Yes, a phone can be tracked without a SIM card, but with significant limitations.
How it Works:
- Primary Method: GPS. Your phone’s GPS receiver gets signals directly from satellites. This is independent of a SIM card or cellular network, allowing the phone to determine its own location. However, to transmit that location data to someone else (like to a monitoring app’s dashboard), it needs an internet connection.
- Transmission Methods Without a SIM:
- Wi-Fi Connection: If the phone can connect to any Wi-Fi network (home, public, etc.), a monitoring app can send its GPS location over the internet.
- Offline Storage: Some apps (like mSpy) can record location data and send it later once the phone connects to Wi-Fi.
Pros:
- Location via GPS is possible if the phone is on and GPS is enabled.
- Works over Wi-Fi for data transmission.
Cons:
- No Real-Time Cellular Tracking: You cannot track it via cell tower triangulation, and there is no live tracking when it’s away from Wi-Fi.
- Requires Pre-Installed App: A tracking/monitoring app must be installed and configured on the target device before the SIM card is removed.
- Limited Functionality: Many features (like SMS or call monitoring) that rely on cellular networks will not work.
Bottom Line: For basic location tracking, a phone without a SIM can work if it has GPS and periodic Wi-Fi access, but it is far less reliable than a phone with an active cellular connection.