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Screen

The Diamond's full VGA screen looks fantastic. For a phone this small to have such a high resoution display is unusual. The 3D animations of the TouchFLO UI are smooth, vibrant and colorful. The screen is plenty bright, and is readable both outdoors and in. Smudges may make it more difficult to see outside, but that's nothing unique to the Diamond. Even in full sunlight (without smudges) we were able to make out information on the screen.

Signal

The HTC performed on par with other Sprint phones at collecting signal. In my home, it held onto two bars. That's pretty much what every Sprint phone rates in my home. Taking it down into my basement, signal strength waffled between no bars and 1 bar. This, also, is typical for a Sprint phone in my home. Taking the Diamond out and driving around with it was the only way to find full strength signals. In areas that I know have good Sprint signal, the Diamond had 4 bars. In areas that I know have poor coverage, the Diamond held onto at least one bar.

During my time with the phone, it did not drop any calls. I also didn't miss any calls. The indicator at the top tells you when you are being covered by EVDO or by 1X data.

Sound

Sound quality of the Diamond was good. During calls, there was very little noise or sounds that are typically associated with cell phones. No hissing, crackling or static. The Diamond's earpiece volume can be made nice and loud. Though the sound starts to distort at the highest volume setting, we were able to hear callers in noisy environments such as coffee shops.

The ringer also produces some serious decibels. At its highest setting, the Diamond can be heard from several rooms away easily. The sound doesn't distort, either, which is nice. The vibration alert is moderately strong, and we were able to feel it even when wearing loose-fitting jeans.

Battery

I used the Diamond heavily during testing. I used the web a lot, I took a lot of pictures, I listened to a lot of music, and I sent a whole bunch of emails. Even with all that activity, the Diamond lasted about 2.75 days on a single charge. With less use, I was able to get closer to 4 days of battery life. As with many phones, battery life will always vary based on how you use the phone.

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