Both HTC One A9 and Google Nexus 5X come with the latest iteration of the Android ecosystem - Android Marshmallow. Apart from that, they have a couple of similarities like the same display resolution. However, they do differ in a few perspectives. Here's a brief description for the comparison of the two devices.
HTC One A9 is more premium with its full metal uni body construction. Nexus 5X on the other ha do looks a little cheap because of its polycarbonate body. In today's race for slimmer smartphones, the HTC offering comes with a thickness of 7.26 mm. The Nexus is slightly thicker at 7.9 mm. The iPhone like design language on HTC One A9 makes it stand out against the ordinary looking Nexus 5X. The HTC is a bit on the heavier side with 143 grams weight in comparison to more lighter 136 grams Nexus 5X.
The HTC One A9 has a 5 inch AMOLED display. You get a 1080x1920 full HD resolution. Nexus 5X is a little bigger at 5.3 inch. It, however, has the same resolution as on the competitor. Though it is a small difference, the screen quality may make your decision tilt towards HTC One A9. The AMOLED display makes everything on the screen come crystal clear. But, if you want to have bigger display, you can go Nexus way. Even the pixel density is better on HTC One A9 at 441 ppi compared to the 423 ppi on Nexus 5X.
As for protection, Nexus 5X has a Gorilla Glass 3 while HTC goes ahead with a more stronger Gorilla Glass 4.
On the imaging front, there isn't a huge difference in terms of sensors. The Nexus 5X has a 12.3 MP camera, while the HTC One A9 sports a 13 MP snapper. Both of them come with the usual set of modes and settings. On the front HTC has a Ultrapixel camera and the Nexus comes with a 5 MP camera for your selfie needs.
HTC One A9 offers you Optical Image Stabilisation which the Nexus lacks. The OIS is helpful for those who can't have a steady hand while shooting pictures. But, the Nexus 5X compensates it with its 4K video recording capability at 2160p compared to the 1080p video recording on HTC One. As for the front camera, HTC's ultra pixel sensor lets in more light and can let you snap better selfies.
Hardware and Performance
The Nexus 5X is powered by a robust Qualcomm Snapdragon 808 hexacore processor. In fact, it is better performer with four cores running at 1.44 GHz and the other two at 1.82 GHz. On the contrary, HTC has a Snapdragon 817 octacore processor at the centre stage. It is a slow performer in comparison to the one on Nexus. The Nexus comes with two memory variants of 16 and 32 GB and an on board RAM of 2 GB. HTC One A9 too offers the same specs. Under practical scenario, both of them should be good performers. HTC, however, has memory expansion option upto 2 TB. The Nexus 5X lacks it which could be a disappointment for those who want more storage.
Both if them run on Android Marshmallow which is the latest from Android. There is not much of a difference except the manufacturer customisation. Nexus 5X offers you a pure unadulterated stock Android experience, while HTC has its HTC Sense skinning. The customisation is quite lag free and slick, but not as smoother as that on Nexus.
Moreover, being a Nexus device, the Nexus 5X is expected to get timely updates. You cannot guarantee the same on the HTC One A9.
Both of them carry finger print scanners. HTC One has it on the front and the Nexus 5X carries it on the rear. Though it would not make any difference, having it on the front makes it easy to locate.
The HTC One A9 is powered by a 2150 mAh battery, while Nexus has a slightly better powered 2700 mAh capacity. HTC has claimed a backup of 13 hours. Google or LG have not come up with backup status. Both of them have quick charging facility. Nexus 5X has a USB-C port.
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