Compare phones
| Global Score | |
| 81.5 | 91.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 13 | Android 11 |
| -- | 2021-01-29 |
| 6.43 x 3.07 x 0.35 inches | 5.97 x 2.80 x 0.31 inches |
| -- | 6.03 ounces |
| -- | Gray, Phantom pink, Violet and White |
| Aluminum and Glass | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 722.00 |
| Display / Screen | |
| 6.8 inches | 6.2 inches |
| 3080 x 1440 pixels | 2400 x 1080 pixels |
| Dynamic AMOLED | Dynamic AMOLED |
| 500 pixels per inch | 424 pixels per inch |
| -- | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 8 | 9.2 |
| Performance | |
| Qualcomm Snapdragon 8 Gen 2 (4 nm) chipset | Qualcomm Snapdragon 888 chipset |
| processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 8 GB RAM | 8 GB RAM |
| Adreno 740 GPU | Adreno 660 GPU |
| 6.21 | 9.63 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 200.00 MP + 40.00 MP | 12.00 MP + 10.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 69.00mm focal length | 26.00mm focal length |
| 0.77 inches (1/1.3") sensor | 0.57 inches (1/1.76") sensor |
| -- | 7680 x 4320 (24 fps) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 12.43 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 10.6 | 10.7 |
| Battery Life | |
| 5000mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.0 |
| 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 Galaxy S21 has an overall score of 91.8, which is better than Samsung Galaxy S23 Ultra's 81.5 score. Both phones we are comparing here have Android OS (operating system), but Galaxy S21 has the previous 11 version and Samsung Galaxy S23 Ultra has Android 13. The Samsung Galaxy S21 features a better looking display than Samsung Galaxy S23 Ultra, although it has a little less pixels per inch of display, a way lower resolution of 1080 x 2400px and a little smaller screen.
The Samsung Galaxy S21 and Samsung Galaxy S23 Ultra have similar memory capacity to install games and applications, they have exactly the same 128 GB internal storage capacity. The Samsung Galaxy S21 features an extremely better processor than Samsung Galaxy S23 Ultra. Both of them have the same number of cores and a 8 GB RAM.
Galaxy S23 Ultra counts with better battery lifetime than Galaxy S21, because it has a 5000mAh battery size instead of 4000mAh. Galaxy S23 Ultra has a superior camera than Samsung Galaxy S21, because it has a way larger camera sensor capturing lot better quality videos and photos, a larger aperture for better low-light captures and videos and a back-facing camera with much more MP.
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