You can share your 3G with other devices through WiFi.
Learn how to share 3G as WiFi on Motorola Moto G5S Plus with the following steps:
Step 1: Access settings, choose to use it as Mobile Hotspot.

Step 2: Activate the feature.
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Step 3: Customize the WiFi sharing name and password.
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Congratulations! The setup is now complete. Wishing you all success.