Compare phones
| Global Score | |
| 91.8 | 81.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 11 | Android 13 |
| 2021-01-29 | -- |
| 5.97 x 2.80 x 0.31 inches | 6.43 x 3.07 x 0.35 inches |
| 6.03 ounces | -- |
| Gray, Phantom pink, Violet and White | -- |
| Aluminum and Plastic | Aluminum and Glass |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 722.00 | -- |
| Display / Screen | |
| 6.2 inches | 6.8 inches |
| 2400 x 1080 pixels | 3080 x 1440 pixels |
| Dynamic AMOLED | Dynamic AMOLED |
| 424 pixels per inch | 500 pixels per inch |
| 1300 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.2 | 8 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 8 Gen 2 (4 nm) chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | processor |
| 8 GB RAM | 8 GB RAM |
| Adreno 660 GPU | Adreno 740 GPU |
| 9.63 | 6.21 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 12.00 MP + 10.00 MP | 200.00 MP + 40.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| 26.00mm focal length | 69.00mm focal length |
| 0.57 inches (1/1.76") sensor | 0.77 inches (1/1.3") sensor |
| 7680 x 4320 (24 fps) video resolution | -- |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 10.78 | 12.43 |
| 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), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM | Nano SIM |
| 10.7 | 10.6 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 5000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | 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, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Galaxy S21 is much better than the Galaxy S23 Ultra, having a general score of 91.8 against 81.5. Both of these phones have Android OS (Operating System), but the Galaxy S21 has older 11 version and Galaxy S23 Ultra has Android 13. The Galaxy S21 has a brighter screen than Galaxy S23 Ultra, although it has a lot worse resolution of 1080 x 2400 pixels, a little bit smaller display and a just a bit worse number of pixels per screen inch.
The Samsung Galaxy S21 has an extremely better processing unit than Samsung Galaxy S23 Ultra. Both of them have 8 processing cores and a 8 GB RAM. The Galaxy S23 Ultra's memory to store more games and applications is very similar to the Galaxy S21 one, they have exactly the same internal memory capacity.
The Galaxy S23 Ultra counts with superior battery life than Samsung Galaxy S21, because it has a 5000mAh battery size instead of 4000mAh. Samsung Galaxy S23 Ultra shoots much clearer photographs and videos than Galaxy S21, because it has a way bigger back-facing camera sensor which provides a way better image and video quality, a larger diafragm aperture to capture better images in low light environments and a camera with much more mega pixels.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.