If you want to know whether your Android phone is 3G or 4G capable, you can check the network settings of your device. Follow these steps:
1. Open the Settings app on your Android phone.
2. Tap on "Mobile networks" or "Wireless & Networks."
3. Look for the "Network mode," "Preferred network type," or "Cellular network" option and tap on it.
4. If you see "LTE" or "4G" listed among the network modes, your phone is 4G capable. If not, it's likely a 3G device.
It's important to note that you'll need to be in an area with 4G coverage to fully utilize the faster speeds of a 4G phone. Additionally, some carriers may require a specific plan or SIM card to access 4G networks.