The Lenovo Vibe S1 was announced in 2015, September. Released 2015, November With 5.0 inches, 68.9 cm2 (~67.9% screen-to-body ratio) IPS LCD, Powered by Mediatek MT6752 (28 nm) and running Android 5.0 (Lollipop), upgradable to 6.0 (Marshmallow), the device delivered smooth performance and multitasking capabilities. Its 13 MP, f/2.2, PDAF rear camera captured crisp photos and 1080p@30fps video, while the Li-Po 2420 mAh, non-removable ensured long-lasting usage.