Review: LG G Flex 2
Screen
The Flex 2's 5.5-inch panel features full HD resolution. Some of today's flagships — including LG's own G4 — are headed toward quad HD resolution, but the full-HD screen on the Flex 2 looks fantastic. It's razor sharp, incredibly bright, and depicts accurate color. I like it a lot, and it's amazing that it's flexible, too. There is a downside: smudges. I haven't seen a display collect this much fingerprint grime in years. There doesn't seem to be a fingerprint-proof coating. This really mucks up outdoor viewability. Otherwise, the screen is great.
Signal
The Flex 2 did a great job on Sprint's network. It performed above par when compared to most phones I've tested on Sprint lately. It remained connected to the network no matter where I took it around the greater New York City area. It latched onto Sprint's LTE network the majority of the time I used the phone and only dropped to 3G in the remotest regions under the worst signal conditions. Where Sprint Spark was available, the Flex 2 showed a strong connection and fast data speeds. In poor LTE coverage zones, the phone still managed to load web sites in short order. The phone did not miss a call, nor did it drop a call during my test period.
Sound
I was generally pleased with the Flex 2's call quality, though it doesn't quite match that of the Samsung Galaxy S6 and S6 Edge. The earpiece produces plenty of volume and I was able to hear calls easily in noisy spaces. Calls were a bit choppy, though, thanks to some distortion in the earpiece speaker. The distortion goes away if you turn the volume down, but then you run the risk of not hearing your conversations at all. The speakerphone had similar performance. It offered plenty of volume, but middling clarity. Conversely, people I spoke to through the Flex 2 said I sounded excellent. The ringers and alert tones had plenty of power, and the vibrate alert was more than enough to get my attention.
Battery
The 3,000mAh battery packed into the Flex 2's frame provides plenty of juice to get through the day. In most instances, the Flex 2 easily maintained a charge from breakfast to bedtime without issue. The Flex 2 was attached to Sprint's LTE network the majority of the time I spent testing it, and I made sure the screen brightness was up and the Bluetooth, WiFi, and GPS radios were on. Despite heavy usage, I never managed to kill the battery entirely in a single day; it often took 36 hours or longer.
Unlike its competitors, LG's battery saver tool is rather bare bones. You can turn on the battery saver once the device reaches 15% battery, but it's not clear what it does to conserve power (other than dim the screen a bit.)