Compare phones
| Global Score | |
| 74.3 | 98.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 14 | Android 11 |
| -- | 2021-01-29 |
| 6.34 x 3.01 x 0.33 inches | 6.50 x 2.98 x 0.35 inches |
| 6.95 ounces | 8.04 ounces |
| -- | Phantom black and Silver |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass Victus) |
| -- | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 6.5 inches | 6.8 inches |
| 2340 x 1080 pixels | 3200 x 1440 pixels |
| Super AMOLED | Dynamic AMOLED |
| 396 pixels per inch | 516 pixels per inch |
| 1000 cd/m2 brightness | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.8 | 9.8 |
| Performance | |
| Exynos 1280 (5 nm) chipset | Qualcomm Snapdragon 888 chipset |
| processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 12 GB RAM |
| Mali-G68 GPU | Adreno 660 GPU |
| 6.12 | 9.72 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 1 TB) external memory slot | No SD card slot |
| 15.42 | 10.1 |
| Camera | |
| 50.00 MP + 13.00 MP | 108.00 MP + 40.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 24.00mm focal length |
| -- | 0.75 inches (1/1.33") sensor |
| -- | 7680 x 4320 (24 fps) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.46 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G) and LTE (4G) | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 5.6 | 10.7 |
| Battery Life | |
| 5000mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 6.8 |
| Other Features | |
| Bluetooth 5.3 | Bluetooth 5.1 |
| 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
The Samsung Galaxy S21 Ultra is a lot better than the Galaxy A25, having a global score of 98.1 against 74.3. Both phones in this comparison use Android OS (Operating System), but Samsung Galaxy S21 Ultra has the older 11 version while Galaxy A25 has Android 14 version. Although it's the best in this comparison, Samsung Galaxy S21 Ultra's body is heavier and a bit thicker than the Galaxy A25.
Galaxy S21 Ultra counts with a better looking screen than Samsung Galaxy A25, because it has more brightness, a better 1440 x 3200 resolution, a little bigger display and more pixels per display inch. The Samsung Galaxy A25 features a much better memory capacity to store more games and applications than Samsung Galaxy S21 Ultra, and although they both have equal internal storage capacity, the Samsung Galaxy A25 also has an external SD slot that admits a maximum of 1 TB.
Galaxy S21 Ultra features a very superior processing unit than Galaxy A25, and although they both have the same number of cores, the Galaxy S21 Ultra also has more RAM memory. The Galaxy A25 and the Galaxy S21 Ultra feature incredibly similar battery performance. Samsung Galaxy S21 Ultra takes greater photographs and videos than Samsung Galaxy A25, and although they both have a F1.8 diafragm aperture, the Samsung Galaxy S21 Ultra also has a back camera with lot more mega pixels.
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