This smart watch is compatible with most iOS 8.0 & Android 4.4 or higher smart phones (Not for PC or tablet). But the data is just used for reference. 1.91″ Touch Screen and DIY Dials: With 1.91″ HD large color screen and full screen touch and hand sliding, the smart watch is designed with clear and bright display, providing you with high-quality touch and visual experience. Leia Mais