The GPS positioning on the Movetime Family Watch MT42X cannot be fully utilised without a SIM card because the watch requires a SIM card to connect to the internet and communicate for tracking and telephony functions. Without a SIM card, the watch cannot operate these features properly. Unlike some devices that may offer limited GPS functionality without a SIM, this watch needs a full mobile phone subscription with a SIM card to use GPS tracking effectively.

Therefore, it is not possible to use GPS positioning on this watch without inserting a SIM card, as the device depends on cellular connectivity for real-time location tracking.