Why is 4G fast?

Latency. Download and upload speeds aren’t the only things that have been improved because 4G also has a better response time than 3G – due to lower “latency”. This means that a device connected to a 4G mobile network will get a quicker response to a request than the same device connected to a 3G mobile network.

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Why is my 4G worse than my 3G?

Basically, your device is competing with many other LTE devices. There are probably far fewer customers on the 3G frequency bands. Another possibility is you’re in a location where the LTE frequency has less penetration. When it comes to RF, lower frequencies have better penetration indoors.

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