Apple iPhone 13 Pro vs Samsung Galaxy S21 Ultra: Camera Shootout and Comparison

Apple iPhone 13 Pro vs Samsung Galaxy S21 Ultra: Camera Shootout and Comparison

Every year around this time, there’s one camera comparison that must be made — the latest iPhone vs the latest Samsung Galaxy. It’s a necessity because Samsung and Apple have essentially a duopoly in the North American market, meaning for a major, highest-spending, chunk of the world’s phone market, the latest iPhone and the latest Galaxy are just about the only flagship options.

For years, the Samsung device chosen to go against the new iPhones would be the Galaxy Note, but there was no new Note device this year — and maybe never again — so the several-months-old Galaxy S21 Ultra steps in to fill the void. The good news for Samsung is, the Galaxy S21 Ultra was so awesome, so overkill as camera hardware at the time of release that even now, it’s still arguably the best Android camera phone.


The challenger facing Samsung is the iPhone 13 Pro. Since there are no camera differences between Apple’s Pro iPhones this year, that means this comparison can double as an iPhone 13 Pro Max vs Galaxy S21 Ultra too.

the iPhone 13 Pro and S21 Ultra in the hand

Click to expand: Samsung Galaxy S21 Ultra and Apple iPhone 13 Pro/Pro Max: Specifications

Samsung Galaxy S21 Ultra and Apple iPhone 13 Pro/Pro Max: Specifications

Specifications Samsung Galaxy S21 Ultra Apple iPhone 13 Pro and iPhone 13 Pro Max
  • Aluminum mid-frame
  • Gorilla Glass Victus back
  • Gorilla Glass Victus front
  • Stainless steel mid-frame
  • Glass front and back
  • “Ceramic Shield” for front glass
Dimensions & Weight
  • 165.1 x 75.6 x 8.9 mm
  • 229 grams
  • iPhone 13 Pro:
    • 146.7mm x 71.5mm x 7.65mm
    • 204g
  • iPhone 13 Pro Max:
    • 160.8mm x 78.1mm x 7.65mm
    • 240g
  • 6.8″ QHD+ Dynamic AMOLED 2X curved display
  • 3200 x 1440 pixels
  • 515ppi
  • 120Hz variable refresh rate
  • Super Retina XDR OLED:
    • iPhone 13 Pro: 6.1″
    • iPhone 13 Pro Max: 6.7″
  • ProMotion 120Hz variable refresh rate
SoC Qualcomm Snapdragon 888 (US & China); Exynos 2100 (everywhere else) Apple A15 Bionic
RAM & Storage
  • 12GB RAM/16GB RAM
  • 128GB/256GB/512GB
  • RAM not disclosed
  • 128GB/256GB/512GB/1TB
Battery & Charging
  • 5,000mAh
  • 25W USB Power Delivery 3.0 fast charging
  • 15W wireless charging
  • 4.5 reverse wireless charging
  • Battery size not disclosed; Approximate size from regulatory filings:
    • iPhone 13 Pro: 3,125 mAh
    • iPhone 13 Pro Max: 4,373 mAh
  • Wired charging up to 20W
  • Wireless charging up to 7.5W
  • MagSafe charging up to 15W
Security Ultrasonic in-display fingerprint reader Face ID
Rear Camera(s)
  • Primary: 108 MP, wide-angle lens, f/1.8, 79°, 24mm, 1/1.33″, 0.8µm (pre-nona-binning), OIS, PDAF, Laser AF
  • Secondary: 12 MP, ultra-wide-angle lens, f/2.2, 120° FoV, 13mm, 1/2.55″, 1.4 µm, Dual Pixel AF
  • Tertiary: 10 MP, telephoto lens, f/2.4, 35°, 72mm, 1/3.24″, 1.22µm, OIS, 3x optical zoom, Dual Pixel AF
  • Quarternary: 10 MP, telephoto lens, f/4.9, 10°, 240mm, 1/3.24″, 1.22µm, OIS, 10x optical zoom, Dual Pixel AF
  • Primary: 12MP wide, f/1.5 aperture, 1.9μm
  • Secondary: 12MP ultra-wide, f/1.8 aperture
  • Tertiary: 12MP telephoto, 3x optical zoom, f/2.8
  • LiDAR camera
Front Camera(s) 40MP 12MP TrueDepth camera system
Port(s) USB-C Lightning
Audio Stereo speakers Stereo speakers
  • 5G (sub-6 GHz and mmWave)
  • Gigabit LTE with 4×4 MIMO and LAA
  • Wi-Fi 6 (802.11ax) with 2×2 MIMO
  • Bluetooth 5.0
  • 5G (sub-6 GHz and mmWave)
  • Gigabit LTE with 4×4 MIMO and LAA
  • Wi-Fi 6 (802.11ax) with 2×2 MIMO
  • Bluetooth 5.0
Software One UI 3.1 over Android 11 iOS 15
Other Features Dual physical SIM Dual physical SIM or Dual eSIM support

Apple iPhone 13 Pro vs Samsung Galaxy S21 Ultra: Overview of the Camera Hardware

One of the biggest differences between Android and iPhones is that Android brands often make wholesale design overhauls from generation to generation, while Apple prefers to keep a consistent design language for years. This is especially true this year for these two phones. Both Samsung and Apple made relatively big advancements in their camera systems, but while Samsung gave the Galaxy S21 Ultra’s camera module an entirely new look to signify the upgrade, the iPhone 13 Pro camera module looks exactly the same as the iPhone 12 Pro’s — just larger in size.

iPhone 13 Pro and Galaxy S21 Ultra in the hand

We’ll start with the new kid on the block. The iPhone 13 Pro camera is, just as last year, a triple-lens main system consisting of a trio of 12MP cameras. But all three lenses got new, larger image sensors. The ultra-wide camera also gains a faster aperture, while the telephoto zoom lens is now a 3x optical zoom instead of a 2x. The front-facing selfie camera, also 12MP, remains mostly unchanged, as is the LiDAR scanner (that’s used more for AR apps and not so much for photography).

The Galaxy S21 Ultra, meanwhile offers a 108MP main camera with an even large image sensor than the iPhone 13 Pro’s, a 12MP ultra-wide, and two zoom lenses covering the 3x and 10x optical zoom range — the latter a Periscope zoom lens. A 40MP selfie camera sits in a tiny hole-punch around the front. To this day, this is still technically the most well-rounded and capable smartphone camera hardware yet, with only Huawei’s P40 Pro Plus (which used the dual 3x/10x zoom lens strategy before Samsung) being able to throw its name into the ring.

Note: Due to WordPress’ file upload limitations, the photos you are about to see in this article have been compressed. If you want to see the original, unedited images to pixel-peep, I’ve uploaded all the sample photos to this Flickr album, which is also embedded at the bottom of this article.

Test 1: Main camera

We’ll start with some easy shots — in great lighting conditions, with the light source coming from behind me toward the scene. It’s no surprise both phones produce beautiful shots, and it really comes down to personal preferences.

It's no surprise both phones produce beautiful shots, and it really comes down to personal preferences.

The iPhone, for example, prefers to let areas covered in shadows stay dark, while Samsung brightens up everything. This is most noticeable when looking at the tree leaves in the samples.

Moving to more challenging conditions — shooting against harsh light or in low light conditions — then we start seeing each camera’s strengths and weaknesses.

Apple’s marketing team has been heavily promoting the larger image sensor used by the iPhone 13 Pro’s main cameras, but in typical Apple fashion, the company didn’t actually reveal exact numbers. But those who know cameras can calculate the iPhone 13 Pro’s image sensor size using its micron-pixel number relative to image resolution, and the iPhone 13 Pro’s main camera image sensor size is around 1/1.67 inch.

This is a big jump for Apple, but still small compared to the Galaxy S21 Ultra’s 1/1.33 inch. This means Samsung’s image sensor can still pull in more light and has a shallower depth-of-field for natural bokeh when shooting subjects up close.

In the below samples, Apple’s tendency to leave shadowed areas remain dark starts to work against it when I am shooting against backlight. In the below set, the city streets appear dull and covered in shadows, while Samsung’s HDR goes into overdrive to keep city streets well lit without blowing out the skies.

However, Apple’s image, by virtue of being not as artificially brightened, keeps the definitions of the clouds better. If you zoom into the images (use the original uncompressed photos in this Flickr album), you can see the iPhone image retains details better, especially in the bottom half of the photo.

One noticeable change between the iPhone 13 Pro and the iPhone 12 Pro is the former, because it has a larger image sensor that takes in more light, but doesn’t resort to light mode as often. In moderate low-light settings (night shots in the city, for example), the iPhone 13 Pro will mostly shoot the photo straight up instead of turning on night mode. The result is images that aren’t as well-lit, but they capture the real-life vibe closer to Samsung’s images, which are brighter than the actual scene to my eyes.

When you move to real low light conditions, both phones will turn on night mode automatically. Because the iPhone 13 Pro’s camera by default takes in less light, its photos obviously benefit from night mode more.

But I also think Apple’s night mode just does a better job in general compared to Samsung’s. The below photos were captured in the same area of a park after hours, a scene that was quite dark in real life. Night mode lit up both phones’ photos significantly, but Samsung’s color science is inconsistent.

Apple's night mode just does a better job in general compared to Samsung's

This is a very close one, but I personally would give the win for the main camera to the Galaxy S21 Ultra because I find the colors pop a bit more, particularly in moderately low light.

Test 2: Ultra-wide camera

Both phones’ ultra-wide-angle cameras have a really wide FoV (well over 120-degree), and quality is close during the day.

In low light conditions, the iPhone 13 Pro will need to resort to night mode, while the Galaxy S21 Ultra often does not. And even still, the Galaxy S21 Ultra’s ultra-wide shots are brighter and more vivid.

If we are shooting in absolute darkness and must rely on night mode, then I trust Apple’s night mode more than Samsung’s. But for just about any other scene that doesn’t require a multi-second night mode, Samsung’s ultra-wide is just a bit better.

Test 3: Portraits

Interestingly, despite both phones having a 3x zoom lens, only the iPhone uses the 3x focal length (roughly 77mm) as the default framing in Portrait mode. The Galaxy S21 Ultra shoots at a 2x zoom by default, which does not take advantage of its 3x zoom lens. You can see the difference in framing in the portrait samples of my friend.

You can however manually switch to the 3x zoom lens on the Galaxy S21 Ultra. In good lighting conditions, these shots are too close to call, although I think the iPhone 13 Pro’s edge detection around my friend appears a bit more natural.

Just as a test, I took portrait shots against harsh backlight (not an ideal way to shoot photos). The iPhone’s HDR produced a perfectly balanced photo — the shot was able to highlight my partner without blowing out the scene outside the window. But Samsung’s shot is the more realistic one — if you take this same shot with a “real” camera, there’s no way you can have both subject and window be properly exposed. Either the subject is drenched in shadows or the window scenery must be blown out.

I think the iPhone 13 Pro’s portrait capabilities win by a slight hair — it helps that Apple’s 3x zoom goes slightly further than Samsung’s 3x zoom.

Test 4: Zoom capabilities

This category has been a landslide victory for Samsung (or any Android flagship for that matter) over the iPhone for the past few years, but this year, the iPhone 13 Pro closes the gap a bit. In 3x zoom shots, as shown in the last section, the iPhone 13 Pro’s photos are as sharp and crisp as Samsung’s.

Because Samsung’s second zoom lens doesn’t kick in until 10x, that means any zoom from 3x to 9.9x are still evenly matched. It’s only when you go 10x or beyond does the Galaxy S21 Ultra wins.

This one comes down to personal preference. I know some people who find anything beyond 5x zoom to be overkill, but for me personally I use 10x zoom often so I prefer Samsung’s Periscope zoom lens.

Test 5: Selfies

Apple and Samsung have opposing philosophies to processing selfies, and as an Asian-American who can see both sides, I think it represents the cultural differences between laid-back Northern California and metropolitan Seoul very much. The iPhone 13 Pro’s selfies tend to sway towards warm tones, with a sun-kissed vibe, and show us in our raw form — warts and all. The Galaxy S21 Ultra’s selfie cameras tend to over-process to smooth and lighten skins, producing a slightly superficial-looking image.

Selfie cameras of iPhone 13 Pro and Galaxy S21 Ultra

In every image, you can see my skin looks clearly lighter and “softened” by Samsung’s Korean aesthetics. While the iPhone is perhaps too raw, showing all my blemishes, dark eye circles, and pimple on my left cheek.

When shooting in difficult lighting conditions — against backlight and in dim spots — both phones do a great job of finding proper exposure to keep my face well lit (the priority for selfies).

Which camera is better for this aspect depends on which style of selfies you prefer, so we’re inclined to assess this as a tie.

Test 6: Video Recording

I’ve long considered the iPhone to be the gold standard for smartphone videography, and while Samsung has made major strides in recent years, the iPhone 13 Pro still wins handily in video performance. Below are a series of samples, shot with the main and ultra-wide camera, in various lighting conditions. Whether it’s stabilization or noise in low light scenes, the iPhone 13 Pro videos are of higher quality.

Plus this year, the iPhone 13 Pro (and other iPhone 13 models too) introduces Cinematic mode, which is like Portrait mode for video, and it works very well. The Galaxy S21 Ultra has a similar feature called Portrait video, but it doesn’t work nearly as well — you can’t change focus points or degree of bokeh after the fact, and edge detection misses far more often than Apple’s take.

Test 7: Macro shots

Apple is very late to introducing macro photography, but it has figured out how to do it better than its Android rivals

As usual, Apple is very late to introducing macro photography, but also, as usual, Apple has figured out how to do it better than its Android rivals. This is another landslide win for the iPhone 13 Pro, because first, the iPhone 13 Pro can get closer to a subject than the Galaxy S21 Ultra; second, the iPhone 13 Pro’s macro mode kicks in automatically no matter which lens the iPhone is currently using (though this may not always be desired). The Galaxy S21 Ultra must be set to the ultra-wide camera before macro mode kicks in. Finally, the iPhone 13 Pro can shoot macro videos too, while the Galaxy S21 Ultra can only do macro photography. A no brainer victory for the iPhone 13 Pro.

Conclusion: Both the phones have excellent cameras

So in seven categories, the iPhone 13 Pro won three (portraits, video recording, macro), while the Galaxy S21 Ultra won three (main camera, ultra-wide, zoom). I’m declaring selfies a tie since the “natural” vs “beautified” debate comes down to personal preferences (among my friends, they’re evenly split).

The iPhone 13 Pro and Galaxy S21 Ultra

While two of Apple’s three wins are landslide victories (macro and video) compared to Samsung’s closer victories, one can argue Samsung’s wins come in more important categories (main and ultra-wide cameras).

Whatever the case, both of these phones have excellent cameras and will serve consumers well. If shooting videos is important to you, the iPhone 13 Pro is probably a better fit; but the Galaxy S21 Ultra has a more versatile focal length range, and can grab clean 10x (even 15x) shots that are Instagram-worthy.

    The iPhone 13 Pro brings a much improved camera system with larger sensors and a new Cinematic mode that's fun to play with.
    The Samsung Galaxy S21 Ultra still has the most versatile camera system around.

But as a cliffhanger, neither phone can be called the best camera smartphone this year, at least not yet anyway. Stay tuned for more!

iPhone 13 Pro vs Galaxy S21 Ultra

About author

Ben Sin
Ben Sin

I'm a senior editor at XDA Developers. I have been a journalist for a decade, the last five years covering the mobile tech scene closely, reviewing just about every phone and attending trade shows and launches. I also run a gadget review channel on YouTube.

We are reader supported. External links may earn us a commission.