Technologies

iPhone 15 Pro Max Camera vs. Galaxy S23 Ultra: Which Is Best?

Apple’s latest iPhone has an amazing camera. But then, so does Samsung’s. Here’s our expert comparison.

The iPhone 15 Pro Max has one of the best cameras it’s possible to get on any phone, with its main camera and new 5x telephoto zoom lens letting you snag incredible images in any conditions. It’s an overall photography beast, but it isn’t the only great camera phone to buy. Samsung’s Galaxy S23 Ultra has remained one of our top picks for photographers since it launched earlier this year. It can take glorious images, and its 10x zoom offers even more creative options.

But how do these two phones compare when it comes to photo-shooting prowess? To find out, I put both devices through their paces in a series of tests in London and Edinburgh, including night mode imagery, zoom tests and portrait mode challenges.

Read more: Best camera phone

The long story short is that both phones are incredibly capable when it comes to taking photos that’ll wow your Instagram followers, but read on to see how each phone fares under different conditions.

Both phones have captured this bright, vibrant scene well with their main cameras. But the iPhone 15 Pro Max has produced more realistic colors in both the sky and in the main building to the left of the scene. The S23 Ultra’s sky looks particularly oversaturated , with a yellow tinge to the scene that I’m less keen on.

It’s the same story when switching to each phone’s wide-angle lens. The S23 Ultra’s shot is more vibrant, but it looks almost unnaturally saturated as a result. The iPhone 15 Pro Max’s shot looks almost a little drab by comparison, but I prefer its more faithful reproduction of colors.

Beyond a slight shift in white balance, there’s very little to choose between either shot here.

I focused closer-up on these pretty pink flowers using the main cameras on each phone, and the iPhone is the clear winner. It’s provided an attractive out-of-focus bokeh to the background, while keeping the subject looking nice and sharp, which helps the foreground flowers stand out. The S23 Ultra doesn’t have the same depth effect and its colors are extremely saturated. The green leaves to the bottom left of the image in particular look almost toxic against the iPhone’s much more realistic tones.

Color balance isn’t an issue here, with both phones producing well-exposed shots and the vibrant artwork on this bridge looking well-produced in both images.

There’s not a lot of immediate difference here, so I really have to nitpick to draw any conclusion. On the one hand, I slightly prefer the brighter, higher-contrast exposure the S23 Ultra has managed. However, the iPhone 15 Pro Max has a more attractive shallow depth of field, with softer bokeh noticeable on the chairs and light sources in the background. As a result, we can call this one a tie.

Switching to the ultrawide cameras on both phones, the big difference is the shift in white balance on the S23 Ultra. Samsung’s phone has opted for an image with a strong magenta color cast that I’m not particularly keen on. While the iPhone’s shot is a little darker, its color tone is much more accurate.

Both phones have portrait modes that can be used with different lenses but still capture that attractive bokeh effect around your subject. Taken with the standard 1x lenses, the S23’s shot is wider than the iPhone’s, while also producing richer contrast and stronger colors. The iPhone’s looks quite washed out, either due to lens flare or simply through software processing, and the result is disappointing.

Things change when we look at the zoomed-in shots. The iPhone Pro Max’s 5x zoom lens has captured a lovely portrait here, with great exposure and a really natural-looking bokeh around the subject that could easily have been taken on a DSLR with a telephoto zoom. The S23 Ultra’s shot still looks good though, with rich contrast and deep colors.

The iPhone 15 Pro Max’s 5x zoom has delivered a much better-looking shot than the S23 Ultra’s 3x lens, with more natural-looking colors and exposure. Things improve for the S23 Ultra at 10x zoom though, with a far nicer color tone overall, not to mention being able to see more detail on the sign, thanks to the longer zoom range.

The S23 Ultra’s extended zoom range can be beneficial, especially for those occasions where you really want to fill your frame with a distant subject. However, I personally find 5x to be a real sweet spot. It allows me to find more interesting compositions than I could with a wide-angle lens, but without being too restrictive.

That’s why I prefer the iPhone 15 Pro Max in this scenario rather than the Galaxy S23 Ultra’s closer 10x zoom. This largely comes down to personal preference, of course, but I find the iPhone’s zoom (as I did with the Pixel 7 Pro’s 5x zoom) much more useful on a day-to-day basis.

Night mode

Both the iPhone 15 Pro Max and Galaxy S23 Ultra can take excellent shots after dark, and these images from the main camera are fine examples. That said, the S23 Ultra’s image has a more yellow color cast to the image, while the iPhone 15 Pro Max maintains slightly finer details, especially in some of the brickwork on the buildings. The S23 Ultra’s image noise processing has smoothed out some of those details.

That detail smoothing is especially noticeable in this nighttime image of the front of a building. While the iPhone has clearly reproduced the details in the brickwork, with noticeable texture on the sandstone blocks, the S23 Ultra has recognized that texture as image noise and so has attempted to smooth it out. The result is an odd-looking smoothed appearance that lacks any of the realism of the iPhone’s image.

This scene is more of a mixed bag. The S23 Ultra has kept some of the bright highlights under better control, while the iPhone has achieved a brighter sky that gives better separation to the tops of the buildings. I don’t really feel either one is especially better than the other here.

Switching to the ultrawide lenses on both phones, it’s immediately obvious that the iPhone’s image is brighter, both in the sky and in the river below. However, it’s a less detailed image, with the S23 Ultra achieving sharper details on the buildings, better control of highlights and less image noise in the river.

However, I much prefer the iPhone’s 5x zoom shot at night to either the 3x or 10x zoom shots from the S23 Ultra. The iPhone has achieved a pin-sharp image here, with great colors and exposure, with even the bright clock face on the left being clearly visible. At 3x, the S23 Ultra is already losing some detail, and at 10x the image is disappointingly mushy and lacking in detail.

The S23 Ultra’s familiar magenta color cast is visible again in this night mode shot, with the iPhone generally producing more natural tones. Both shots are almost equally bright however, with almost nothing to choose between them in terms of clarity and detail.

While the iPhone’s ultrawide night mode shot isn’t quite as sharp as the S23 Ultra’s, Samsung’s phone suffers from some unpleasant noise artifacts in the sky — green-looking blobs where the digital processing clearly hasn’t performed as it should. It’s a disappointing result for the S23 Ultra here, as its shot is otherwise the better of the two.

The night mode zoom results here are the same as I found in the other test. The iPhone 15 Pro Max’s 5x zoom has produced a sharp and clear image with a good handle on image noise. The 3x shot from the S23 Ultra suffers from unpleasant noise artifacts, and the 10x is extremely muddy and lacking in detail.

iPhone 15 Pro Max vs. Galaxy S23 Ultra: Which takes better photos?

It’s been a very close-fought battle between these two powerhouse phones, and the reality is that either phone is superb for photographers wanting to take beautiful images under any conditions. It’s only when you really study the details of each shot side-by-side that you can you tell much difference. And even then, a lot of those perceived differences are subjective. Still, with both phones costing well into four figures, it’s important to nitpick at these details to make sure your money is well spent.

Overall I prefer the images from the iPhone 15 Pro Max. It delivered more-accurate colors in almost all my tests, with the S23 Ultra frequently producing unrealistic color casts from the auto white balance. Samsung’s phone also produces oversaturated images — something that’s been common on Samsung phones for generations — while the iPhone keeps its colors more true to life.

I Took 600+ Photos With the iPhone 15 Pro and Pro Max. Look at My Favorites

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I also prefer the 5x zoom on the Pro Max, which produces better-looking images than the S23 Ultra’s 3x lens and is generally more useful than the Ultra’s 10x lens. And in night mode, I found the iPhone to deliver overall better-looking shots, especially when using the zoom.

But bear in mind that I’m a professional photographer, so what I value in images is accurate color tone and a more neutral-looking image that I could boost manually with contrast or other adjustments in editing apps. If you prefer more vibrant, contrasty images to share with family and friends straight from your phone, then Samsung’s phone may be the better option.

Technologies

Amazon Speeds Up Delivery Even More With 1- and 3-Hour Options

The retailer says the one-hour option is available in hundreds of cities, with discounted shipping for Prime members.

Same-day delivery apparently isn’t fast enough for some Amazon shoppers. The retail giant said on Tuesday it’s adding new shipping options that will get products to front doors within a one- or three-hour window.

The company said in its announcement that the one-hour option is available in hundreds of cities across the US, while the three-hour option is now live in more than 2,000 areas. Amazon’s web page at amazon.com/getitfast shows whether those options are available to shoppers for their location. More than 90,000 products will be available for those shipping windows, the company said.

For those who can’t get those services (including the author of this post, who lives between Austin and San Antonio in Texas), a message will display: «3-hour delivery is currently unavailable. Check back at a later time or shop products with Same-Day delivery below.»

Pricing for the faster delivery options is not cheap: It’ll cost you $20 for one-hour delivery and $15 for three-hour delivery for those without an Amazon Prime account, or $10 and $5 for customers who subscribe to Prime.

Last year, the company rolled out faster Amazon delivery options to 4,000 additional areas.

In a video of the podcast Learn and Be Curious with Doug Herrington, hosted by Amazon’s CEO of worldwide stores, Kandace Kapps, the director of the company’s same-day strategy team, spoke in more detail about the challenges of fast shipping. Kapps discussed shifts in customer buying habits over the last few years, such as more people buying household essentials like toilet paper on Amazon.

She said that Amazon can deliver so quickly by placing same-day delivery hubs close to customers in metro areas and by getting products ready to ship within 15 minutes, aided by warehouse robots.

«I think customers are going to continue to get magically surprised by how fast we can deliver to their doorstop,» Kapps said.

Herrington said fast shipping increases sales: «When we speed up the service, the probability that somebody buys a product from us goes up.»

Other retailers, including Walmart, have been adding same-day delivery options or exploring other ways to speed up shipping times to compete with Amazon.

Removing buyers’ moments of hesitation

Part of Amazon’s strategy, which has involved a massive buildout of locations, deployment of thousands of trucks, deals with other delivery services and investment in logistics software, is actually pretty simple: being there when people need last-minute items or make impulse buys.

«It’s about removing the last moment where you would’ve reconsidered the purchase,» said Stephanie Carls, retail insights expert at coupon and promotional-code website RetailMeNot, a sibling site of CNET. «It changes how you shop, not just how fast you get things.»

Carls said that Amazon’s super-fast delivery is removing the timeframe when people might change their minds about a purchase.

«There used to be a gap between deciding to buy something and actually having it. That’s when you’d price check, rethink it, or decide you didn’t need it after all,» she said. «This closes that gap.»

The retail expert said that competitors, including Walmart and Target, have been speeding up delivery times in some markets. Still, they’re not matching Amazon’s scale or product range at those speeds or levels of consistency.

«And that’s what starts to make everyone else feel slow,» Carls said. «Amazon’s advantage is how tightly connected its technology, inventory and delivery networks are, which makes this level of speed more repeatable.»

Technologies

Dog Health Goes Digital With New AI Chatbot

Fi Intelligence allows you to ask questions of a specially tailored pet health chatbot, but it’s not meant to replace vet visits.

It might be time to rethink what it means to be sick as a dog. On Tuesday, Fi, a smart pet technology company, announced a new AI-powered chatbot to help owners stay on top of their dog’s health using a blend of personal information and generalized dog breed data.

The AI agent, which the company is calling Fi Intelligence, is integrated directly into the Fi app. It has access to all the information gathered about your dog across the entire suite of Fi products, including the Fi Series 3 Plus and Fi Mini dog collars, as well as information and documents uploaded by the pet owner. The service is for dogs only (not cats, rabbits or other pets).

If you already own a Fi smart collar, existing data will be incorporated into the AI agent’s dataset to help it answer your questions.

When creating Fi Intelligence, the company identified a multitude of common questions that dog owners have, including whether their animal friend is walking or sleeping enough, or scratching more than usual. The chatbot was created to help owners find answers to these questions quickly and easily, according to Fi.

Fi designed its agent to answer these questions using a mix of general information about a dog’s breed, personal information and biometric data gathered by Fi smart pet collars.

Pet owners can ask the chatbot questions in plain English and get back detailed responses. Fi Intelligence is equipped to answer general questions, contrast your dog’s current data to previous time periods and compare your dog’s data to other dogs of the same breed.

Fi says its chatbot is different from general-purpose AI agents because it has been trained on a proprietary dataset containing «the largest repository of real-world canine activity, sleep and behavior data in the world.»

Fi Intelligence doesn’t replace a trip to the vet — and the company stresses it’s not supposed to. Rather, the agent is supposed to grant owners «informed confidence» about their dog’s health and can help them «show up [to the vet] with specific, documented observations drawn from weeks of continuous data.»

«The strongest signal from our beta was that owners aren’t using this to replace their vet,» said Fi’s Vice President of Product Darrell Stone. «They’re using it to show up better prepared.»

According to Fi, the Fi Intelligence integration will provide the most complete dog health profile available in the app so far. Fi Intelligence is available to all Fi members immediately.

Technologies

Nvidia Teases DLSS 5 and Gamers Aren’t Impressed

The new AI technology is making some big changes to video game graphics that hardly anyone seems to like.

Nvidia opened its GTC conference with a keynote by CEO Jensen Huang, revealing the company’s latest tech. Among the raft of the company’s AI developments, gamers were treated to the imminent version of its AI-powered upscaling and optimization technology, DLSS (Deep Learning Super Sampling), touted as the «biggest breakthrough in computer graphics».

Nvidia published a video illustrating how DLSS 5 can enhance graphics in Resident Evil Requiem, Starfield and other games, showing before-and-after takes. But gamers weren’t thrilled. In fact, the response to DLSS 5 resembles more of a collective backlash, replete with memes, ridicule and outrage.

Gamers were quick to point out that DLSS 5 transformed the original graphics into something vastly different. Some called the visuals «AI slop» because they look like «yassified» AI-generated filters.

Many worry that DLSS 5 could deviate from a creator’s specific artistic vision. Critics also fear that if this technology becomes the industry standard, video game graphics might start to look the same, losing their unique visual identity.

«Everything about this is a betrayal of these game’s artistry,» said YouTuber The Sphere Hunter in a post on X Monday. «Painting over handcrafted, intentional 3D art with shiny, wrinkly, sunken-in, porous, puckered, fraudulent, filtered nonsense is deeply disrespectful. If you want this, just watch gen-AI videos all day.»

Countless memes mocking the tech’s exaggerated features flooded the internet. Others on social media parodied the effects DLSS 5 could produce in other games.

Ok, you convinced us, NVIDIA DLSS 5 is coming to «Copycat» too 😅 pic.twitter.com/WT2qRRz9EC

— Copycat // OUT NOW 😻 (@GameCopycat) March 17, 2026

In a Q&A on Tuesday, Huang addressed the backlash from gamers, calling them «completely wrong.» Huang underlined that DLSS 5 «enhances and adds generative capability, but it doesn’t change the artistic control» and that «it’s in the direct control of the game developer.»

The team at Digital Foundry, which specializes in game technology and hardware reviews, called it «disruptive and transformative» but was generally positive about it, though they saw some hiccups.

«[The images] looked a little bit uncanny, I would say, but definitely the overall portrayal of those characters is much more sophisticated,» said Oliver Mackenzie, video producer and writer for Digital Foundry.

Bethesda’s official X account replied to comments from members of Digital Foundry about Starfield and The Elder Scrolls IV: Oblivion Remastered, both published by Bethesda.

«This is a very early look, and our art teams will be further adjusting the lighting and final effect to look the way we think works best for each game. This will all be under our artists’ control, and totally optional for players,» the publisher said.

DLSS 5 is set to be released sometime in the fall.

What is DLSS?

Nvidia first released its DLSS tech back in 2018 with its RTX 2080 card: The RTX architecture introduced the Tensor cores, which are essential for accelerating the calculations used by the DLSS AI. The deep learning technology was designed to upscale images and video from low resolution in real time to achieve higher frame rates.

Gamers weren’t impressed at first, but later versions of the technology did perform better in games that supported it. DLSS 4, released last year and tweaked to 4.5 as of January, made significant improvements to detail rendering, reducing motion artifacts, boosting frame rates, and generating more realistic lighting via path tracing (which incorporates interactions with ray-traced lighting).

What does DLSS 5 do?

DLSS 5 works a bit differently than previous versions of the technology. According to Nvidia, DLSS 5 shifts from processing simple pixels to understanding 3D elements. By deconstructing characters into specific components — such as skin, hair and clothing — the AI can render them more consistently. This results in faster performance and much more realistic details, especially for textures and lighting.

Game developers control how DLSS 5 enhances images and to what degree, ensuring it matches the game’s aesthetic. The demo video showcased some positive enhancements, but others looked like sweeping changes to the characters and the environment.

Which games will support DLSS 5 at launch?

On Monday, Nvidia released a list of games slated to support DLSS 5:

AION 2
Assassin’s Creed Shadows
Black State
Cinder City
Delta Force
Hogwarts Legacy
Justice
Naraka: Bladepoint
NTE: Neverness to Everness
Phantom Blade Zero
Resident Evil Requiem
Sea of Remnants
Starfield
The Elder Scrolls IV: Oblivion Remastered
Where Winds Meet

What cards will support DLSS 5?

Nvidia has yet to provide a list of GPUs that will support the new technology. In an FAQ, the company says it will release a list of supported cards closer to its release.