Compare phones
| Global Score | |
| 73.5 | 98.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 14 | Android 11 |
| -- | 2021-01-29 |
| 6.30 x 3.02 x 0.33 inches | 6.50 x 2.98 x 0.35 inches |
| 7.05 ounces | 8.04 ounces |
| Black, Fantasy Blue, Optimistic Blue and Personality Yellow | 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 |
| 800 cd/m2 brightness | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.6 | 9.8 |
| Performance | |
| Mediatek Helio G99 MT6789 (6 nm) chipset | Qualcomm Snapdragon 888 chipset |
| processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 8 GB RAM | 12 GB RAM |
| Mali-G57 MC2 GPU | Adreno 660 GPU |
| 6.21 | 9.72 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 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 | 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
Galaxy S21 Ultra is much better than the Samsung Galaxy A15, getting a 98.1 score against 73.5. These phones have Android operating system, but the Galaxy S21 Ultra has an older 11 version and Samsung Galaxy A15 has Android 14. Galaxy S21 Ultra is a somewhat heavier and a little thicker cellphone than Samsung Galaxy A15.
Samsung Galaxy S21 Ultra has a much powerful processor than Samsung Galaxy A15, and although they both have a Octa-Core CPU, the Samsung Galaxy S21 Ultra also has a higher amount of RAM memory. Galaxy S21 Ultra has a brighter screen than Galaxy A15, because it has a bit bigger display, a greater display pixel density, much more brightness and a higher 1440 x 3200 resolution.
Galaxy S21 Ultra takes way better photos and videos than Galaxy A15, and although they both have a same size aperture, the Galaxy S21 Ultra also has a camera with lot more megapixels. The Samsung Galaxy S21 Ultra's memory capacity for games and applications is very similar to the Samsung Galaxy A15 one, both of them have the same 128 GB internal storage capacity.
Galaxy S21 Ultra's battery lifetime is very similar to the Galaxy A15 one.
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