Samsung Galaxy A51 vs Samsung Galaxy S26 Ultra
The Samsung Galaxy A51 (2020) runs on the Exynos 9611, while the Samsung Galaxy S26 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $399 and $1299. By overall MobileRank rating, the Samsung Galaxy S26 Ultra leads — 84/100 vs 34/100 (a 50-point difference). Key differences: the Samsung Galaxy S26 Ultra has the bigger battery (5000 mAh vs 4000); the main camera is 48 MP vs 200 MP; the Samsung Galaxy S26 Ultra is faster in AnTuTu (3,515,964 vs 355,351); the Samsung Galaxy A51 is noticeably lighter (172g vs 214g).
Samsung Galaxy A51
Samsung Galaxy S26 Ultra
- Lighter: 172g vs 214g
- Cheaper at launch: $399 vs $1299
- Better portability (77/100 vs 51/100)
- Higher AnTuTu: 3515964 vs 355351
- Better Geekbench Single: 3601 vs 365
- Better Geekbench Multi: 10686 vs 1107
- Bigger battery: 5000 vs 4000 mAh
- Better main camera: 200MP vs 48MP
- Higher refresh rate: 120Hz vs 60Hz
- Higher performance (96/100 vs 25/100)
- Better camera (86/100 vs 36/100)
- Longer battery life (61/100 vs 25/100)
- Better display (88/100 vs 51/100)
Comparing the Samsung Galaxy A51 vs the Samsung Galaxy S26 Ultra, the Samsung Galaxy S26 Ultra scores 50 points higher (84/100 vs 34/100). In the "performance" category, the Samsung Galaxy S26 Ultra leads (96/100 vs 25/100). In the "camera" category, the Samsung Galaxy S26 Ultra leads (86/100 vs 36/100). In the "battery" category, the Samsung Galaxy S26 Ultra leads (61/100 vs 25/100). Value score: Samsung Galaxy A51 — 6/100, Samsung Galaxy S26 Ultra — 76/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Samsung Galaxy S26 Ultra significantly outperforms the Samsung Galaxy A51 (96/100 vs 25/100). In the "display" category, the Samsung Galaxy S26 Ultra significantly outperforms the Samsung Galaxy A51 (88/100 vs 51/100). In the "camera" category, the Samsung Galaxy S26 Ultra significantly outperforms the Samsung Galaxy A51 (86/100 vs 36/100). In the "battery" category, the Samsung Galaxy S26 Ultra significantly outperforms the Samsung Galaxy A51 (61/100 vs 25/100). In the "portability" category, the Samsung Galaxy A51 notably outperforms the Samsung Galaxy S26 Ultra (77/100 vs 51/100).
| Specification | Samsung Galaxy A51 | Samsung Galaxy S26 Ultra | |
|---|---|---|---|
| Processor | Exynos 9611 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 355351 | 3515964 | |
| Geekbench Single | 365 | 3601 | |
| Geekbench Multi | 1107 | 10686 | |
| Display | 6.5" AMOLED | 6.9" Dynamic AMOLED 2X | |
| Resolution | — | 3120x1440 | |
| Refresh rate | 60 Hz | 120 Hz | |
| Battery | 4000 mAh | 5000 mAh | |
| Charging | — | 60W | |
| Wireless charging | 0W | 25W | |
| DXOMark (camera) | — | 157 | |
| Main camera | 48 MP | 200 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 32 MP | 12 MP | |
| RAM | 4GB / 6GB | 12GB / 16GB | |
| Storage | 64GB / 128GB | 256GB / 512GB / 1TB | |
| OS | — | Android 16 / One UI 8.5 | |
| Brightness (peak) | — | 2600 nits | |
| NFC | yes | yes | |
| Protection | — | IP68 | |
| Dimensions | 158.5×73.6×7.9 mm | 163.6×78.1×7.9 mm | |
| Weight | 172 g | 214 g | |
| Launch price | $399 | $1299 |
Samsung Galaxy A51
- Main: 48MP
- Front: 32MP
Samsung Galaxy S26 Ultra
- Main: 200MP f/f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 12MP
Samsung Galaxy A51
- 6.5" AMOLED
- Refresh rate: 60 Hz
Samsung Galaxy S26 Ultra
- 6.9" Dynamic AMOLED 2X
- Resolution: 3120x1440
- Refresh rate: 120 Hz
Samsung Galaxy A51
- 4000 mAh
- No wireless charging
Samsung Galaxy S26 Ultra
- 5000 mAh
- NanoReview test: web browsing 10:12 hrs, total 28:50 hrs
- Wired: 60W
- Wireless: 25W
We compared Samsung Galaxy A51 and Samsung Galaxy S26 Ultra, covering their specs and all relevant benchmarks.
Samsung Galaxy S26 Ultra leads Samsung Galaxy A51 by 89.9% in our overall performance rating.
Launch price difference: $900. Samsung Galaxy A51 was $900 cheaper at launch.
performance
In the "performance" category, the Samsung Galaxy S26 Ultra significantly outperforms the Samsung Galaxy A51 (96/100 vs 25/100).
display
In the "display" category, the Samsung Galaxy S26 Ultra significantly outperforms the Samsung Galaxy A51 (88/100 vs 51/100).
camera
In the "camera" category, the Samsung Galaxy S26 Ultra significantly outperforms the Samsung Galaxy A51 (86/100 vs 36/100).
battery
In the "battery" category, the Samsung Galaxy S26 Ultra significantly outperforms the Samsung Galaxy A51 (61/100 vs 25/100).
portability
In the "portability" category, the Samsung Galaxy A51 notably outperforms the Samsung Galaxy S26 Ultra (77/100 vs 51/100).
Which is better: the Samsung Galaxy A51 or the Samsung Galaxy S26 Ultra?
The Samsung Galaxy S26 Ultra significantly outperforms the Samsung Galaxy A51 by 50 points (84/100 vs 34/100).
What is the rating of the Samsung Galaxy A51 and the Samsung Galaxy S26 Ultra?
The Samsung Galaxy A51 has a MobileRank rating of 34/100, the Samsung Galaxy S26 Ultra — 84/100.
Which has the better camera: the Samsung Galaxy A51 or the Samsung Galaxy S26 Ultra?
The Samsung Galaxy S26 Ultra leads on camera score (86/100 vs 36/100).
Which is more powerful: the Samsung Galaxy A51 or the Samsung Galaxy S26 Ultra?
The Samsung Galaxy S26 Ultra leads on performance (96/100 vs 25/100).
Should you choose the Samsung Galaxy A51 over the Samsung Galaxy S26 Ultra?
The Samsung Galaxy A51 is a better fit for everyday use. The Samsung Galaxy S26 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, budget-conscious buyers.