You can test your iPhone internet connection speed using 4G Speed- Internet Speed Test.
4G Speed was designed to measure the following connection types: Wi-Fi, 4G, 3G, GPRS and even EDGE.
You can also test your internet speed from all the cellphones which supports HTML - Nokia , Samsung , Sonyericson , Motorola and others.
What’s New in this Version
- Fixed landscape bug
- Updated accuracy of results
- Redesigned for HTML5 compliance
- Improved graphics quality for iOS4
- Add fullscreen standalone interface support
Mobile Internet Speed Test Link