The iPhone XS & XS Max Review: Unveiling the Silicon Secrets

Name: The iPhone XS & XS Max Review: Unveiling the Silicon Secrets
Item: The iPhone XS & XS Max Review: Unveiling the Silicon Secrets
Author: Andrei Frumusanu

by Andrei Frumusanu on October 5, 2018 8:00 AM EST

253 Comments | Add A Comment

253 Comments

Camera - Daylight - More HDR & Portrait

I wanted to have a second page of daylight photos because I wanted to spend a bit more time and have a tad more varied scenes for to test Apple’s SmartHDR – please enjoy.

[ iPhone XS ] - [ iPhone X ] - [ iPhone 7 ] - [ iPhone 6S ]
[ Galaxy Note9 ] - [ Galaxy S9+ ] - [ Galaxy S8 ]
[ LG G7 ] - [ LG G6 ] - [ LG V30 ] - [ OnePlus 6 ]
[ Mi MIX2S ] - [ Pixel 2XL ] - [ P20 Pro ]

This tunnel was a fun little test – the other end was sunlit while obviously quite dark from my side. I thought this would be a good little visual representation of the raw dynamic ranges that the phones would be able to capture.

Indeed, the iPhone XS is able to go a lot further into the end of the tunnel than the iPhone X, or for that matter, most other phones. This is an extreme show-case of Apple’s new HDR processing and how it’s able to play with bright highlights in scenes.

One scenario that Apple showcased during the keynote was a shot directly facing the sun. I’ve had users in previous reviews bombard me with comments as to that’s not how you should take a photo. To them I say: that’s an outdated notion of photography.

As computational photography becomes an ever increasingly common theme in devices, we’ll see more and more scenes like this one where shooting against the sun should be no issue at all.

The iPhone XS dramatically improves the shadow detail, and is able to notably reduce the sun’s halo in this shot, but I do think Apple might have overpromised a bit on the notion of computational photography. The best counter-example of this is to just switch over to what the Huawei P20 Pro was able to achieve in its 10MP AI mode, by far surpassing all other phones in the captured dynamic range of the scene. This facet of smartphone photography really opens up a new area of competition, and hopefully we’ll be seeing some exciting things in the future.

This shot follows the same themes we saw on the previous page, the iPhone XS handles the shadows a lot better and gives a lot more details over the iPhone X.

Samsung again opts for a much brighter picture, but I do think it comes at some cost of detail. Again I think the OnePlus 6’s HDR processing is an excellent middle-ground that would please most people, although Apple has a tad more natural look going for them.

In less direct sunlit environments, the difference between the iPhone X and XS might not be directly visible the thumbnails, however opening up the full resolution image showcases the XS’s significant increase of detail and textures throughout the whole scene. The larger pixels of the XS sensor along with the deeper DTI (deep trench isolation) results in significantly increased spatial resolution – even though the sensor has the same amount of pixels and even has a wider field of view, resulting in less pixels per given object.

Again Samsung tends for a brighter exposure that I think is a bit too much – detail slightly trails the XS. OnePlus bridges the two vendors in terms of exposure and detail.

This scene was mostly in the tree shadows, sun sunlit spots coming through the gaps. By now we should understand where the XS’ strengths are: brighter and more defined shadow details.

I think Apple nailed this shot and it has the best balance of exposure as well as the best detail retention. The OP6 closely followed in terms of exposure, but lost in terms of details. Samsung here just overdid it with exposure and just flattens the scene too much.

[ iPhone XS ] - [ iPhone X ] - [ iPhone 7 ] - [ iPhone 6S ]
[ Galaxy Note9 ] - [ Galaxy S9+ ] - [ Galaxy S8 ]
[ LG G7 ] - [ LG G6 ] - [ LG V30 ] - [ OnePlus 6 ]
[ Mi MIX2S ] - [ Pixel 2XL ] - [ P20 Pro ]

Finally the last shot, is again a good showcase of HDR of the different phones. The iPhone XS continues to perform very well here, showing the improvements we’ve seen in previous scenes. Again Samsung is brighter, but slightly loses out on details.

Portrait Mode

[ iPhone XS ] - [ iPhone X ]
[ Galaxy Note9 ] - [ LG G7 ]
[ OnePlus 6 ] - [ Mi MIX2S ] - [ Pixel 2XL ]
[ P20 Pro ]

Portrait mode is something that’s been quite the rage nowadays, and the iPhone XS promises to take advantage of its new inferencing engine power to create much better separation maps between the foreground subject and the background, to which the computational bokeh effect is applied.

Shooting in portrait mode on most phones means that the actual shot will be taken with the telephoto module, while the wide main camera is also doing work by serving as the depth sensor. Single-module phones such as the Pixel 2 rely solely on the computational power to discern between the subject and the background.

The results on the iPhone XS showcase a significant improvement in the image quality of portrait mode. First of all, the exposure and colour balance of the shot is just significantly better, something that’s universally valid for telephoto shots on the new XS.

The actual bokeh effect on the XS looks to be applied a lot more graduated, and while it’s still possible to see the edge of the pattern in some cases, it’s significantly improved.

This gradual application is what makes the iPhone’s portrait mode stand out to other phones. Only Huawei and Samsung somewhat manage to go a decent job, while all other phones look quite rubbish to be honest, with visible zigzag patterns around the subject.

Daylight Conclusion

Overall in daylight, the iPhone XS is easily a top-tier performer. One thing that I didn’t bring up throughout is picture capture consistency, and here the iPhone XS just shines. Every time you take a picture, you can be assured you will get a good shot – and there’s little to no difference in consecutive shots.

Apple’s new SmartHDR is a definite win, and allows for much more detail in the shadows, all while retaining good highlights in the scenes. The new sensor module is definitely showing its strengths even in daylight, as every shot that wasn’t in direct sunlight was able to showcase much improvements in terms of details as well as textures. I attribute this to the new sensor’s much improved DTI – something which results in the iPhone XS gaining quite a bit more resolved spatial resolution, even though the megapixel count is the same.

The new slightly wider viewing angle on the main camera is something that I enjoyed, and I hope Apple continues on in this regard. My iPhone X seems to suffer from lens defects in the left part of the scenes – the iPhone XS showcases no such chromatic aberrations and is sharp until the edge of the frame.

The biggest improvement seems to be on the telephoto lens. While on the iPhone X and before, the telephoto lens could result in quite different colours and exposures. On the iPhone XS the new module seems to be perfectly in balance with the main camera, so that there’s just very little difference in the picture between the two.

While sometimes I do prefer OnePlus 6’s HDR, the XS is more consistent in terms of detail throughout the scenes. Samsung’s Note9 and S9 also sometimes can get a better shot, however they have too much of a tendency to overexpose. I think overall, the iPhone XS takes the lead in terms of smartphone photography in daylight just because of its consistent shooting experience.

Camera - Daylight Evaluation: Zoom and Scenic Camera - Low Light Evaluation

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Glindon-P - Friday, October 5, 2018 - link
Wider color range only works at 30fps because the camera actually records 2 frames at different exposures (at 60fps) and combines them.

As far as higher FPS slow mo I’m sure it boils down to taking in enough light at high frame rates to be usable enough or just not something enough users care about. Anecdotally I’ve only used it just to test it and never again.
varase - Tuesday, October 23, 2018 - link
480 or 960fps slow mo is basically a gimmicky misnomer - how long can they sustain that frame rate before all the buffers fill up?

How many takes does it require to actually capture the action you're trying to film within the window that that high frame rate actually operates?
Star_Hunter - Friday, October 5, 2018 - link
In past iPhone reviews NAND performance was looked at, I assume since it wasn't included this year that it remains the same?
Andrei Frumusanu - Friday, October 5, 2018 - link
NAND is something on the to-do list in terms of revamping the test methodology - currently it's a mess both on iOS and Android.
whiskeysips - Friday, October 5, 2018 - link
Can Anandtech take an photo of how the iPhone XS reproduces the following image on their review model?

https://i.postimg.cc/q7wty6zY/Image-1.jpg

I have (5) iPhone XS has very poor color production on the following image, especially compared to my older iPhone7, see the example below:

https://i.postimg.cc/fbgFNbb1/226_E617_D-_A701-43_...

All of my iPhones also have a white point that appears significantly lower than 6500k judging by my eye. I do not have a colorimeter, but they do seem significantly off with certain content.

Unless the review models are cherry picked, I do not see retail units reaching the same quality.
Andrei Frumusanu - Friday, October 5, 2018 - link
How exactly are you expecting to test colour accuracy of an image through a photo?

As far as I'm aware, the phones aren't cherry-picked and they were sealed and the battery was uninitialised.
whiskeysips - Friday, October 5, 2018 - link
The reference image is a screen shot of the content to be displayed so source content should be preserved.

The color differences in the camera photo do reflect what I see with my eyes to a significant degree.

That is, on my iPhone7 and all my monitors in the house, the screenshot appears deep red at the top with a greyish red on the listed content.

On all the iPhone XS's in household, the content appears light red at the top, with the listed content becoming a distinct shade of brown instead of a greyish red.

I appreciate reading my post. The displays on my models do not seem all that accurate to me.
PhilJohn - Friday, October 5, 2018 - link
Have you properly calibrated the other phones and monitors in your house with a colorimeter? You'd be surprised at the awful D.e on most monitors out of the box.

When the displays were tested for colour accuracy they were marked very highly, so it could very well be that the XS is showing the CORRECT colours.
whiskeysips - Friday, October 5, 2018 - link
So you are saying that all my previous iPhones I have retired, my current macbook, my spouses iMac, all the TV's in the household, and my two (non-Apple) desktop are all incorrect?

AMC's brand color is red. The XS screen shows something similar to dried blood or a brown-red.

Did the app designers also have incorrectly calibrated monitors? The XS calibration is the problem, not the other way around.
PhilJohn - Friday, October 5, 2018 - link
And you've got night shift and true tone off? It could just be you have a dodgy OLED panel, check it against the ones in a store and exchange it if so.

But you'd be surprised how awful most consumer electronics are for colour calibration, people like "pop" and "vivid" even when it's totally oversaturated and nowhere near accurate.

The calibration charts in this article should point to the XS having exceedingly accurate colours.

The iPhone XS & XS Max Review: Unveiling the Silicon Secrets

Camera - Daylight - More HDR & Portrait

Portrait Mode

Daylight Conclusion

Post Your Comment

253 Comments

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Glindon-P - Friday, October 5, 2018 - link

varase - Tuesday, October 23, 2018 - link

Star_Hunter - Friday, October 5, 2018 - link

Andrei Frumusanu - Friday, October 5, 2018 - link

whiskeysips - Friday, October 5, 2018 - link

Andrei Frumusanu - Friday, October 5, 2018 - link

whiskeysips - Friday, October 5, 2018 - link

PhilJohn - Friday, October 5, 2018 - link

whiskeysips - Friday, October 5, 2018 - link

PhilJohn - Friday, October 5, 2018 - link

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