Aside from the usual messaging features, you also get e-mail with Microsoft Exchange support. With your personal e-mail, you're free to use your own POP or IMAP server settings. For Exchange support, just enter in your Exchange server URL and login details, and you're good to go. If you like, the Gravity T also lets you send and receive audio postcards, which are audio messages attached to an image of your choice. The e-mail in-box interface is similar to other Gravity phones.
Since the Gravity T is blessed with a touch screen, it seems fitting that it comes with a full HTML browser to take advantage of the large screen real estate. The Gravity T uses T-Mobile's proprietary web2go browser, so it's rather simplified for a mobile browser. You get the usual location bar and bookmarks, though, which is enough for us. You can also jump to full screen mode, copy URL to a message, and Google search from the homepage. To zoom in and out of Web pages, simply hold down your finger on the screen and move up to zoom in and move down to zoom out. This is far easier to do than using an onscreen magnifying glass.
The Gravity T comes with a fairly rudimentary media player, but it works well enough for simple music playback. The interface is fairly simple to understand; you can organize your playlists on the go, and you can set songs on repeat or shuffle. You load the songs onto the device via microSD card--the phone takes up to 16GB--and you can then use the songs as ringtones or alert sounds.
We're a little disappointed that the Gravity T is saddled with the same 2.0-megapixel camera as its predecessors, but we do think the photo quality is quite decent. Images look sharp enough and though the colors looked a bit dark, it was still pretty good. You can take pictures in four resolutions and three quality modes. Other settings include brightness, a self-timer, white balance, color effects, exposure metering, a night mode, geotagging, and three shutter sounds plus a silent option. You also get single, continuous, smile shot, mosaic, and panorama shooting modes. Beyond the still camera, you also get a camcorder, which can record clips in 176x144-pixel resolution in either normal length or shortened for MMS.
The Gravity T can be tweaked and customized to fit your personal style. You can do so by changing the wallpaper, screensavers, and sounds. The Gravity T comes with a few apps and game demos like Ms. Pac-Man, Millionaire 2010, Guitar Hero 5 Mobile, Google Maps, Bubble Bash 2, and Bejeweled, but you can always get more from the T-Mobile store.
We tested the Samsung Gravity T in San Francisco using T-Mobile's network. We experienced very good call quality--almost that of landline quality. We heard our callers very clearly, with hardly any distortion or background noise. The voice quality was also crisp and natural; not at all tinny or mechanical.
On the callers' end, they too were impressed with the quality. They reported very little noise or static, though there was the occasional buzz. Voice quality sounded good to them as well. For speakerphone calls, they said we sounded a bit more echo-heavy than usual, but otherwise the volume was good enough for them. On our end, we thought they sounded rather tinny and hollow, but that's to be expected from most cell phone speakers.
Similarly, audio quality for music playback didn't sound so hot via the speakers. The songs sounded rather flat and dull, although the volume was quite good. We would opt for headsets for a better listening experience.
We enjoyed good 3G speeds with the Gravity T. We loaded the CNET front door in very good 20 seconds, and had little buffering time when streaming videos from YouTube. The 3G signal was good too, especially in downtown San Francisco. That said, the video quality is noticeably pixelated and choppy, so it looked obviously down-sampled.
The Samsung Gravity T has a rated battery life of 6 hours talk time and 16 days standby time. It has a tested talk time of 6 hours and 29 minutes. According to the FCC, the Gravity T has a digital SAR of 0.38 watt per kilogram.