On LTE, the new Moto X is noticeably trailing behind the rest of the competition. Here we see that battery life is just behind the LG G2, but behind all recent Apple iPhones and just about every other Android high-end flagship phone launched in 2014. While the new Moto X has definitely improved over the previous Moto X, it seems that Motorola has used the newer AMOLED panel and lower power SoC to avoid using a significantly larger battery.
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Overall, its hard to really say much in the way of praise for battery life. While its definitely surprising just how much battery life Motorola has achieved given the size of the battery and display, I suspect that Motorola found themselves in an uncomfortable situation as they tried to deliver a bigger display while keeping the phone easy to use with one hand. I suspect that all things considered, Motorola would have been better off if they went for a smaller display and the smaller height and width that would logically follow. Its also not that the battery life is bad in an absolute sense, but it isnt as good as its peers. Motorola is likely tracking closely to their estimated 24 hours of mixed usage. The use of Moto Display will also go a long way to reduce the time with the AP and display on.
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Unfortunately, its not clear where this lack of attention to color accuracy comes from. In discussions with Andrei it's clearly possible to calibrate the AMOLED panel from the GS4 quite accurately, and there's no real technical limitation for AMOLED to lack good calibration. However, judging by the relatively low peak brightness there are other issues as this could affect Motorola's performance in battery life tests. This seems to suggest that Motorola is unable to access the latest generation of AMOLED panels from Samsung Display.
This would be a rather startling thought, as it means that no matter what Motorola does to improve their implementation of Samsungs AMOLED displays, they will always be behind the curve. If it becomes clear that Samsungs AMOLED is the best display from a user-facing standpoint, every other OEM will face significant barriers in competition as they would be unable to access the latest generation AMOLED panels. The real solution here is for other display manufacturers such as LG, JDI, and AUO Optronics to catch up.
At any rate, the display of the new Moto X seems to be relatively poor compared to what we see in the Galaxy S5 LTE-A (and likely the Note 4), along with the iPhone 5s, Nexus 5, and One (M7). While its impossible to ignore the power advantage of AMOLED when implementing functions like Moto Display, the relatively low peak brightness and poor color accuracy are concerning.
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Unfortunately, after all of this we are left in a bit of a tough position. Fundamentally, the new Moto X doesnt change the market. It simply isnt the best Android phone on the market. Regrettably, there are too many issues to make this a clearly superior smartphone. The poor camera, battery life, and display when compared to the competition are three issues that need improvement to be competitive.