Yes, the Geo tag will work anywhere it can connect to a cellular network. You might experience some gaps in updates if the device is in a ship's cargo hold at sea. However, once it reaches its destination and gets a cellular signal, it will start working normally again.
If you are interested to learn what is Geo tag, please check: What is a Geo tag?
If you are interested to learn how to use Geo tag, please check: How is the Geo tag used?
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