Camera: Daylight Evaluation Continued

I focused on the differences between the S20 devices until now, so let’s take a better look at how they compare against the competition and their predecessors.

Click for full image
[ Galaxy S20U - (S) ]
[ Galaxy S20U - (E) ]
[ Galaxy S20+ (E) ]
[ Galaxy S10+ (S) ] - [ Galaxy S10+ (E) ]
[ iPhone 11 Pro ] - [ Pixel 4 ]
[ Mate 30 Pro ] - [ P30 Pro ]
[ X-T30 ]

On the main camera units, things actually don’t differ all too much in terms of compositions between the different devices. I maybe would have wished for a bit brighter highlights as the phones are again still to shy on those last 10% of levels which didn’t quite convey the sun-lit façade of the building.

The high-light texture retention and sharpening comments made earlier again apply here to both the S20 Ultras. I prefer the Exynos shot as it’s more natural, but it’s a subjective preference choice.

The Ultra-Wide angle is really good in terms of exposure and dynamic range on the S20’s, however I do see the reduction in resolution compared to the S10 as the new phone actually does see a downgrade in the amount of captured details.

I don’t know what’s happening on the Exynos S20 Ultra unit’s Ultra-Wide, but there’s this blob of blurriness in the very center of the image on both phones. It’s as if the phone was trying to do some image fusion with another sensor but failing at it spectacularly. This isn’t present on the S20+.

Click for full image
[ Galaxy S20U - (S) ]
[ Galaxy S20U - (E) ]
[ Galaxy S20+ (E) ]
[ Galaxy S10+ (S) ] - [ Galaxy S10+ (E) ]
[ iPhone 11 Pro ] - [ Pixel 4 ]
[ Mate 30 Pro ] - [ P30 Pro ]
[ X-T30 ]

The S20’s main competition is the iPhone 11, and frankly here they’re losing out to Apple when it comes to the composition of the scene, as the 11 Pro is able to maintain much better dynamic range without clipping the blacks as badly as on the Galaxy phones. In terms of details I also prefer the iPhone as it’s producing a much more natural look. The Snapdragon S20 Ultra’s over-sharpening is again far too much and doesn’t look good, particularly on artificial objects and contours.

The Ultra-Wide here is also a straight down-grade from what we saw on the S10, with lower resolution and worse dynamic range.

Briefly looking at the super-high res images again, it’s as if the two S20 Ultras had completely different sensors as the Snapdragon unit is again far blurrier and feels lower resolution as to what the Exynos is able to achieve. However here it’s the S20+’s 64MP unit which shines as it’s able retain a lot more detail than either Ultra – check out the book shelves on the center-left side.

Click for full image
[ Galaxy S20U - (S) Auto ]
[ Galaxy S20U - (S) Tap ]
[ Galaxy S20U - (E) Auto ]
[ Galaxy S20U - (E) Tap ]
[ Galaxy S20+ (E) Auto ]
[ Galaxy S20+ (E) Tap ]
[ Galaxy S10+ (S) ] - [ Galaxy S10+ (E) ]
[ iPhone 11 Pro ] - [ Pixel 4 ]
[ Mate 30 Pro ] - [ P30 Pro ]
[ X-T30 ]

The S20 phones here had some problems for actually exposing for the foreground of the scene instead of the sky or the actual sun. The S10+E and Pixel 4 are actually amongst the best devices here, but still quite a bit far from the raw dynamic range of the scene (See X-T30 reference). There’s also some severe lens flaring here that wasn’t as prevalent is past devices – again likely due to the larger sensor sizes this year.

Click for full image
[ Galaxy S20U - (S) ] - [ Galaxy S20U - (E) ]
[ Galaxy S20+ (E) ]
[ Galaxy S10+ (S) ] - [ Galaxy S10+ (E) ]
[ iPhone 11 Pro ] - [ Pixel 4 ]
[ Mate 30 Pro ] - [ P30 Pro ] - [ X-T30 ]

Here’s also a scene where I think the new S20’s fail to compete with the iPhone 11 Pro in terms of either detail or dynamic range processing. It’s an upgrade over the S10 series, but I had expected more out of the camera hardware.

These samples also showcase some odd behavior between the Snapdragon and Exynos at 108MP resolution. The latter is just again massively sharper, showing more natural resolution. On the Snapdragon when you closer on the tree branches you see a ton of ghost images. I think what’s happening here is that the phones are taking multiple shots for the HDR compositing, but the Exynos is able to do this in a more optimized way. Also check out the left background buildings on the Snapdragon – it’s a ton sharper and seemingly more in focus, probably a sign that the two phones are focusing on totally different things.

Click for full image
[ Galaxy S20U - (S) ] - [ Galaxy S20U - (E) ]
[ Galaxy S20+ (E) ]
[ Galaxy S10+ (S) ] - [ Galaxy S10+ (E) ]
[ iPhone 11 Pro ] - [ Pixel 4 ]
[ Mate 30 Pro ] - [ P30 Pro ] - [ X-T30 ]

In an indoor shot, the S20 phones also fail to catch up with the iPhone 11. The new phones are certainly upgrades to the S10 series, but I think the dynamic range is a bit lacking and then there’s again the issue of sharpness – over-sharpening on the Snapdragon phone, and the general optics concerns all the models.

Overall Daylight Conclusion – Somewhat Disappointing

The S20 series feel like they’re overpromising and under-delivering on their camera capabilities when it comes to captures. Samsung delivered some incredible hardware here when it comes to the paper specifications, but I feel that it fell short of actually materializing in actual better camera captures.

Starting off with the S20 Ultra: The phone’s telephoto module does deliver on its promises, and the combination of a 4x optical magnification module with a 48MP sensor achieves some incredible zooming capabilities that are clearly far ahead of any other device on the market today. There’s not much more to say here – if you want a phone with an excellent telephoto module, then the S20 Ultra is the obvious choice.

The S20 Ultra’s 108MP main camera was quite unconvincing to me in the daylight shots. There are several layers that we have to peel apart here. First of all, there are very obvious processing differences between the Snapdragon and Exynos models this year. While on the S10 series this was in favor of the Snapdragon, I feel the other way around for the S20 series as the sharpening on the S20 Ultra here has gone absolutely haywire on all the camera’s modules, going beyond what one would consider an improvement of picture quality into the realm of actually being detrimental to the picture. The Exynos variant here seemingly has no sharpening processing at all, and it feels a ton more natural.

On the matter of the 108MP picture shots, there’s also very stark differences between the two variants of the phone, and the Exynos model somehow is consistently ahead in terms of the sharpness and natural resolutions of the shots. I don’t know what the cause for this is, but the two phones clearly are using very different mechanisms to get to the end results.

Lastly and most importantly, I feel like the optics of the modules aren’t able to keep up with the camera sensors. I feared this would happen because of the sensor’s humongous size, and it did show up in the images, and the edges of the picture just aren’t as sharp as on phones with smaller sensors, including the S20+.

The S20 Ultra’s massive quality hole in the 1.1x to 3.9x zoom range is just atrocious. Samsung here severely lags behind Huawei’s processing prowess in actually using the 108MP’s full resolution during the sensor fusion, and particularly shots in the 2x range just look really bad compared to the S20+ and other phones with 2x optical modules. The current software solution of stitching the telephoto module picture into the middle of a digitally magnified 12MP shot just feels like some intern’s implementation. Samsung has the hardware ability to address this, but let’s see on whether they’ll do this.

The Ultra-Wide module also feels like a downgrade compared to the S10 series. I’ve most used this module in daylight settings anyway and I loved the results on the S10 series, and the loss of resolution on the S20’s here is just a negative with essentially no added positives for the new module.

Finally, the S20+’s camera system, at least in daylight, seems like a much more sensible configuration. It doesn’t suffer as badly from the optics on the main sensor, and Samsung’s implementation of the 64MP sensor as a secondary wide-angle resolves the problems of having mediocre intermediary zoom levels. Sure, it doesn’t zoom quite as far and clear as the S20 Ultra, but it’s in line with current 2x optical modules and even slightly outperforms them beyond that, resulting in useable 3-4x shots with plenty of clarity. Ironically enough, I also find that the 64MP shots on the S20+ more often than not actually beats the 108MP shots of the S20 Ultra due to the better optics – although these are not perfect as there’s evident hazing in very high contrast objects.

Frankly, I’m quite disappointed in the results of the S20 series. They’re still good, and represent upgrades to the S10 series in most scenarios, but they fall short of the overhyped expectations. I think Apple’s iPhone 11 Pro’s main sensor quality and pictures are still a step above what the S20’s can deliver in daylight, with cleaner, sharper and more natural results. Huawei also is seemingly years ahead of Samsung when it comes to complex camera systems like the one employed on the S20 Ultra, having much better optics and the proper software processing to actually deal with the multiple modules.

Camera: Daylight Evaluation Camera: Low Light Evaluation
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  • Andrei Frumusanu - Friday, April 3, 2020 - link

    No, there's no software application notion of displaying something at a given refresh rate - things just render as fast as possible unless. 3D games might have an FPS cap, but that's not refresh rate.
  • FunBunny2 - Friday, April 3, 2020 - link

    this is what I mean.

    "If you can run a game at 100 frames per second, you may see a tangible benefit from playing it on a monitor that can refresh that many times per second. But if you’re watching a movie at a classic 24 FPS (frames per second), a higher refresh rate monitor won’t make any difference."

    here: https://www.digitaltrends.com/computing/do-you-nee...

    IOW, unless the processor sending either video or coded application images does so 120 per second, all the 120hz screen does is re-scan each image multiple times. how can the refresh rate create modified images, between those sent by the processor? or do 90/120hz screens do just that?

    do you disagree with that author?
  • krazyfrog - Friday, April 3, 2020 - link

    The screen refreshes at a set rate regardless of the content being sent to it. In this case, it always refreshes at 120Hz. If the content is in 24fps, each frame of the video persists for 5 refreshes of the display. To the eye, it looks no different than watching the same 24fps video on a 60Hz display.
  • surt - Saturday, April 4, 2020 - link

    Not true. It does not look the same to your eye, and the difference is the latency from the time that information is ready to display to the time it reaches your eye. The 120hz display will show that transition from e.g. the 23rd to the 24th frame significantly faster.
  • FunBunny2 - Sunday, April 5, 2020 - link

    " It does not look the same to your eye"

    that's a may be. years ago I worked in a manufacturing plant, no windows and only florescent lights. one of the guys I worked with wore glasses that looked like very weak sunglasses, but no prescription. I asked him about them and he said his eye doctor prescribed them for his constant headaches. turns out that some folks rectify the 60hz flash of florescent light, and it hurts. the same phenomenon would occur with monitors. if you're not among the rectifiers, it's hard to see how you would see different at 120hz.
  • surt - Sunday, April 5, 2020 - link

    And yet, it's not hard to see at all. Response tests are undeniable. People's reactions are unquestionably faster on 120hz. Whether you notice the difference or not, it exists.
  • surt - Saturday, April 4, 2020 - link

    It matters to any game. If your game updates at 30fps, the 120hz display will get that information to your eye a fraction faster than the 60hz display, because the 'time to next frame' + 'time to display next frame' is always smaller on the 120hz.
  • eastcoast_pete - Friday, April 3, 2020 - link

    Great review, thanks Andrei! Question: just how much power draw does the 5G modem add, especially the mm ones for us in the US? Along those lines, can the 5G function disabled in software, so not just deselected, but actually shut off? I imagine that the phone hunting for mm connectivity when it's not there could eat quite a bit of battery life.
  • Andrei Frumusanu - Friday, April 3, 2020 - link

    I don't even have 5G coverage here so I wouldn't know!

    Yes, 5G can be disabled in the options. I would assume that actually shuts off the extra RF. Similarly, I don't know how the mmWave antenna power management works.
  • eastcoast_pete - Friday, April 3, 2020 - link

    Thanks for the reply! mm 5G coverage is supposedly "available" in some places here in the US, but I don't believe the carriers here have set up anywhere near enough cells for it to be viable. Plus, even if I'd get Gb download rates, they still have caps on their plans, unless one shells out for the premium unlimited ones. And those make the 20 Ultra's price tag look like a bargain (:

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