Samsung Galaxy S23 Ultra vs Samsung Galaxy S24
Our Verdict: The Galaxy S24 replaced the Galaxy S23 Ultra after a year, and not a lot changed between them. The S23 Ultra 5G has the better camera on paper, 200MP versus 50MP, and the S23 Ultra 5G has the bigger battery of the two, 5000mAh against 4000mAh, which usually means longer between charges. The S23 Ultra 5G has the stronger screen, bigger at 6.8" against 6.2" and sharper at 500 PPI, and storage goes higher on the S23 Ultra 5G, up to 512GB against 256GB. The differences are small, so buy the S23 Ultra 5G if it's cheaper; the S24 just gets software updates for longer.
Over a full contract, the S24 works out around £574 all-in, about £172 less than the S23 Ultra 5G.
10 reviews 4.2
10 reviews
Prices updated 28 July 2026
Samsung Galaxy S23 Ultra
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Samsung Galaxy S24
|
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|---|---|---|
| Expert Rating | 4.5 10 reviews |
4.2 10 reviews |
| Screen | 6.8" | 6.2" |
| Display | Dynamic AMOLED 2X | Dynamic LTPO AMOLED 2X |
| Resolution | 1440 x 3080 | 1080 x 2340 |
| Pixels Per Inch | 500 | 416 |
| Rear Camera | 200 Megapixels | 50 Megapixels |
| Front Camera | 12 Megapixels | 12 Megapixels |
| Chipset | Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm) | Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm) |
| Battery | 5,000 mAh | 4,000 mAh |
| Storage | 256GB, 512GB | 128GB, 256GB |
| OS | Android 13 | Android 14 |
| SIM Type | Nano SIM | Nano SIM |
| Connectivity | Up to 5G | Up to 5G |
| Wi-Fi | 802.11 a/b/g/n/ac/6e | 802.11 a/b/g/n/ac/6e |
| Bluetooth | 5.3, A2DP, LE | 5.3, A2DP, LE |
| Dimensions | 163.4 x 78.1 x 8.9 mm | 147.0 x 70.6 x 7.6 mm |
| Weight | 233 grams | 167 grams |
| Water Resistance | IP68 - Dust and water resistant over 1.5 meter and 30 minutes | IP68 - Dust and water resistant over 1.5 meter and 30 minutes |
| Contracts |
£59.00/mo
£30.00 upfront |
£20.00/mo
£49.00 upfront |
| SIM-free | £349.95 | £279.00 |
| Prices updated 28 July 2026 | ||
| Deals | Deals | |
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Frequently Asked Questions
Is the Samsung Galaxy S23 Ultra or Samsung Galaxy S24 cheaper on contract?
Based on total cost of ownership, the Samsung Galaxy S24 is cheaper on contract at £574.00 over the life of the deal from £20.00 per month with £49.00 upfront.
Which has the better screen, the Samsung Galaxy S23 Ultra or Samsung Galaxy S24?
The Samsung Galaxy S23 Ultra has the bigger screen at 6.8" compared to the Samsung Galaxy S24's 6.2", the Samsung Galaxy S23 Ultra has the sharper display at 500 pixels per inch versus 416, and the Samsung Galaxy S23 Ultra uses a Dynamic AMOLED 2X panel while the Samsung Galaxy S24 has a Dynamic LTPO AMOLED 2X.
Which has the better camera, the Samsung Galaxy S23 Ultra or Samsung Galaxy S24?
The Samsung Galaxy S23 Ultra features a 200 Megapixels rear camera, while the Samsung Galaxy S24 has a 50 Megapixels rear camera. Both devices also have front-facing cameras for selfies and video calls.
Which is cheaper to buy SIM-free, the Samsung Galaxy S23 Ultra or Samsung Galaxy S24?
The Samsung Galaxy S24 is cheaper SIM-free, starting from £279.00.
What storage options are available for the Samsung Galaxy S23 Ultra and Samsung Galaxy S24?
The Samsung Galaxy S23 Ultra is available in 256GB, 512GB, while the Samsung Galaxy S24 comes in 128GB, 256GB.
What processors do the Samsung Galaxy S23 Ultra and Samsung Galaxy S24 use?
The Samsung Galaxy S23 Ultra is powered by the Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm), while the Samsung Galaxy S24 uses the Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm).
Which is easier to carry and hold, the Samsung Galaxy S23 Ultra or Samsung Galaxy S24?
The Samsung Galaxy S24 is the more portable of the two: it's 66g lighter at 167 grams, it's also the more compact phone at 147.0 x 70.6 x 7.6 mm, and is slimmer at 7.6mm thick.
Which is more water resistant, the Samsung Galaxy S23 Ultra or Samsung Galaxy S24?
Both phones share the same water resistance rating of IP68 - Dust and water resistant over 1.5 meter and 30 minutes.
What operating system do the Samsung Galaxy S23 Ultra and Samsung Galaxy S24 run?
The Samsung Galaxy S23 Ultra runs Android 13 and the Samsung Galaxy S24 runs Android 14. This is one of the biggest factors when choosing between the two, as each ecosystem has its own apps, services and features.