Today Google announced several new devices at their September 2015 launch event in San Francisco. By far the most anticipated devices were the two new Nexus phones that were announced. The first is the Nexus 5X made by LG, a successor to the Nexus 5 which was released nearly two years ago in late 2013. The second is the Nexus 6P, which is made by Huawei and replaces the existing Nexus 6 made by Motorola. Both of these phones bring significant improvements over their predecessors, particularly the Nexus 5X which can take advantage of all the advancements made in the past two years. Below you can see the specifications for each of these new devices along with the specs of their predecessors to see how they compare.

Google Nexus Smartphones
  LG Nexus 5 LG Nexus 5X Motorola Nexus 6 Huawei Nexus 6P
SoC Snapdragon 800 Snapdragon 808 Snapdragon 805 Snapdragon 810
GPU Adreno 330 Adreno 418 Adreno 420 Adreno 430
RAM 2GB LPDDR3 3GB LPDDR3 3GB LPDDR4
Display 5.0-inch 1920 x1080 IPS LCD 5.2-inch 1920 x 1080 IPS LCD 5.96-inch 2560 x 1440 AMOLED 5.7-inch 2560 x 1440 AMOLED
Wireless 1x1 802.11a/b/g/n/ac BT 4.2, NFC 2x2 802.11a/b/g/n/ac BT 4.2, NFC
Storage 16/32GB 32/64GB 32/64/128GB
I/O microUSB, 3.5mm audio USB Type-C, 3.5mm audio microUSB, 3.5mm audio USB Type-C, 3.5mm audio
Size / Mass 137.84 x 69.17 x 8.59mm, 130g 147.0 x 72.6 x 7.9 mm, 136 grams 159.26 x 82.98 x 10.06mm, 184g 159.3 x 77.8 x 7.3mm, 178 grams
Battery 2300 mAh (8.74Wh) 2700mAh (10.26Wh) 3220 mAh (12.236Wh) 3450mAh (13.11Wh)
Camera Rear Facing 8MP, 1/3.2", (Sony IMX179), F/2.4

Front Facing
1.3MP
Rear Facing
12.3MP with 1.55µm pixels, F/2.0

Front Facing
5MP, F/2.0, 1.4µm
Rear Facing 13MP, 1/3.06" (Sony IMX214), F/2.0.

Front Facing
2.1MP
Rear Facing
12.3MP with 1.55µm pixels, F/2.0

Front Facing
8MP, F/2.0, 1.4µm
SIM MicroSIM NanoSIM
Launch Price $349 (16GB) $379 (16GB) $649 (32GB) $499 (32GB)

The Nexus 5X is similar to the Nexus 5 in some ways but different in others. The chassis is noticably thinner, although the camera protrudes a fairly significant amount. The device has gotten larger in the other dimensions as a result of its larger display. However, it's not that much larger, and during my time with it I never felt that it was difficult to hold. The SoC moves from Qualcomm's Snapdragon 800 to Snapdragon 808, with the amount of RAM and internal NAND remaining the same. The battery capacity receives a significant bump, going from 8.74Wh to 10.26Wh. As for the camera, it's greatly improved. The Nexus 5 was never known for having an amazing camera, and with these new Nexus phones Google appears to have implemented a custom camera sensor. It's a 12.3MP sensor with 1.55 micron pixels, which roughly equates to a 1/2.3" sensor format.

The back of the Nexus 5X feels similar to the material used in the black Nexus 5. There's also a blue model and a white model, and while I didn't get to try the white model the blue version seemed to have the same texture as the black one. The design of the phone diverges significantly from the appearance of the Nexus 5. There's no more raised black ring around the camera, which makes the current Nexus 9 a bit of a loner as it's the only device left that has that design accent. The camera has also been moved to the center of the back, while on the Nexus 5 it was situated in the upper corner. Something worth noting is that the Nexus 5X and 6P both lack OIS, something that existed on their predecessors. Google's rationale is that you won't need long exposures as the camera sensor and pixel size is large enough to work well without it. Whether or not that is true remains to be seen, but OIS is still a useful feature and I think many users who are hoping to upgrade from an existing Nexus smartphone will be sad to see it gone.

On the software side, Android Marshmallow has a significantly improved camera app. Google has addressed many of the issues with menus and settings being difficult to find, and I also noticed that the camera preview frame rate on the Nexus 5X and 6P was much higher than on the Nexus 5 and 6.

Below the camera is Google's new fingerprint sensor. According to Google it can recognize a finger in under 600ms and has a very low error rate. It's difficult to say how it compares to other devices, and I wasn't able to get time to use it, so that will have to wait for when we actually review the Nexus 5X. The position on the back seems to be well chosen, and because it also will wake up the phone it doesn't suffer from the issue with some early rear-mounted fingerprint scanners which is that you had to wake the device first.

As for the front of the phone, there's not a whole lot to say. It's dominated by the display, with the earpiece on the top and a single speaker on the bottom and a front-facing camera to the left of the top speaker. The display itself seemed very good, and the color rendition looked similar to the Nexus 5 which is a good sign. While the Nexus 6P has an AMOLED display, the Nexus 5X is an IPS LCD.

Next is the Huawei-made Nexus 6P. Every aspect of the device feels like a large improvement over the Nexus 6. The first thing that stood out to me is the size. The Nexus 6 was extremely large and I couldn't hold it properly in really any circumstance. The Nexus 6P takes a step back to a 5.7" display, and the dimensions of the phone itself are not much larger than the iPhone 6s Plus despite the larger screen. Of course, you end up losing some real estate to the on screen buttons while the iPhone has a physical home button, but the point is that the phone is much easier to hold and use than the Nexus 6 was. The thickness also contributes to this as well, as the Nexus 6P is almost 3mm thinner than the Nexus 6.

Beyond the dimensions, the construction and feel of the phone is miles ahead of the Nexus 6. It's an aluminum unibody construction with a diamond cut edge edge, and the primarily plastic construction of the Nexus 6 isn't even remotely comparable. It's also fairly light considering the aluminum build and its size.

Something worth noting is that Google seems to have given Huawei and LG a lot of freedom when designing these new phones. The Nexus 5X doesn't share many visual characteristics with the 6P apart from the Nexus logo on the back and the fingerprint scanner. Rather than mounting the camera in the middle, Huawei has put it in the upper left corner like the old Nexus 5 did. The entire top of the back also has a slightly raised black bar. I'm honestly not a fan of this, as it just interrupts what should be a continuous aluminum surface.

Like the Nexus 5X, there's not a whole lot to say about the front of the Nexus 6P. It has stereo speakers, a front-facing camera, and a large display. The 6P bumps the front camera resolution up to 8MP from the 5X's 5MP, with a corresponding increase in sensor size to maintain the 1.4 micron pixel size. 

The display is the part of the Nexus 6P that I was most curious about. The Nexus 5 was notable for having a very accurate display despite its low price, and with the Nexus 7 also having accurate calibration it was hoped that Google would continue this across all of their products. Unfortunately, the Nexus 6 shipped with a very poorly calibrated AMOLED display with low brightness. When I first used the Nexus 6P I was very upset to see that it was clearly oversaturated like the Nexus 6, but there's more to the story this time around. In the Nexus 6P's developer settings there is a switch to enable an sRGB mode, and when this switch is turned on the Nexus 6P's display appears to have similar color rendition to the Nexus 5X which is a very good sign. While we'll need to get a review unit in order to analyze all of the display's attributes, I am hopeful that Google has recognized and fixed the issues with the Nexus 6's display in the Nexus 6P.

On the top of the Nexus 6P you'll find a 3.5mm audio jack, whereas you'll have to move to the bottom to find it on the Nexus 5X. However what you won't find on the bottom of either Nexus phone is a USB Micro-B port; Google has decided to be forward looking, and like the Chromebook Pixel the new Nexus smartphones use the USB Type-C connector for data and charging. While this will come with some pain in the short run as users won't be able to use existing USB Micro-B cords, I think the benefits are worth it.

Both new Nexus devices also come with the new Android Sensor Hub. This essentially refers to the different sensors that the devices include, and how they are now controlled and managed by a dedicated processor rather than the device's application processor. This is important for features like Doze in Android Marshmallow, as it allows Google to use minimal power to check the status of sensors and determine whether or not to go into deep sleep.

For me personally, the Nexus 5X is the most interesting of Google's two new Nexus phones. I always like to see what vendors can do when they're targeting a price far less than that of a flagship smartphone. The Nexus 6P definitely has its appeal too though, and we'll be running both of them through our standard suite of tests in order to see how they compare to the competition. If you're already convinced that you want the Nexus 5X or 6P you can pre-order them online now from the Google Store so long as you live in the US, UK, Canada, Japan, or Ireland. The Nexus 5X starts at $379 and comes in black, white, and blue, while the Nexus 6P starts at $499 and comes in standard aluminum, white, and black.

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  • anactoraaron - Tuesday, September 29, 2015 - link

    The 10n software finally fixed all the lag and unresponsiveness for the g4. It finally feels and functions as a good device. But yeah, initially it was quite bad. Reply
  • Speedfriend - Wednesday, September 30, 2015 - link

    "Galaxy S6 is a very good phone, except for the fact that the battery life is pretty horrible, which for many people makes it a no-go."

    Any idea why the battery life is bad? Mine seems to vary a lot, which is a pity because otherwise it is the best phone I have user used (and I have an iPhone 6 as well).
    Reply
  • lopri - Wednesday, September 30, 2015 - link

    FlyBri is probably repeating what she or he has heard 3rd hand. I have recently acquired the S6 myself because I realized how well made a phone it is while comparing it with the new iPhone 6s. (iPhone 6s is a wonderful phone, btw) Battery life of the S6 is where I expect it to be along with other S800/S801 devices. Reply
  • amdwilliam1985 - Tuesday, October 06, 2015 - link

    Totally agreed, couldn't have said it better myself.
    There are only 3 phones in the ~$400 range that I would consider, Nexus 5X, One Plus 2 and Moto X Pure.
    For personal preferences, Moto X Pure was out of the game from the gate(5.7" too big for me).
    So it's Nexus 5X vs One Plus 2, and I prefer 5X due to many reasons.

    Everything else in the price range, like S6 or G4 or G Flex2 on sale are not even considered. No thanks to TouchWiz or LG UI or MIUI or etc... This is 2015, if you can't make a phone smoother than Moto G 2014(~$100) then you should go home and eat banana, lol.
    Reply
  • danbob999 - Wednesday, September 30, 2015 - link

    You can't compare eBay prices with store prices. Try to return a defective phone on eBay. Reply
  • sor - Thursday, October 01, 2015 - link

    I have a 2014 Moto X now. They ruined the Moto X (incl pure), just like they did the Nexus 5 by making it huge. It also starts at $399 for 16GB, making it more expensive than 5x. Reply
  • hfm - Tuesday, September 29, 2015 - link

    "Aluminium is a very bad choice for the 6P. Heavier and blocks wireless signal."

    That's what the black area at the top is for, so I hear..
    Reply
  • MattCoz - Tuesday, September 29, 2015 - link

    Takes less space but they decided to add the space for a second speaker anyway. Reply
  • Ziich - Wednesday, September 30, 2015 - link

    the 6p is of similar weight to other phones of with large displays.
    6p- 178g
    Note 5-171g
    nexus 6- 184g
    mxpe- 179g
    6 plus-172g
    6s plus-192g
    one+2- 175g
    Also like most unibody aluminium phones it has antenna breaks to overcome issues with wireless signal blockage
    Reply
  • shadarlo - Wednesday, September 30, 2015 - link

    I don't care at all about MicroSD or Stereo speakers and I prefer 1080p to 1440p resolution any day of the week. If you have such good eyes you need 1440p on a 5inch screen then good for you... but I would prefer battery life and frame rates to imperceptibly better resolution.

    Personally what I would prefer is a 30-50% larger battery (I don't care what it does to the weight/thickness) and water-proofing/resistance. Those two features are very hard for me to ignore on the hardware side.

    On the software side I don't know how people can buy a phone that doesn't have double-tap to wake / sleep. Once you've used that on a phone you can't go back.
    Reply

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