Samsung Galaxy S21 FE 5G vs Samsung Galaxy S24 Ultra
Our Verdict: The Galaxy S24 Ultra is three years newer than the Galaxy S21 FE 5G, and it shows in the specs. The S24 Ultra has the better camera on paper, 200MP versus 12MP, and the S24 Ultra has the bigger battery of the two, 5000mAh against 4500mAh, which usually means longer between charges. The S24 Ultra has the stronger screen, bigger at 6.8" against 6.4" and sharper at 501 PPI, and the S24 Ultra goes up to 1TB of storage, where the S21 FE 5G tops out at 256GB. The S24 Ultra is the better phone; upgrade from the S21 FE 5G if you want the newer hardware, or hold on if yours still does the job.
Buying outright, the S21 FE 5G starts at £130 SIM-free.
10 reviews 4.6
11 reviews
Prices updated 28 July 2026
Samsung Galaxy S21 FE 5G
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Samsung Galaxy S24 Ultra
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|---|---|---|
| Expert Rating | 3.9 10 reviews |
4.6 11 reviews |
| Screen | 6.4" | 6.8" |
| Display | Dynamic AMOLED 2X capacitive touchscreen | Dynamic LTPO AMOLED 2X |
| Resolution | 1080 x 2400 | 1440 x 3088 |
| Pixels Per Inch | 411 | 501 |
| Rear Camera | 12 Megapixels | 200 Megapixels |
| Front Camera | 32 Megapixels | 12 Megapixels |
| Chipset | Exynos 990 | Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm) |
| Battery | 4,500 mAh | 5,000 mAh |
| Storage | 128GB, 256GB | 256GB, 512GB, 1TB |
| OS | Android 12 | Android 14 |
| SIM Type | Nano SIM | nano-SIM and e-SIM |
| Connectivity | Up to 5G | Up to 5G |
| Wi-Fi | 802.11 a/b/g/n/ac/6 | 802.11 a/b/g/n/ac/6e/7 |
| Bluetooth | 5.0 with A2DP, LE | 5.3 with A2DP, LE |
| Dimensions | 159.8 x 74.5 x 8.4 mm | 162.3 x 79 x 8.6 mm |
| Weight | 177 grams | 232 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 | - |
£27.25/mo
£20.00 upfront |
| SIM-free | £129.99 | £429.99 |
| Prices updated 28 July 2026 | ||
| Deals | Deals | |
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Frequently Asked Questions
Which has the better screen, the Samsung Galaxy S21 FE 5G or Samsung Galaxy S24 Ultra?
The Samsung Galaxy S24 Ultra has the bigger screen at 6.8" compared to the Samsung Galaxy S21 FE 5G's 6.4", the Samsung Galaxy S24 Ultra has the sharper display at 501 pixels per inch versus 411, and the Samsung Galaxy S21 FE 5G uses a Dynamic AMOLED 2X capacitive touchscreen panel while the Samsung Galaxy S24 Ultra has a Dynamic LTPO AMOLED 2X.
Which has the better camera, the Samsung Galaxy S21 FE 5G or Samsung Galaxy S24 Ultra?
The Samsung Galaxy S21 FE 5G features a 12 Megapixels rear camera, while the Samsung Galaxy S24 Ultra has a 200 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 S21 FE 5G or Samsung Galaxy S24 Ultra?
The Samsung Galaxy S21 FE 5G is cheaper SIM-free, starting from £129.99.
What storage options are available for the Samsung Galaxy S21 FE 5G and Samsung Galaxy S24 Ultra?
The Samsung Galaxy S21 FE 5G is available in 128GB, 256GB, while the Samsung Galaxy S24 Ultra comes in 256GB, 512GB, 1TB.
What processors do the Samsung Galaxy S21 FE 5G and Samsung Galaxy S24 Ultra use?
The Samsung Galaxy S21 FE 5G is powered by the Exynos 990, while the Samsung Galaxy S24 Ultra uses the Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm).
Which is easier to carry and hold, the Samsung Galaxy S21 FE 5G or Samsung Galaxy S24 Ultra?
The Samsung Galaxy S21 FE 5G is the more portable of the two: it's 55g lighter at 177 grams, it's also the more compact phone at 159.8 x 74.5 x 8.4 mm.
Which is more water resistant, the Samsung Galaxy S21 FE 5G or Samsung Galaxy S24 Ultra?
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 S21 FE 5G and Samsung Galaxy S24 Ultra run?
The Samsung Galaxy S21 FE 5G runs Android 12 and the Samsung Galaxy S24 Ultra 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.