Android OS Supported: HUION HS610 is compatible with Android OS 6.0 or later. You can easily connect your Android devices to the drawing pad with OTG adapter. With 8mm thickness and 600g weight, HS610 is lightweight and easy-to-carry, making it a great partner for drawing at anytime and anywhere with your phone Multifunctional Touch Ring: HS610 can offer you an ultimate smooth drawing experience via the newly-design touch ring. It can help you easily zoom in or out for your canvas, adjust your brush and scroll the page. You can also customize the 12 press keys as you need to further enhance productivity