Smart Watch Model X9 Ultra Special Black Color with Shopper AMOLED Screen Size 2.02 Together Two Black Bands Unique Smart Watch X9 Ultra Works on All Android and iPhone Smart Watch X9 Ultra - 49mm - 2.2 Inch - Black Model Name Ultra Style Fashion Compatible Devices SmartPhone Band Material Type Silicone Operating System Android iOS Connectivity Technology USB Charger Strap Contains On screen size 2. 2 inch high resolution and 320 x 385 pixels, giving you a wonderful visual experience and pleasant vision of different interfaces. The smart touch feature allows you to seamlessly control the various functions of the watch, such as navigating menus, answering calls and tracking messages. Allows you to monitor your health and fitness and track your workout performance. X9 Ultra supports many smart features such as heart rate monitoring, blood pressure measurement, blood oxygen level monitoring. Built-in GPS technology ensures you stay on track and find locations with high accuracy. It has an intelligent AI assistant function that you can easily talk to to execute commands and control the clock with voice.