My Approach s60 screen has frozen.

A soft reset should allow the device to operate properly. Please hold the middle button down on the watch for up to 20 seconds or until it shuts off. Once off, press the same button to power it back on. It should function properly.

Please make sure the software on your watch is up to date using Garmin Express. This will ensure the watch works as optimally as possible and should prevent freezing issues.