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Question:
You can use the hotspot feature, which is available on almost all smartphones, to connect other devices to the Internet using the cellular tower system. The hotspot feature is often activated in the phone's settings. You can physically connect via USB by connecting a cable between your laptop and the phone, or you can connect wirelessly over Wi-Fi, or Bluetooth (the device will show a wireless password). The drawback of doing this is that it quickly consumes data, which might get expensive if your cellular plan doesn't include unlimited data.