Compare phones
| Global Score | |
| 84.1 | 98.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 11 |
| 2020-03-23 | 2021-01-29 |
| 6.26 x 2.96 x 0.35 inches | 6.50 x 2.98 x 0.35 inches |
| 6.63 ounces | 8.04 ounces |
| Midnight blue and Raven black | Phantom black and Silver |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 6.4 inches | 6.8 inches |
| 2340 x 1080 pixels | 3200 x 1440 pixels |
| Super AMOLED | Dynamic AMOLED |
| 403 pixels per inch | 516 pixels per inch |
| 420 cd/m2 brightness | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 9.8 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 888 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 12 GB RAM |
| Mali-G72 MP3 GPU | Adreno 660 GPU |
| 9.27 | 9.72 |
| 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 | 108.00 MP + 40.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | 24.00mm focal length |
| 0.5 inches (1/2") sensor | 0.75 inches (1/1.33") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 11.55 | 13.75 |
| 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), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 7.52 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Galaxy S21 Ultra has a general score of 98.1, which is better than Galaxy M21's 84.1 general score. Both phones in this comparison review have the same Android 11 operating system. The Galaxy S21 Ultra construction has the same thickness than Galaxy M21, but it is heavier. The Samsung Galaxy S21 Ultra features a brighter screen than Galaxy M21, because it has a lot brighter screen, a higher display density, a better 1440 x 3200 resolution and a little larger display.
The Samsung Galaxy S21 Ultra counts with a bit superior CPU than Samsung Galaxy M21, and although they both have the same number of cores, the Samsung Galaxy S21 Ultra also has 8 GB more RAM memory. Galaxy S21 Ultra shoots much better photographs and videos than Samsung Galaxy M21, because it has a bigger aperture to capture better low light photos, a way bigger back camera sensor taking more light and vivid colors, a way better 108 megapixels resolution back facing camera and a much higher video quality.
Galaxy M21 features a bigger memory to install games and applications than Galaxy S21 Ultra, because although it has only 64 GB internal memory, it also counts with a SD card slot that admits a maximum of 512 GB. The Galaxy M21 features better battery performance than Samsung Galaxy S21 Ultra, because it has 6000mAh of battery capacity against 5000mAh.
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