Please Read before Buying Please note that the sensitivity of the pencil depends on the signal reflection and reception from the screen. If your device is old, it may affect the sensitivity of the pencil and the stroke delay It's suitable for most Android & IOS system capacitive screen phones and tablets, as precise and smooth as using a real pencil. Such as for ALL iPad, for Xiaomi Tablet, for Samsung Tablet and phone, for iPhone ...But only for Huawei Honor series, but for other Huawei tablets. Use the stylus correctly When the app in the sliding state, the stylus only can slide the screen, if you need to write, please make sure the app is in the writting state as the picture shows Compatible with IOS/Android system capacitive screen devices, smart phones/tablets.