4G wireless networks offer data transfer speeds many times faster than 3G. These are the most popular 4G enabled cell phones on the market today.
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Samsung Galaxy S II 4G Android Phone (AT&T)
Samsung Galaxy S II 4G Android Phone (AT&T)
The Samsung Galaxy S II is an ultra thin Android smartphone with a dual core 1.2 GHz processor. It has a 4.3 inch Super AMOLED Plus multi-touch display, and an 8 megapixel camera with Full HD 1080p video capture.
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Motorola DROID BIONIC 4G Android Phone (Verizon Wireless)
Motorola DROID BIONIC 4G Android Phone (Verizon Wireless)
The Motorola Droid BIONIC is equipped with a 1 GHz dual core processor. The Firefox browser supports multiple tabs. This phone has a full gigabyte of PC grade RAM and a 4.3 inch HD 24 bit display.
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Motorola Atrix 4G Android Phone (AT&T)
Motorola Atrix 4G Android Phone (AT&T)
The Motorola Atrix runs Android 2.2 on its 1 GHz NVIDIA dual core processor. It has a 4-inch HD touchscreen, a 5 megapixel camera and can capture video in 720p HD. It offers up to 9 hours of talk time per charge.
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Samsung Epic Touch 4G Android Phone (Sprint)
Samsung Epic Touch 4G Android Phone (Sprint)
The Samsung Epic Touch is equipped with a 1.2 GHz dual core processor. The large 4.52 inch touch screen uses Super AMOLED Plus technology. The 8 megapixel camera shoots 1080p HD video. The 16 GB internal memory can be expanded up to 32 GB using the micro SD slot.
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HTC ThunderBolt 4G Android Phone (Verizon Wireless)
HTC ThunderBolt 4G Android Phone (Verizon Wireless)
The HTC ThunderBolt is powered by a 1 GHz Snapdragon processor and has a 4.3 inch Super LCD multi-touch display. It runs the Android 2.2 operating system with Flash 10.1 support. It has 8 GB of internal memory and comes with a 32 GB microSD memory card.

How do these phones stand up to the I Phone 4s and I phone 5.