Compare phones
| Global Score | |
| 84.1 | 81.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 13 |
| 2020-03-23 | -- |
| 6.26 x 2.96 x 0.35 inches | 6.43 x 3.07 x 0.35 inches |
| 6.63 ounces | -- |
| Midnight blue and Raven black | -- |
| Plastic and Plastic | Aluminum and Glass |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.8 inches |
| 2340 x 1080 pixels | 3080 x 1440 pixels |
| Super AMOLED | Dynamic AMOLED |
| 403 pixels per inch | 500 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 8 Gen 2 (4 nm) chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | processor |
| 4 GB RAM | 8 GB RAM |
| Mali-G72 MP3 GPU | Adreno 740 GPU |
| 9.27 | 6.21 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 10.1 |
| Camera | |
| 48.00 MP + 20.00 MP | 200.00 MP + 40.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 69.00mm focal length |
| 0.5 inches (1/2") sensor | 0.77 inches (1/1.3") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | -- |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 11.55 | 12.43 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 5000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 7.52 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Galaxy M21 is just a bit better than the Samsung Galaxy S23 Ultra, getting an 84.1 score against 81.5. These phones include Android OS (operating system), but the Galaxy M21 has the older 11 version and Samsung Galaxy S23 Ultra has Android 13 version. Galaxy M21's body has the same thickness than the Samsung Galaxy S23 Ultra, but it is extremely heavier.
Samsung Galaxy M21 features a much powerful processing unit than Galaxy S23 Ultra, although it has a smaller amount of RAM memory, they both have a Octa-Core processing unit. Galaxy M21 counts with a little bit better looking screen than Samsung Galaxy S23 Ultra, although it has a lot lower resolution of 1080 x 2340, a little smaller screen and a just a bit worse pixel density.
The Galaxy M21 features a better storage for games and applications than Galaxy S23 Ultra, because although it has only 64 GB internal memory capacity, it also counts with an external SD slot that allows up to 512 GB. The Galaxy M21 features better battery life than Galaxy S23 Ultra, because it has a 20 percent bigger battery capacity.
Samsung Galaxy S23 Ultra features a slightly better camera than Samsung Galaxy M21, because it has a larger camera aperture to capture better low light images and video, a much bigger sensor which gives a much better image and video quality and a lot more mega pixels camera in the back.
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