Samsung
Galaxy S23
6.1 inch Dynamic AMOLED 2XDisplay
Up to 120HzRefresh
Snapdragon 8 Gen 2 for GalaxyChip
128GBStorage
£15From monthly
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Compare phone specs side by side
Pick any three phones, then compare the screen, chipset, cameras, battery, storage, live monthly pricing and the best GetLow deal routes in one clean view.
Apple
iPhone 17 Pro Max
6.9-inch Super Retina XDR OLEDDisplay
Up to 120HzRefresh
Apple A19 ProChip
256GB, 512GB, 1TB, 2TBStorage
£29.99From monthly
Samsung
Galaxy S26 Ultra
6.9-inch Dynamic LTPO AMOLED 2XDisplay
Up to 120HzRefresh
Snapdragon 8 Elite Gen 5Chip
256GB, 512GB, 1TBStorage
£42From monthly
Main spec snapshot
The quick buying view: screen, performance, camera, battery and live contract position before you dive into the full table.
| Display | Galaxy S236.1 inch Dynamic AMOLED 2X, 1080 x 2340 | iPhone 17 Pro Max6.9-inch Super Retina XDR OLED, 1320 x 2868 | Galaxy S26 Ultra6.9-inch Dynamic LTPO AMOLED 2X, 1440 x 3120 |
|---|---|---|---|
| Performance | Galaxy S23Snapdragon 8 Gen 2 for Galaxy with Android (One UI) | iPhone 17 Pro MaxApple A19 Pro with iOS 26 | Galaxy S26 UltraSnapdragon 8 Elite Gen 5 with Android 16, One UI 8.5 |
| Rear camera | Galaxy S2350MP wide + 10MP telephoto (3x) + 12MP ultrawide | iPhone 17 Pro Max48MP + 48MP + 48MP | Galaxy S26 Ultra200MP + 50MP + 50MP + 12MP |
| Battery | Galaxy S233,900mAh | iPhone 17 Pro Max5,088mAh | Galaxy S26 Ultra5,000mAh |
| Best live price | Galaxy S23£15 per month, upfront from £9 | iPhone 17 Pro Max£29.99 per month, upfront from £0 | Galaxy S26 Ultra£42 per month, upfront from £10 |
Top deal routes
Each phone gets the same four routes: our recommended value pick, the cheapest monthly deal, the lowest total contract cost and the lowest upfront route.
Galaxy S23
mobiles.co.uk on iD Mobile
128GB, Unlimited, 24 months, £29 upfront
£20.99/mo
iPhone 17 Pro Max
mobiles.co.uk on iD Mobile
256GB, Unlimited, 24 months, £529 upfront
£29.99/mo
Galaxy S26 Ultra
mobiles.co.uk on iD Mobile
256GB, Unlimited, 24 months, £199 upfront
£44.99/mo
Full side-by-side specs
The deeper detail for buyers choosing between the three: size, cameras, battery, charging, durability, storage and current deal coverage.
| Screen | Galaxy S236.1 inch Dynamic AMOLED 2X, 1080 x 2340 | iPhone 17 Pro Max6.9-inch Super Retina XDR OLED, 1320 x 2868 | Galaxy S26 Ultra6.9-inch Dynamic LTPO AMOLED 2X, 1440 x 3120 |
|---|---|---|---|
| Refresh rate | Galaxy S23Up to 120Hz | iPhone 17 Pro MaxUp to 120Hz | Galaxy S26 UltraUp to 120Hz |
| Chipset | Galaxy S23Snapdragon 8 Gen 2 for Galaxy | iPhone 17 Pro MaxApple A19 Pro | Galaxy S26 UltraSnapdragon 8 Elite Gen 5 |
| Operating system | Galaxy S23Android (One UI) | iPhone 17 Pro MaxiOS 26 | Galaxy S26 UltraAndroid 16, One UI 8.5 |
| Rear camera | Galaxy S2350MP wide + 10MP telephoto (3x) + 12MP ultrawide | iPhone 17 Pro Max48MP + 48MP + 48MP | Galaxy S26 Ultra200MP + 50MP + 50MP + 12MP |
| Front camera | Galaxy S2312MP | iPhone 17 Pro Max18MP | Galaxy S26 Ultra12MP |
| Battery | Galaxy S233,900mAh | iPhone 17 Pro Max5,088mAh | Galaxy S26 Ultra5,000mAh |
| Charging | Galaxy S2325W wired / 15W wireless | iPhone 17 Pro Max40W wired, 25W MagSafe | Galaxy S26 Ultra60W wired |
| Storage options | Galaxy S23128GB | iPhone 17 Pro Max256GB, 512GB, 1TB, 2TB | Galaxy S26 Ultra256GB, 512GB, 1TB |
| Colours | Galaxy S23Cream | iPhone 17 Pro MaxSilver, Cosmic Orange, Deep Blue | Galaxy S26 UltraCobalt Violet, Sky Blue, Black, White, Silver Shadow, Pink Gold |
| Dimensions | Galaxy S23146.3 x 70.9 x 7.6 mm | iPhone 17 Pro Max163.4 x 78.0 x 8.75 mm | Galaxy S26 Ultra163.6 x 78.1 x 7.9 mm |
| Weight | Galaxy S23168g | iPhone 17 Pro Max231g | Galaxy S26 Ultra214g |
| Durability | Galaxy S23IP68 | iPhone 17 Pro MaxIP68 | Galaxy S26 UltraIP68 |
| From monthly | Galaxy S23£15 | iPhone 17 Pro Max£29.99 | Galaxy S26 Ultra£42 |
| From upfront | Galaxy S23£9 | iPhone 17 Pro Max£0 | Galaxy S26 Ultra£10 |
| Lowest total cost | Galaxy S23£563.16 | iPhone 17 Pro Max£1,231.16 | Galaxy S26 Ultra£1,258 |