-body ratio) IPS LCD, Powered by Qualcomm MSM8996 Snapdragon 821 (14 nm) and running Android 6.0.1 (Marshmallow), eUI 5.8, the device delivered smooth performance and multitasking capabilities. Its 16 MP, f/2.0, PDAF rear camera captured crisp photos and Yes video, while the Li-Po 4070 mAh, non-removable ensured long-lasting usage.