| Global Score | |
| 85.5 | 81.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 13 |
| 2019-12-27 | -- |
| 6.24 x 2.90 x 0.31 inches | 6.43 x 3.07 x 0.35 inches |
| 6.07 ounces | -- |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | -- |
| Plastic and Plastic | Aluminum and Glass |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.8 inches |
| 2400 x 1080 pixels | 3080 x 1440 pixels |
| Super AMOLED | Dynamic AMOLED |
| 405 pixels per inch | 500 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 8 Gen 2 (4 nm) chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | processor |
| 4 GB RAM | 8 GB RAM |
| Mali-G72 MP3 GPU | Adreno 740 GPU |
| 9.27 | 6.21 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 10.1 |
| Camera | |
| 48.00 MP + 32.00 MP | 200.00 MP + 40.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 69.00mm focal length |
| 0.5 inches (1/2") sensor | 0.77 inches (1/1.3") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | -- |
| 1280 x 720 (240 fps) (HD) slow motion video | -- |
| 11.55 | 12.43 |
| 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 Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Galaxy A51 has a general score of 85.5, which is slightly better than Galaxy S23 Ultra's 81.5 general score. Both devices in this comparison come with Android OS (operating system), but Galaxy A51 has the previous 11 version and Galaxy S23 Ultra has Android 13 version. The Galaxy A51 features a much better performance than Galaxy S23 Ultra, although it has a lower amount of RAM, they both have 8 cpu cores.
The Samsung Galaxy A51 features a bit better screen than Samsung Galaxy S23 Ultra, although it has a lot lower 1080 x 2400 resolution, a just a bit worse display pixels density and a bit smaller screen. The Galaxy A51 counts with a much better storage capacity for apps and games than Galaxy S23 Ultra, and although they both have equal 128 GB internal memory, the Galaxy A51 also has an external memory card slot that holds a maximum of 512 GB.
The Galaxy S23 Ultra counts with just a bit better camera than Samsung Galaxy A51, because it has a way bigger back camera sensor taking more light and vivid colors, a lot better 200 MP resolution camera in the back and a larger diafragm aperture to take better photos and videos in low light situations.
Galaxy S23 Ultra features longer battery lifetime than Samsung Galaxy A51, because it has a 5000mAh battery capacity.
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