Smartwatches place calls in two common ways:

• Bluetooth-tethered: The watch connects to your phone and uses your phone’s plan. No SIM in the watch is needed, but your phone generally has to be nearby and powered on.
• Cellular-enabled: The watch has its own SIM or eSIM and plan, so it can call and text on its own. Look for 4G LTE support and the correct SIM size (often nano SIM).

Each option has trade-offs. Cellular models offer more independence but may use more battery and require a separate plan. Check the watch’s specs for network bands, confirm coverage with your carrier, and review the manufacturer’s setup steps before choosing.

Look for models labeled cellular, 4G LTE, or standalone. Many kids’ GPS smartwatches accept a nano SIM, while some newer wearables use an eSIM instead of a physical card. Fitness trackers or Bluetooth-only smartwatches generally don’t take SIM cards.

• Check the specs: SIM size, supported LTE bands, and whether the device is unlocked.
• Plan type: You’ll typically need talk, text, and data for calling, messaging, and GPS features.
• Coverage: Verify network compatibility and local signal strength with your carrier.

On Walmart.com, you can find prepaid SIM starter kits and cellular-capable wearables; always confirm compatibility in the product details and the manufacturer’s manual.

Activation can vary by device and carrier, but these steps often help:

1. Confirm compatibility: The watch should be cellular-enabled, unlocked, and support your carrier’s 4G LTE bands.
2. Choose a plan: Select a prepaid plan with talk, text, and data suitable for wearables.
3. Insert the SIM: Use the correct size (commonly nano SIM), power on the watch, and follow on-screen prompts.
4. Set APN: If data isn’t working, enter the carrier’s APN in the watch or companion app.
5. Test services: Place a call, send a message, and check GPS updating.

Results can vary by model and location. Keep the device IMEI handy, review the manufacturer’s guide, and contact your carrier or Walmart Customer Care if you need help.

Data issues can stem from several factors. Try the following:

• Plan status: Confirm your plan is active and includes data for wearables.
• Signal and bands: Check local coverage and ensure the watch supports the carrier’s 4G LTE bands.
• APN settings: Enter the correct APN from your carrier and toggle mobile data on.
• SIM and slot: Use the right size (often nano SIM), reseat it carefully, and inspect for damage.
• Device settings: Turn off Airplane Mode, enable VoLTE if required, and restart the watch.
• Cross-test: Try the SIM in a phone to verify service.

If issues persist, review the device manual and contact your carrier for configuration details.

Kids’ GPS smartwatches typically use GPS plus cellular data to share location with a companion app. With an active plan, features like live location, geo-fence alerts, SOS, and voice or video messaging may be available, depending on the model.

• Accuracy: Can vary by environment (indoors, tall buildings, or rural areas).
• Data usage: Location updates require data; update frequency can impact battery life.
• Privacy: Manage app permissions, share access only with trusted caregivers, and review settings regularly.
• Setup: Follow the manufacturer’s instructions and verify network coverage for reliable updates.

Features differ by device and carrier. Review the product details and plan requirements before you buy.