Make no mistake about it, the Titan is a giant. It's packing a 4.7-inch Super LCD screen that we're pretty sure should qualify it as a tablet rather than a phone -- we're not too sure where the line is drawn there.
Beneath that massive screen is a meaty 1.5GHz Snapdragon processor, which is the same as the one found in HTC's Flyer tablet. Navigation felt very snappy in our hands-on test and we expect it to deal with power-hungry apps with aplomb.
The screen itself is very bright and clear with a good viewing angle, so it's great if you have a couple of mates crowding round to watch a video with you. It's certainly good enough to display the photos taken by the Titan's 8-megapixel camera in great clarity.
Thankfully, that massive screen size hasn't made this phone uncomfortably big. At 9.9mm thick, it's slim enough to slide into even the skinniest of jeans.
The HTC Radar is a more reserved affair sporting only a 3.8-inch screen. We were still impressed by its clarity though, with icons and text smartly displayed.A 1GHz processor provides the juice for the Radar -- it isn't as meaty as other smart phones, but seemed to do the job adequately in our hands-on.
Both these phones are running Windows Phone Mango, which is still definitely a rank outsider compared to Apple's iOS and the ever-growing Android, but with more and more phones taking on Microsoft's OS, it may not be too long before the balance is evened out.
Make sure to check out our full previews of both phones and click through the gallery of official pictures above.