The difference between and 3g and 4g map coverage is the amount of memory that each contain. Obviously, 4g contains a lot more memory. 1g is in fact, a large difference.
A 3g coverage map would allow you to see an area that the 3g network covers. This is an approximation. You can visit http://www.wireless.att.com/coverageviewer/#?type=voice to see a map of their 3g network.
To find a map of 3g coverage in the United Kingdom, one may want to look at the mobile coverage web page. They have listings that can help you see where there is 3g coverage.
The 3G has 3G connection, and I believe it is a little faster too.
3G means the download speeds can reach up to 3mb per second. 4G means the speeds can be 100 times faster than 3G. 4g speeds are targeted to be in the 100Mb per second to 1 Gb per second range.
3G coverage on a cell phone is the internet that your phone runs off of. Almost all cell phones offer 3G coverage. But nowadays, most smart phones now have 4G coverage.
All major cell services like ATT, Sprint, Verizon, and T-Mobile offer 3G coverage. There are some smaller companies that do not offer 3G coverage but some companies do not have smartphones so 3G coverage is unnecessary.
500 to 600 meter in which better coverage
2g is 2nd generation 3g is 3rd generation
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When you go from a 4G coverage area to a 3G area with HTC Inspire 4G, the phone will automatically try to switch to the 3G network. However, sometimes the 3G coverage in this transition can be of a really low signal. What you need to do is reboot your phone to fully refresh its 3G coverage. This is how you can get 4 bars or more in your 3G signal. It's a small price to pay especially if you live in a 4G area, considering how fast its download and upload speeds are. With this small tip, you can get better 3G coverage on your HTC Inspire 4G.
The iPhone 2G is much slower than the iPhone 3G.