The HTC Radar 4G is T-Mobile's first Windows Phone 7.5 Mango smartphone. This is a second generation Windows Phone with middle of the road specs and a price to match. It's $99 with contract and it has a 1GHz second gen Qualcomm Snapdragon CPU with 8 gigs of storage and HSPA+ 4G. The phone has a front video chat camera that works with Tango and a rear 5 megapixel camera with a fast f2.2 lens with an illuminated backlit sensor.
Though the Radar isn't expensive by smartphone standards, it gets HTC's high end unibody aluminum treatment, and the phone looks like a miniature HTC Flyer. The color scheme (white and silver) looks good and sets the Flyer apart from the hoard of uniform black rectangular slabs on the market. The drawback of the unibody design is that the 1520 mAh Lithium Ion battery isn't removable. You get access to the SIM card slot and nothing more when removing the small plastic endcap that also houses antennas.
despite the not class leading 1GHz clock speed. The second gen Samsung Focus Flash, Focus S and HTC Titan get 1.4 to 1.5GHz Snapdragon CPUs. The real gotcha is the 8 gigs of internal storage with 6.5 gigs free. If you're a music fanatic ready to go to town with your fresh new Zune pass, or a Mac user looking to sync lots of iTunes music via Windows Phone 7 Connector, keep this in mind. With the exception of the last generation Samsung Focus, there's no microSD expansion card slot in Windows Phones (due to file system and media DRM management complexities). That means you can't expand the Radar 4G's storage.
Here's our HTC Radar 4G video review. Our full review will be out in the coming days.