Compare phones
| Global Score | |
| 98.1 | 79.9 |
| Basic Information | |
| Samsung | Samsung |
| Android 11 | Android 14 |
| 2021-01-29 | 2023-12-11 |
| 6.50 x 2.98 x 0.35 inches | 6.34 x 3.01 x 0.33 inches |
| 8.04 ounces | 6.95 ounces |
| Phantom black and Silver | Brave Black, Fantasy Blue, Optimistic Blue and Personality Yellow |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 966.00 | -- |
| Display / Screen | |
| 6.8 inches | 6.5 inches |
| 3200 x 1440 pixels | 2340 x 1080 pixels |
| Dynamic AMOLED | Super AMOLED |
| 516 pixels per inch | 396 pixels per inch |
| 1500 cd/m2 brightness | 1000 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.8 | 8.8 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Exynos 1280 (5 nm) chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | processor |
| 12 GB RAM | 6 GB RAM |
| Adreno 660 GPU | Mali-G68 GPU |
| 9.72 | 6.12 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 1 TB) external memory slot |
| 10.1 | 15.42 |
| Camera | |
| 108.00 MP + 40.00 MP | 50.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm focal length | 27.00mm focal length |
| 0.75 inches (1/1.33") sensor | 0.36 inches (1/2.76") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 13.75 | 11.11 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G) and LTE (4G) |
| Nano SIM | Nano SIM |
| 10.7 | 9.6 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 5000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.8 | 6.8 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.3 |
| 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
Galaxy S21 Ultra has a general score of 98.1, which is much better than the Samsung Galaxy A25 5G's 79.9 general score. Both of these devices have Android OS (Operating System), but Galaxy S21 Ultra has an older 11 version while Samsung Galaxy A25 5G has Android 14. Although it's the best we are comparing here, the Galaxy S21 Ultra design is older, somewhat heavier and a little bit thicker than the Samsung Galaxy A25 5G.
Galaxy S21 Ultra has a sharper display than Samsung Galaxy A25 5G, because it has a better resolution of 1440 x 3200, a bit larger display, a greater screen density and more brightness. The Galaxy A25 5G has a superior memory capacity for apps and games than Galaxy S21 Ultra, and although they both have equal internal memory capacity, the Galaxy A25 5G also has a slot for an SD memory card that admits up to 1 TB.
Galaxy S21 Ultra features a much faster CPU than Galaxy A25 5G, and although they both have a Octa-Core processing unit, the Galaxy S21 Ultra also has more RAM. The Samsung Galaxy S21 Ultra has a much better camera than Samsung Galaxy A25 5G, and although they both have a same size aperture, the Samsung Galaxy S21 Ultra also has a much better video definition, a much larger camera sensor capturing more light and vivid colors and a much higher resolution camera.
Galaxy A25 5G and Galaxy S21 Ultra have very similar batteries.
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