While the watch can connect to Wi-Fi, a SIM card is required for device registration, most core features, and for the watch to function when your child is away from home.
- For U.S. customers, Angel Watch™ supports AT&T and T-Mobile.
- For UK customers, Angel Watch™ supports EE.
- International customers may use most GSM-compatible 4G networks worldwide. Please visit our Cellular Networks & SIM Cards section for more details and compatibility information.
With an active SIM card, the watch will have its own phone number and data service, allowing it to connect directly to your Angel Watch™ app from virtually any location. This lets you view your child’s location, place, and receive calls, send messages, and ensure your child always has a reliable way to reach you.
You can activate your SIM card on our Activation Page here.
Jan 16, 2026