Samsung Galaxy S21 FE 5G vs Samsung Galaxy S25 FE
Buying outright, the S21 FE 5G starts at £130 SIM-free.
10 reviews 4.0
10 reviews
Prices updated 25 July 2026
Samsung Galaxy S21 FE 5G
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Samsung Galaxy S25 FE
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|---|---|---|
| Expert Rating | 3.9 10 reviews |
4.0 10 reviews |
| Screen | 6.4" | 6.7" |
| Display | Dynamic AMOLED 2X capacitive touchscreen | Dynamic LTPO AMOLED 2X |
| Resolution | 1080 x 2400 | 1080 x 2340 |
| Pixels Per Inch | 411 | 385 |
| Rear Camera | 12 Megapixels | 50 Megapixels |
| Front Camera | 32 Megapixels | 12 Megapixels |
| Chipset | Exynos 990 | Exynos 2400 (4 nm) |
| Battery | 4,500 mAh | 4,900 mAh |
| Storage | 128GB, 256GB | 128GB, 256GB, 512GB |
| OS | Android 12 | Android 16 |
| 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 |
| Bluetooth | 5.0 with A2DP, LE | 5.4, A2DP, LE |
| Dimensions | 159.8 x 74.5 x 8.4 mm | 161.3 x 76.6 x 7.4 mm |
| Weight | 177 grams | 190 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 | - |
£23.54/mo
£9.00 upfront |
| SIM-free | £129.99 | £399.99 |
| Prices updated 25 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 S25 FE?
The Samsung Galaxy S25 FE has the bigger screen at 6.7" compared to the Samsung Galaxy S21 FE 5G's 6.4", the Samsung Galaxy S21 FE 5G has the sharper display at 411 pixels per inch versus 385, and the Samsung Galaxy S21 FE 5G uses a Dynamic AMOLED 2X capacitive touchscreen panel while the Samsung Galaxy S25 FE has a Dynamic LTPO AMOLED 2X.
Which has the better camera, the Samsung Galaxy S21 FE 5G or Samsung Galaxy S25 FE?
The Samsung Galaxy S21 FE 5G features a 12 Megapixels rear camera, while the Samsung Galaxy S25 FE 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 S21 FE 5G or Samsung Galaxy S25 FE?
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 S25 FE?
The Samsung Galaxy S21 FE 5G is available in 128GB, 256GB, while the Samsung Galaxy S25 FE comes in 128GB, 256GB, 512GB.
What processors do the Samsung Galaxy S21 FE 5G and Samsung Galaxy S25 FE use?
The Samsung Galaxy S21 FE 5G is powered by the Exynos 990, while the Samsung Galaxy S25 FE uses the Exynos 2400 (4 nm).
Which is easier to carry and hold, the Samsung Galaxy S21 FE 5G or Samsung Galaxy S25 FE?
The Samsung Galaxy S21 FE 5G is the more portable of the two: it's 13g lighter at 177 grams, it's also the more compact phone at 159.8 x 74.5 x 8.4 mm, the Samsung Galaxy S25 FE is slimmer at 7.4mm thick.
Which is more water resistant, the Samsung Galaxy S21 FE 5G or Samsung Galaxy S25 FE?
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 S25 FE run?
The Samsung Galaxy S21 FE 5G runs Android 12 and the Samsung Galaxy S25 FE runs Android 16. This is one of the biggest factors when choosing between the two, as each ecosystem has its own apps, services and features.