The watch requires a plan with an active mobile network, as calls and text messages are among the main functions. According to official information, a data-only plan without calling and texting functions is not planned, as communication takes place via the mobile network and not via internet services such as WhatsApp or FaceTime.

It is not certain whether a pure data volume subscription such as the Digital Republic Flat Rate 1 will work, as the watch is designed for classic telephony and SMS and these functions are mandatory for use. The official resources explicitly recommend a plan with telephony and SMS.

I'm not entirely sure if a data-only plan is sufficient. The information I have does not fully cover this situation. For further clarification, I recommend consulting the supplier or the Community.