Compare phones
| Global Score | |
| 84.1 | 93.6 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 11, 10, 9.0 Pie |
| 2020-03-23 | 2019-05-16 |
| 6.26 x 2.96 x 0.35 inches | 6.40 x 3.04 x 0.31 inches |
| 6.63 ounces | 6.98 ounces |
| Midnight blue and Raven black | Crown silver, Majestic black and Royal gold |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass 6) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 342.00 |
| Display / Screen | |
| 6.4 inches | 6.7 inches |
| 2340 x 1080 pixels | 3040 x 1440 pixels |
| Super AMOLED | Dynamic AMOLED |
| 403 pixels per inch | 502 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8.7 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 855 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| Mali-G72 MP3 GPU | Adreno 640 GPU |
| 9.27 | 9.63 |
| Storage | |
| 64 GB internal memory | 256 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 13.3 |
| Camera | |
| 48.00 MP + 20.00 MP | 12.00 MP + 10.00 MP |
| f/2.00 aperture | f/1.50 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.39 inches (1/2.55") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 11.55 | 10.23 |
| 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 | 4500mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 7.52 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| 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
Samsung Galaxy S10 5G is much better than Samsung Galaxy M21, getting a 93.6 score against 84.1. The Samsung Galaxy S10 5G is an older and a bit heavier phone than Samsung Galaxy M21, but Samsung could make it thinner anyway. Both phones in this comparison review work with the same Android 11 OS. Samsung Galaxy S10 5G has a little more vivid screen than Galaxy M21, because it has a quite bigger screen, a quite greater display pixel density and a better resolution of 1440 x 3040 pixels.
Galaxy S10 5G counts with more storage for games and applications than Samsung Galaxy M21, because although it has no external SD slot, it also counts with 192 GB more internal memory. The Galaxy S10 5G counts with a bit faster CPU than Galaxy M21, and although they both have 8 CPU cores, the Galaxy S10 5G also has 4 GB more RAM memory.
The Galaxy M21 features better battery life than Samsung Galaxy S10 5G, because it has a 33% bigger battery size. Samsung Galaxy M21 captures much clearer photographs and videos than Samsung Galaxy S10 5G, because although it has a way smaller aperture and slower video frame rate, and they both have the same (4K) video definition, the Samsung Galaxy M21 also counts with a way bigger back camera sensor shooting lot better quality photographs and videos and a much better 48 MP resolution camera.
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