Samsung Galaxy S23 Ultra vs Samsung Galaxy Z Flip4 5G
Our Verdict: There's 19 years between the Galaxy Z Flip4 5G and the Galaxy S23 Ultra, so the Galaxy S23 Ultra is ahead on most things. The S23 Ultra 5G has a far higher-resolution main camera, 200MP against the Z Flip4 5G's 12MP, and there's more battery in the S23 Ultra 5G, 5000mAh to 3700mAh, which should mean longer between charges in day-to-day use. The S23 Ultra 5G goes up to 512GB of storage, where the Z Flip4 5G tops out at 256GB, and the S23 Ultra 5G has the sharper display at 500 PPI to 426. Coming from the Z Flip4 5G, the S23 Ultra 5G is a genuine upgrade rather than a token one.
If you'd rather pay up front, the Z Flip4 5G is the cheaper buy at £160 SIM-free.
10 reviews 4.2
10 reviews
Prices updated 28 July 2026
Samsung Galaxy S23 Ultra
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Samsung Galaxy Z Flip4 5G
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|---|---|---|
| Expert Rating | 4.5 10 reviews |
4.2 10 reviews |
| Screen | 6.8" | 6.7" |
| Display | Dynamic AMOLED 2X | Foldable Dynamic AMOLED 2X |
| Resolution | 1440 x 3080 | 1080 x 2640 |
| Pixels Per Inch | 500 | 426 |
| Rear Camera | 200 Megapixels | 12 Megapixels |
| Front Camera | 12 Megapixels | 10 Megapixels |
| Chipset | Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm) | Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm) |
| Battery | 5,000 mAh | 3,700 mAh |
| Storage | 256GB, 512GB | 128GB, 256GB |
| OS | Android 13 | Android |
| 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/6 |
| Bluetooth | 5.3, A2DP, LE | 5.1 with A2DP, LE |
| Dimensions | 163.4 x 78.1 x 8.9 mm | - |
| Weight | 233 grams | 0 grams |
| Water Resistance | IP68 - Dust and water resistant over 1.5 meter and 30 minutes | Not rated |
| Contracts |
£59.00/mo
£30.00 upfront |
- |
| SIM-free | £349.95 | £159.99 |
| Prices updated 28 July 2026 | ||
| Deals | Deals | |
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Frequently Asked Questions
Which has the better screen, the Samsung Galaxy S23 Ultra or Samsung Galaxy Z Flip4 5G?
Both phones have a similar screen size at around 6.8", the Samsung Galaxy S23 Ultra has the sharper display at 500 pixels per inch versus 426, and the Samsung Galaxy S23 Ultra uses a Dynamic AMOLED 2X panel while the Samsung Galaxy Z Flip4 5G has a Foldable Dynamic AMOLED 2X.
Which has the better camera, the Samsung Galaxy S23 Ultra or Samsung Galaxy Z Flip4 5G?
The Samsung Galaxy S23 Ultra features a 200 Megapixels rear camera, while the Samsung Galaxy Z Flip4 5G has a 12 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 Z Flip4 5G?
The Samsung Galaxy Z Flip4 5G is cheaper SIM-free, starting from £159.99.
What storage options are available for the Samsung Galaxy S23 Ultra and Samsung Galaxy Z Flip4 5G?
The Samsung Galaxy S23 Ultra is available in 256GB, 512GB, while the Samsung Galaxy Z Flip4 5G comes in 128GB, 256GB.
What processors do the Samsung Galaxy S23 Ultra and Samsung Galaxy Z Flip4 5G use?
The Samsung Galaxy S23 Ultra is powered by the Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm), while the Samsung Galaxy Z Flip4 5G uses the Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm).
Which is easier to carry and hold, the Samsung Galaxy S23 Ultra or Samsung Galaxy Z Flip4 5G?
The Samsung Galaxy Z Flip4 5G is the more portable of the two: it's 233g lighter at 0 grams.
Which is more water resistant, the Samsung Galaxy S23 Ultra or Samsung Galaxy Z Flip4 5G?
The Samsung Galaxy S23 Ultra is rated IP68 - Dust and water resistant over 1.5 meter and 30 minutes, while the Samsung Galaxy Z Flip4 5G is rated Not rated.
What operating system do the Samsung Galaxy S23 Ultra and Samsung Galaxy Z Flip4 5G run?
The Samsung Galaxy S23 Ultra runs Android 13 and the Samsung Galaxy Z Flip4 5G runs Android. This is one of the biggest factors when choosing between the two, as each ecosystem has its own apps, services and features.