There’s a good reason to upgrade from 3G (third generation) to 4G (fourth generation) technology. Changes to transmission / reception technology allows very high speeds on 4G. It also provides higher quality voice transmission.
Here’s how to find out if your phone is only 3G compatible.
3. Click on your device or one that most closely matches it. You’ll see information about it
4. Find the NETWORK Technology section and expand it by clicking Expand.
5. If you only see 2G bands and 3G bands, then you know that your device doesn’t run on 4G. It’s time to upgrade.