Compare phones
| Global Score | |
| 90.7 | 85.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 14 | Android 11, 10 |
| -- | 2019-12-27 |
| -- | 6.24 x 2.90 x 0.31 inches |
| -- | 6.07 ounces |
| -- | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Glass (Corning Gorilla Glass) and Titanium | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 282.00 |
| Display / Screen | |
| 6.8 inches | 6.5 inches |
| 3088 x 1440 pixels | 2400 x 1080 pixels |
| Dynamic AMOLED | Super AMOLED |
| 501 pixels per inch | 405 pixels per inch |
| 2600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 10.2 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 8 Gen 4 chipset | Samsung Exynos 9611 chipset |
| processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 12 GB RAM | 4 GB RAM |
| Yes GPU | Mali-G72 MP3 GPU |
| 6.21 | 9.27 |
| Storage | |
| 256 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 14.14 |
| Camera | |
| 200.00 MP + 12.00 MP | 48.00 MP + 32.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 24.00mm focal length | 26.00mm focal length |
| 0.77 inches (1/1.3") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (30 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 14.74 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.6 | 6.7 |
| Battery Life | |
| 5000mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.3 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy S25 Ultra has a global score of 90.7, which is a little bit better than the Galaxy A51's 85.5 global score. Both phones in our current comparison use Android OS (operating system), but Galaxy S25 Ultra has the newer 14 version while Galaxy A51 has Android 11. The Galaxy S25 Ultra is a incredibly thinner and much lighter phone than the Galaxy A51.
The Samsung Galaxy A51 has a much more powerful processing unit than Galaxy S25 Ultra, although it has a lower amount of RAM memory, they both have 8 CPU cores. Samsung Galaxy S25 Ultra features a much sharper display than Galaxy A51, because it has a quite better pixels density, a quite larger display and a better resolution of 1440 x 3088px.
The Galaxy S25 Ultra counts with a much better camera than Galaxy A51, because it has a lot bigger back camera sensor, a lot better video definition, a bigger diafragm aperture and a back camera with a much higher resolution. The Samsung Galaxy A51 counts with a bit more storage capacity to install games and applications than Samsung Galaxy S25 Ultra, because although it has less internal memory, it also counts with an external SD slot that allows a maximum of 512 GB.
Galaxy S25 Ultra counts with better battery lifetime than Samsung Galaxy A51, because it has a 5000mAh battery size instead of 4000mAh.
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