Yes, the tracker requires a SIM card, which is already built into the tracker. All you need is a subscription.

The tracker's SIM card connects to networks worldwide, offering unlimited range in over 175 countries. All network charges are already covered by the subscription. No additional costs.

The subscription must be purchased directly from the Tractive website: https://tractive.com/de....

The countries in which the tracker works can also be specified on the website. Tractive GPS tracker for dogs and cats with activity tracking | Tractive: https://tractive.com/de