Compare phones
| Global Score | |
| 85.5 | 90.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 14 |
| 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 | -- |
| Plastic and Plastic | Glass (Corning Gorilla Glass) and Titanium |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.8 inches |
| 2400 x 1080 pixels | 3088 x 1440 pixels |
| Super AMOLED | Dynamic AMOLED |
| 405 pixels per inch | 501 pixels per inch |
| -- | 2600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 10.2 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 8 Gen 4 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | processor |
| 4 GB RAM | 12 GB RAM |
| Mali-G72 MP3 GPU | Yes GPU |
| 9.27 | 6.21 |
| Storage | |
| 128 GB internal memory | 256 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 13.3 |
| Camera | |
| 48.00 MP + 32.00 MP | 200.00 MP + 12.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 24.00mm focal length |
| 0.5 inches (1/2") sensor | 0.77 inches (1/1.3") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (30 fps) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11.55 | 14.74 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 5000mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.3 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Galaxy S25 Ultra is slightly better than Galaxy A51, having a 90.7 score against 85.5. The Galaxy S25 Ultra is a much lighter and notably thinner phone than the Galaxy A51. These devices have Android OS, but Galaxy S25 Ultra has the newer 14 version while Galaxy A51 has Android 11. Samsung Galaxy A51 features a very superior CPU than Samsung Galaxy S25 Ultra, although it has a lower amount of RAM memory, they both have a Octa-Core processing unit.
Galaxy S25 Ultra has a much more vibrant display than Galaxy A51, because it has a little bit bigger screen, a just a little better screen pixels density and a higher 1440 x 3088 resolution. Samsung Galaxy A51 has a little bit better memory to install applications and games than Galaxy S25 Ultra, because although it has 0 less internal memory capacity, it also counts with a SD memory card expansion slot that allows a maximum of 512 GB.
Samsung Galaxy S25 Ultra captures a lot better photographs and videos than Galaxy A51, because it has a much more MP camera in the back, a bigger aperture for better captures in low light situations, a much larger camera sensor which provides a much better photo and video quality and a way better 7680x4320 video quality.
Samsung Galaxy S25 Ultra has improved battery life than Samsung Galaxy A51, because it has 5000mAh of battery capacity.
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