Review: Pantech Flex for AT&T
The Flex has a 4.3-inch Super AMOLED qHD display. That means 960 x 540 pixels. It's perhaps one of the best displays offered by Pantech, though the PenTile pixel arrangement might bother some people. It's sharp, but you can still see pixels. The colors look particularly good, though, and the viewing angle is extremely wide. I found it to be just barely usable outside. I had to set the brightness up all the way in order to take photos under bright sunshine.Signal
Tested around the metro NYC area, the Flex performed well. It regularly showed three or four bars of coverage and only dropped down to one bar under the worst network conditions. The Flex's signal indicator mirrored that of other AT&T devices used in the same spot. The Flex never lost hold of AT&T's network during my tests. I was able to connect all voice calls on the first dial, though the Flex dropped one call while I was using it (albeit traveling in a car). Data speeds were good for the most part, though not as breakneck fast as I've seen on other AT&T LTE devices.Sound
The Flex is an OK voice phone, though definitely not the best I've tested. The majority of calls were clear of noise and static, but I heard a robotic echo from time to time that was unappealing. At maximum volume, the Flex is more than capable at making sure you hear the conversation. It's loud enough for use in crowded coffee shops and bustling food courts. The speakerphone produces plenty of volume, too, though the echo problem became more prominent. The ringers and alerts are exceptionally loud, but the vibrate alert was a bit weak.
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The Flex's battery will last most of a single day, but not much more than that. It was gasping for breath several days in a row at 9PM when it dropped below 20%. I didn't use the Flex *that* heavily. In fact, I'd say I took it easy on the Flex, which is why I was surprised the battery was giving out before I went to bed. Using the Flex under LTE coverage has a noticeable impact on battery life. You might not make it past dinner time. Charge every night, and pay attention during the day.