Access the Settings then System Menu on your watch. Tap About then System Updates to see if you are running the latest version. If your operating system is running on the latest, your watch will indicated this saying it is up-to-date and if not, it will initiate an update.
Note that when pairing your CZ smart touchscreen smartwatch if there is a firmware update once the watch is paired the firmware with update over WI-FI (be sure it is on WI-FI) over the next several hours. Gen2 Touchscreen has 1 firmware update that includes new dials and the CZ Smart YouQ Wellness application loads to the watch with and OTA update.