Samsung Galaxy S26 Ultra vs iPhone 17

The Samsung Galaxy S26 Ultra and the Apple iPhone 17 are not quite like-for-like: the Galaxy is Samsung's biggest, most fully loaded flagship, while the iPhone 17 is Apple's excellent standard model rather than a Pro. They are separated by around £330, so this is a decision about how much phone you actually need — and, as ever, about iOS versus Android. Here is how they compare, drawn from independent expert reviews of each, with current UK prices.

At a glance

The Samsung Galaxy S26 Ultra (around £1,129.00) is the do-everything flagship: a bigger screen, a built-in stylus, a four-camera system with long zoom, and a large, fast-charging battery. The iPhone 17 (around £799.00) is the more compact, better-value phone, with a fast chip, a smooth 120 Hz screen and a capable dual camera — for £330 less. If you want the most phone possible, the Galaxy delivers; if you want the core modern iPhone experience without paying Pro money, the 17 is the smart pick.

Check the Galaxy S26 Ultra price on Amazon · Check the iPhone 17 price on Amazon

Operating system

Start here, because it outweighs everything else. The Galaxy S26 Ultra runs Android with Samsung's One UI, which is highly customisable and cross-platform, while the iPhone 17 runs iOS, which is simpler and links seamlessly with other Apple devices. If your world is already Apple, the iPhone fits in effortlessly; if you value flexibility or use a Windows PC, the Galaxy is the more open choice. This is the decision to make first.

Design and build

The two are sized very differently. The Galaxy S26 Ultra is the larger phone, with a 6.9-inch screen and an integrated S Pen stylus, yet it stays slim at 7.9 mm and weighs 214 g. The iPhone 17 is the more pocketable of the pair, measuring 8 mm thick with a lighter 177 g body and a compact 6.3-inch footprint. Neither feels anything less than premium. If you want the biggest canvas and a stylus, the Galaxy is the one; if you prefer a phone that disappears into a pocket, the iPhone wins.

Screen

Both use excellent OLED panels at a 120 Hz refresh rate, so scrolling is silky on either. The Galaxy has the size advantage at 6.9 inches and adds a clever hardware privacy filter that stops onlookers reading your screen. The iPhone 17's 6.3-inch display is smaller but superb, with a sharp 460 ppi resolution and a quoted peak brightness of 3000 nits (around 1000 nits in typical use). You are choosing between the Galaxy's sheer size and privacy trick and the iPhone's more manageable, very bright panel.

Performance

The Galaxy has the more powerful silicon. It runs the flagship Snapdragon 8 Elite Gen 5, whereas the iPhone 17 uses Apple's standard A19 — not the Pro version — paired with 8 GB of RAM. In everyday use both are fast and fluid; the Galaxy has more raw headroom for the heaviest tasks, while the iPhone's A19 is still quick and efficient. Unless you push demanding games or exports hard, both feel instant.

Cameras

This is the Galaxy's biggest hardware advantage. It carries four rear cameras — a 200-megapixel main, a 50-megapixel ultra-wide and two telephotos (a 5x and a 3x) — giving it the highest-resolution sensor and real optical zoom. The iPhone 17 has a dual 48-megapixel system: a main camera and a 48-megapixel ultra-wide at a 13 mm equivalent, with no dedicated telephoto, though it films 4K video at up to 60 fps and its main sensor can crop to a 2x zoom. For everyday and wide shots the iPhone is very capable, but if you want long-range zoom and the most flexible camera, the Galaxy is well ahead.

Battery and charging

The Galaxy has the clearer practical edge. It packs a 5000 mAh battery and 60 W charging, while the iPhone 17 carries a smaller 3692 mAh cell and charges more slowly over a cable, with wireless charging up to 25 W. Both last a full day in normal use, but the Galaxy's larger battery and faster top-ups make it the more convenient on a heavy day.

Storage and features

Both start at 256 GB, with 512 GB options, and both run the latest software with years of updates promised. The Galaxy adds its S Pen and a broader set of hardware features to justify its price; the iPhone 17 keeps things focused and pairs its 48 MP cameras with the polished iOS experience. On core storage the two are matched; the Galaxy simply offers more extras.

Price and verdict

At the time of writing the Galaxy S26 Ultra is around £1,129.00 and the iPhone 17 around £799.00 — a £330 gap that is central to the choice.

Buy the Galaxy S26 Ultra if you want the most capable phone available: the bigger screen, the S Pen, the versatile four-camera system with long zoom, and the larger, faster-charging battery. It is a lot more phone, if you will use it and can absorb the price.

Buy the iPhone 17 if you want the core modern iPhone for much less: a fast chip, a 120 Hz screen, a capable dual camera and the iOS ecosystem, in a lighter, more compact body. For most people who do not need an Ultra's extras, the iPhone 17 is the more sensible spend — you are choosing your operating system, then deciding whether the Galaxy's extra hardware is worth £330 to you.