Compare phones
| Global Score | |
| 77.7 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 8.0 Oreo, 7.0 Nougat, 6.0 Marshmallow | Android 11, 10 |
| 2016-06-01 | 2020-03-23 |
| 6.17 x 3.04 x 0.27 inches | 6.26 x 2.96 x 0.35 inches |
| 5.96 ounces | 6.63 ounces |
| Gold, Gray and Pink | Midnight blue and Raven black |
| Metal | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 5.7 inches | 6.4 inches |
| 1920 x 1080 pixels (Full HD) | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 386 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.9 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 625 8953 chipset | Exynos 9611 chipset |
| ARM Cortex-A53, 64-bit (Octa-Core 2000 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Adreno 506 GPU | Mali-G72 MP3 GPU |
| 9.09 | 9.27 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 10.02 | 11.74 |
| Camera | |
| 16.00 MP + 8.00 MP | 48.00 MP + 20.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 9.13 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G) and HSPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6 | 6.7 |
| Battery Life | |
| 3300mAh Li - Ion Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 7.52 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy M21 is just a bit better than the Samsung Galaxy C7, with a score of 84.1 against 77.7. Both phones in this review use Android OS, but the Galaxy M21 has the previous 11 version and Samsung Galaxy C7 has Android 8.0 Oreo. Galaxy M21 is a notably newer phone than Samsung Galaxy C7, but it is much thicker and somewhat heavier.
Galaxy M21 has a bit more vivid screen than Samsung Galaxy C7, because it has a little bigger screen, a bit higher resolution of 1080 x 2340 pixels and a quite greater screen density. Galaxy M21 counts with a bigger storage for games and applications than Samsung Galaxy C7, and although they both have the same 64 GB internal storage, the Galaxy M21 also has a SD memory slot that holds up to 512 GB.
The Galaxy M21 has a bit more powerful processing unit than Galaxy C7. They have 8 processing cores and a 4 GB RAM. The Samsung Galaxy M21 has a much longer battery life than Galaxy C7, because it has 6000mAh of battery capacity instead of 3300mAh. Galaxy M21 has a much better camera than Galaxy C7, because although it has a tinier aperture which is worse for low light photography, it also counts with a much higher video definition and a way higher 48 megapixels resolution camera in the back.
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