The OnePlus 6 Review: Among The Best Of 2018

Camera - Architecture & UI

The OnePlus 6 offers a new Sony IMX519 sensor as the main rear camera shooter. It comes with a 16MP resolution with pictures coming out at 4608 x 3456 resolution. The sensor has a slight pixel size disadvantage compared to other 12MP 1.4µm main camera shooters as the 1/2.6” sensor results in 1.22µm pixels. The optics on the main sensor is an f/1.7 aperture lens with a 25mm equivalent focal length. The module also comes with OIS.

As mentioned in the introduction, the second camera of the OP6 is an oddity as its optics isn’t any different from the main shooter, it’s still an f/1.7 lens with the same viewing angle. The sensor here is a 20MP Sony sensor with 1µm pixel pitches. OnePlus uses this secondary sensor for depth information such as in portrait mode (even though the blurring is done computationally), and is said to use it in certain low-light conditions in coordination with pixel binning to 5MP and rescaling to result in better low-light photography. I’ve had a hard time trying to figure out exactly how the low-light functionality works and didn’t really see much effect in my testing, and there’s been seemingly a large consensus among the community and reviewers that OnePlus should just have went with a telephoto module here as the current use of the second sensor seems like a bit of a waste given the limited use-cases.

Interface-wise the camera app was a joy to use and OnePlus used the KISS principle (Keep it simple, stupid) with only providing the most essential interface elements and shooting modes. Over the last year or two we’ve seen some vendors go down the rabbit hole of offering added shooting modes over shooting modes, which in effect vastly decreased the shooting experience as in many cases you’re not actually sure which mode will result in the best quality result. The OnePlus 6 on the other hand is very straightforward as the default mode it comes in is essentially what you’ll use all the time.

Alongside the auto mode, there’s quick swipe actions to video and portrait mode, and the rest of the basic functions such as slow motion, time-lapse, pro-mode, panorama and the new integrated Google Lens mode are also very quickly accessible.

One thing I was actually surprised to see is that the camera doesn’t offer any resolution choice other than a quick switch between 4:3, 19:9 and 1:1 aspect ratios. Again I think this is positive as effective there shouldn’t really be any reason why you’d want to capture in a resolution less than the full sensor width/height.

Camera - Daylight Evaluation

[ OnePlus 6 ]
[ G7 ] - [ G6 ] - [ V30 ]
[ Mi MIX 2S ] - [ Pixel 2 XL ] - [ Mate 10 ] - [ P20 ]
[ P20 Pro ] - [ S8 ] - [ S9+ ] - [ iPhone X ]

In this first scene we see the OnePlus 6 really take advantage of the 16MP increased resolution as it’s able to maintain an excellent amount of detail, closely battling with the Galaxy S9 in terms of actual effective spatial resolution, and obviously the P20 Pro’s 40MP shots just have brute force things in terms of detail.

In terms of exposure, the OP6 performed among the best as in my view it had one of the best retentions of highlights and dynamic range. Overall the processing here is extremely similar to the MIX 2S; I wouldn’t be surprised if this is generally some kind of common behaviour of the Snapdragon 845 ISP.

[ OnePlus 6 ]
[ G7 ] - [ G6 ] - [ V30 ]
[ Mi MIX 2S ] - [ Pixel 2 XL ] - [ Mate 10 ] - [ P20 ]
[ P20 Pro ] - [ S8 ] - [ S9+ ]
[ iPhone X ]

The next bridge scene again fares extremely well for the OnePlus 6 – the exposure is able to retain the sufficient highlights in the sunlit foliage and clouds and is able to beat a lot of phones, bar the LG V30 and P20Pro. Only the latter in its sensor pixel binning mode is able to achieve sufficient native high dynamic range.

Detail wise again the OP6 is pulling punches with the S9 and personally I would prefer the OP6’s results here as it’s able to perform better on the foliage detail due to its increased resolution.

[ OnePlus 6 ]
[ G7 ] - [ G6 ] - [ V30 ]
[ Mi MIX 2S ] - [ Pixel 2 XL ] - [ Mate 10 ]
[ P20 ] - [ P20 Pro ]
 [ S9+ ] - [ iPhone X ]

The next shot we come to a similar conclusion as the OnePlus 6 manages one of the best overall results compromising between maintaining sufficient dynamic range in the shot and not flattening out the highlights of the bottom half of the scene as much as other phones.

Detail wise again it’s a close battle between the S9 and the OP6. The S9 preserves a tad more shadow detail in some areas as it’s HDR is able to bring them out a bit more, but again this also causes the highlights to disappear. Sharpness wise I think the OP6 does the best job on the wide shot – this scene in particular would have really benefitted from a telephoto lens for the OP6.

[ OnePlus 6 ]
 [ G7 ] - [ G6 ] - [ V30 ]
[ Mi MIX 2S ] - [ Pixel 2 XL ] - [ Mate 10 ]
[ P20 ] - [ P20 Pro ]
[ S8 ] - [ S9+ ] - [ iPhone X ]

The final scene of this type is a repeat story of the previous two – the OP6 is among the best in managing to preserve the dynamic range throughout the whole scene as other devices’ HDR processing really flatten out the image on the bottom half in favour of the sky, the iPhone X and the LG V30 are the two other phones who do the best here but I favour the OP6’s and V30’s colour renditions.

Detail wise the OP6 wins again over the competition, albeit it looks like the S9 has less issue with chromatic aberration that can be seen in some parts of the OnePlus shot. The P20Pro’s 40MP mode in this shot resulted in a mess so wasn’t of consideration.

[ OnePlus 6 ]
[ G7 ] - [ G6 ]
[ V30 ] - [ Mi MIX 2S ] - [ Pixel 2 XL ]
[ Mate 10 ] - [ P20 ] - [ P20 Pro ] - [ S8 ] - [ S9+ ] - [ iPhone X ]

The OP6 in the abbey shot is again really good as it’s able to produce a well-balanced exposure retaining high dynamic range throughout the shot. The MIX 2S in the second sample is actually seemingly again the nearest in terms of processing, but the OP6 went for a longer exposure and results in just a brighter picture which I think is better.

Detail wise, the V30 and S9 are the closest competitors to the OP6. The V30 has a narrower field of view and this results in an advantage in terms of spatial resolution versus the OP6.

In the OP6 shot again at 3/4^ths of the screen we can see chromatic aberration most likely caused by defects in one of the lenses, this seems to be localised to the right side of the screen as the left side look to suffer from such visible effect.

[ OnePlus 6 ]
[ G7 ] - [ G6 ] - [ V30 ] - [ Mi MIX 2S ] - [ Pixel 2 XL ]
[ Mate 10 ] - [ P20 ] - [ P20 Pro ] - [ S8 ] - [ S9+ ] - [ iPhone X ]

In this shot again the OP6 is most closely matched up with the MIX 2S in terms of exposure and colour balance. Although the OP6 seems to have better resolution, the S9 brings out much better texture detail throughout the scene.

[ OnePlus 6 ]
[ G7 ] - [ G6 ] - [ V30 ]
[ Mi MIX 2S ] - [ Pixel 2 XL ] - [ Mate 10 ] - [ P20 ] - [ P20 Pro ]
[ S8 ] - [ S9+ ] - [ iPhone X ]

In the shop front shot with lots of detail and colours I think the OP6 I think misses it a bit in terms of colour temperature as it’s too warm, and it’s also flattening out the highlights a bit too much as it’s trying to bring out the shadows a lot more than other phones.

Detail wise, again in some parts of the scene the OP6 is the winner, however the large aperture lens doesn’t do it favour as we can see chromatic aberrations, most visible on the haze of the left most elephant as well as on the blurriness of the silver elephant in the shop window.

[ OnePlus 6 ]
[ G7 ] - [ G6 ] - [ V30 ] - [ Mi MIX 2S ] - [ Pixel 2 XL ]
[ Mate 10 ] - [ P20 ] - [ P20 Pro ] - [ S8 ] - [ S9+ ] - [ iPhone X ]

In the last shot I try to evaluate the colour reproduction and dynamic range one of the toughest scenarios for smartphones – getting the correct colour reproduction on flowers such as the imaged petunias. Some phones such as the iPhone X can come completely off-mark here and essentially every phone has its own interpretation. Wrong HDR processing here can really ruin the shot. Unfortunately the OnePlus 6, while doing well in terms of colour balance, fall prey to the processing as it flattens the highlights too much as it tries to bring out more shadows off-subject. The V30 and S9 have the best colour reproduction, but the S9 is a step ahead in terms of avoiding colour clipping as well as detail retention.

Overall the OnePlus 6 in daylight was an extremely good shooter competing for the top in terms of picture quality. I really enjoyed seeing it having a really good HDR implementation that didn’t flatten out much of the highlights in sunny conditions – something other smartphones have a tendency to do. Consistency of the OP6 has been also great in daylight, and I haven’t had really any bad shots with the phone.

In terms of detail, the OP6’s 16MP sensor can take the top spot in terms of details and in many scenes takes the top spot in terms of resulting spatial resolution, however its detail consistence across the scene isn’t equal because it seemingly suffers in sharpness due to its optics and imperfect lens that results in chromatic aberrations in distinct parts of the scene.

In normal daylight shots, the secondary camera seems to be essentially useless as I haven’t found any use-case for it yet. This could have been replaced with a telephoto lens in my opinion, but let’s first see the night time shots.