Samsung Galaxy S24 vs iPhone 15: the key differences

A Samsung Galaxy S24 and an iPhone 15
(Image credit: Samsung / Apple / TechRadar)

Samsung has now revealed its Samsung Galaxy S24 phones, with a standard-sized Galaxy S24, a larger Samsung Galaxy S24 Plus and an uber-premium Samsung Galaxy S24 Ultra replacing the company’s excellent Samsung Galaxy S23 line.

While we're yet to fully review them all, you can bet your bottom dollar that all three devices will rank among the best Samsung phones ever made – perhaps even the best phones – and the standard Galaxy S24 has a fair few features in common with Apple’s latest standard model, the iPhone 15.

In this guide, then, we compare everything we know about the iPhone 15 against what we know about the Samsung Galaxy S24.

And for more on the S24 series, check out our hands-on Samsung Galaxy S24 review, our hands-on Samsung Galaxy S24 Plus review, and our full Samsung Galaxy S24 Ultra review.

Samsung Galaxy S24 vs iPhone 15: Specs comparison

Here’s an at-a-glance look at the key specs boasted by both the Samsung Galaxy S24 and the iPhone 15.

Swipe to scroll horizontally
Samsung Galaxy S24 vs iPhone 15: Specs
iPhone 15Samsung Galaxy S24
Dimensions:147.6 x 71.6 x 7.80mm 147 x 70.6 x 7.6mm
Weight:171g167g
Display:6.1-inch Super XDR OLED6.2-inch Dynamic AMOLED
Resolution: 1179 x 2556 pixels1080 x 2340 pixels
Refresh rate:60Hz1Hz-120Hz variable
Chipset:A16 BionicQualcomm Snapdragon 8 Gen 3 / Exynos 2400
Rear cameras: 48MP main (24mm, ƒ/1.78), 12MP ultra-wide (13mm, ƒ/2.2)50MP main (24mm, ƒ/1.8), 12MP ultra-wide (13mm, ƒ/2.2), 10MP telephoto (67mm, ƒ/2.4)
Front camera: 12MP12MP
RAM:6GB8GB
Storage:128GB, 256GB, 512GB128GB, 256GB, 512GB

Samsung Galaxy S24 vs iPhone 15: Price and availability

Samsung Galaxy S24 hands on handheld front straight

The Samsung Galaxy S24 launched in January 2024 (Image credit: Future | Roland Moore-Colyer)

The iPhone 15 was officially unveiled on September 12, 2023, and went on sale on September 15 for the following prices: $799 / £799 / AU$1,499 for the 128GB model, $899 / £899 / AU$1,699 for the 256GB option, and $1,099 / £1,099 / AU$2,049 for the 512GB model.

The Samsung Galaxy S24 was announced on January 17 and Galaxy S24 pre-orders are open now, with the phone shipping on January 31.

It costs $799.99 / £799 for a 128GB model, $859.99 / £859 / AU$1,399 for a 256GB model, and AU$1,599 for a 512GB model. There's no 128GB model in Australia, and no 512GB version in the US or UK.

So the Samsung Galaxy S24 starts at exactly the same price as the iPhone 15 in the US and the UK. It costs less in Australia though for a 256GB model (which is the starting size of the S24 there), and also less there for a 512GB one.

Samsung Galaxy S24 vs iPhone 15: Design and display

On the design front, the iPhone 15 looks a lot like Apple’s other recent iPhones, with the exception of its slightly curved edges and color-infused rear glass panel. It measures 147.6 x 71.6 x 7.8mm, weighs 171g, and comes in either black, blue, green, yellow or pink. There’s an IP68 rating, too, meaning it’s dust-proof and water-resistant, and the iPhone 15 also marks the first Apple smartphone to ship with a USB-C port instead of the company’s proprietary Lightning port.

The iPhone 15 boasts an excellent 6.1-inch Super Retina XDR display (which has an 1179 x 2556 pixel resolution), though its refresh rate is limited to a static 60Hz. The phone does, however, sport Apple’s Dynamic Island – first introduced on the iPhone 14 Pro and iPhone 14 Pro Max – which gives its display a more premium feel, as well as enhanced functionality.

The Samsung Galaxy S24 meanwhile has smaller bezels and flatter edges than its predecessor. It has a glass back, a metal frame, and a small punch-hole camera in the screen, while the rear cameras have a different arrangement to the iPhone's, with no significant housing around them.

Samsung Galaxy S24 hands on handheld back straight

The Samsung Galaxy S24 (Image credit: Future | Roland Moore-Colyer)

It also has an IP68 rating, like the iPhone 15, and it comes in at 147 x 70.6 x 7.6mm and 167g, so it's a similar size too. Like just about every Android phone this also has a USB-C port, and the Samsung Galaxy S24 colors include Onyx Black, Marble Grey, Cobalt Violet, Amber Yellow, Jade Green, Sandstone Orange, and Sapphire Blue.

As for the Samsung Galaxy S24's screen, it has a 6.2-inch AMOLED display (with 1080 x 2340 pixels) and a variable 1Hz to 120Hz refresh rate. That trumps the iPhone 15’s static 60Hz refresh rate, and the Samsung Galaxy S24's screen is brighter too, reaching up to 2,600 nits, compared to 2,000 nits from the iPhone 15.

Samsung Galaxy S24 vs iPhone 15: Cameras

iPhone 15

The iPhone 15's rear array (Image credit: Future / Lance Ulanoff)

The iPhone 15 has a two-camera rear setup comprising a 48MP main lens (f/1.6) and a 12MP ultra-wide lens (f/2.4) with a 120-degree field of view. On the front, there’s a single TrueDepth 12MP lens (f/1.9).

As noted in our iPhone 15 review, this does not count the 2x optical zoom that’s actually part of the 48MP lens. The iPhone 15 takes the middle 12 pixels of the full frame to deliver an optically zoomed-in image.

This is more useful than it sounds, as it's a great way of getting closer to the action without moving closer and, unlike digitally zoomed photos, the quality of these 12MP images is, essentially, optical quality. It's really just a smart live crop. 

Samsung Galaxy S24 review

The Samsung Galaxy S24 (Image credit: Future)

The Samsung Galaxy S24, by contrast, features a full-blown 10MP (ƒ/2.4) telephoto camera (with 3x optical zoom), along with a 50MP wide lens (ƒ/1.8) and a 12MP ultra-wide lens (ƒ/2.2) with a 120-degree field of view.

So the Samsung Galaxy S24 benefits from an extra camera, albeit not that much more versatility once you factor in the iPhone 15's 2x optical quality crop. Both phones also have 12MP selfie cameras, so there's no major difference there.

However, the Samsung Galaxy S24 does have more photography focused AI skills, with for example the ability to move people around in photos, or remove them entirely, and extend the backgrounds of images.

iPhone 15 camera samples

Samsung Galaxy S24 vs iPhone 15: Performance

Apple’s iPhone 15 is powered by what was, for us, 2022’s best mobile chipset, the A16 Bionic, which features a 6-core CPU, 5-core GPU, and a 16-core Neural engine, all backed by 6GB of RAM. Suffice to say, the iPhone 15 is a super speedy smartphone, and although the A16 Bionic isn’t as fast as the new A17 Pro in the iPhone 15 Pro and iPhone 15 Pro Max, it provides more than enough power for everyday mobile-centric tasks, as well as light gaming.

iPhone 15

Playing Asphalt 9: Legends on the iPhone 15 (Image credit: Future / Lance Ulanoff)

To get more granular, in our testing, the iPhone 15's A16 Bionic essentially matched the numbers of the same chipset found in the iPhone 14 Pro. The A16 Bionic also bests Qualcomm's Snapdragon 8 Gen 2, which is the chipset powering the Samsung Galaxy S23.

As for the Galaxy S24, this ships with Qualcomm’s brand new (and even more powerful) Snapdragon 8 Gen 3 chipset. Or at least, it does in the US. However models sold in Europe and most other places are fitted with Samsung’s own Exynos 2400 chips.

Though undeniably powerful, Samsung’s Exynos chipsets are known for being weaker than their Qualcomm counterparts, meaning those in affected regions may have to settle for a slightly less powerful version of the Galaxy S24. 

We don’t yet know how significant these differences could prove to be, but we still think it’s safe to expect performance improvements across the board for all Galaxy S24 models.

In any case, the Samsung Galaxy S24 and iPhone 15 are both very powerful phones then, though the Galaxy S24 has more RAM at 8GB, compared to the iPhone 15's 6GB.

Samsung Galaxy S24 vs iPhone 15: Battery life

Samsung Galaxy S24 review

The Samsung Galaxy S24 (Image credit: Future)

Apple never discloses the official battery capacities of its iPhones, but we’re pretty certain that the iPhone 15 is powered by a 3,349mAh cell. In testing, we found that the device lasted a full day when used casually (though 'full day' in this instance does not mean 24 hours – more like 15 hours).

On the charging front, you’re able to charge the iPhone 15 to 50% in 30 minutes (i.e. the same as the iPhone 14) when using wires, and the phone offers 15W wireless charging speeds.

For the Samsung Galaxy S24, there's a 4,000mAh battery along with 25W wired and 15W wireless charging. So Samsung wins for capacity, but that doesn't necessarily mean it will win for longevity.

We won't know for sure how long the Samsung Galaxy S24's battery lasts until we've put it through a full review, but Samsung for its part claims it delivers up to 25 hours of life when web browsing, up to 29 hours of life for video playback, and up to 78 hours of life when listening to audio, which are promising figures.

Samsung Galaxy S24 vs iPhone 15: Verdict

A Samsung Galaxy S24 and an iPhone 15

(Image credit: Samsung / Apple / TechRadar)

So, if you’re in the market for a new smartphone, should you go for the iPhone 15 or Samsung Galaxy S24? Well, while we haven't fully reviewed the Samsung Galaxy S24 yet, we can draw some conclusions based on specs.

As usual, the biggest differentiator between these two phones is the software they run. If you’re already embedded in, or a fan of, Apple’s iOS operating system, then the iPhone 15 is the natural choice. Similarly, if you’re an Android loyalist, then the Galaxy S24 will almost certainly meet your expectations.

But what if you’re brand agnostic, or someone who’s keen to change from one operating system to the other? Well, there are a few key differences between these two phones, but by and large, the iPhone 15 and Galaxy S24 are very similar smartphones.

The Galaxy S24 costs pretty much the same amount as the iPhone 15, and it looks fairly similar, too (at least, as Androids and iPhones go). Both phones should also be comparable in speed and performance.

The Galaxy S24, however, benefits from a variable refresh rate (which the iPhone 15 doesn’t have), as well as slightly more versatile cameras (you get a whole telephoto lens with the Samsung phone). 

The iPhone 15, on the other hand, benefits from a Dynamic Island, which is sure to appeal to some buyers.

Ultimately, then, it’ll be up to you to figure out what you're looking for in a smartphone, and what features you’re willing to compromise on (or forgo entirely).

You might also like

James Rogerson

James is a freelance phones, tablets and wearables writer and sub-editor at TechRadar. He has a love for everything ‘smart’, from watches to lights, and can often be found arguing with AI assistants or drowning in the latest apps. James also contributes to 3G.co.uk, 4G.co.uk and 5G.co.uk and has written for T3, Digital Camera World, Clarity Media and others, with work on the web, in print and on TV.