If there's one thing that's great about Windows Phone, it's the consistency of performance across different price tiers, and that's no different here.  Aaron pits the Nokia Lumia 710 against the HTC Radar 4G in a dogfight of epic T-Mobile proportions.  The Lumia 710 is Nokia's first Windows Phone to land in the US and offers a 1.4 GHz processor, 3.7-inch display with ClearBlack technology, 5-megapixel camera with 720p HD video recording, and a 1,300 mAh battery.  The HTC Radar 4G has a 1 GHz CPU, 3.8-inch display, 5-megapixel camera with 720p HD video recording, a front-facing camera, and a 1,520 mAh battery.  Both have Windows Phone 7.5, also known as Mango.

The Lumia 710 has the faster processor along with goodies like Nokia Drive pre-installed, but the Radar 4G has a bigger battery, larger display, and a front-facing camera.  Which one will win?  Part 1 of 2.