Compare phones
| Global Score | |
| 84.1 | 76.9 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 9.0 Pie, 7.1 Nougat |
| 2020-03-23 | 2018-01-09 |
| 6.26 x 2.96 x 0.35 inches | 5.97 x 2.95 x 0.31 inches |
| 6.63 ounces | 6.00 ounces |
| Midnight blue and Raven black | 16 777 216 |
| Plastic and Plastic | Metal |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.4 inches | 5.5 inches |
| 2340 x 1080 pixels | 1920 x 1080 pixels (Full HD) |
| Super AMOLED | TFT |
| 403 pixels per inch | 401 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 7.9 |
| Performance | |
| Exynos 9611 chipset | Samsung Exynos 7 Octa 7870 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Mali-T830 MP1 GPU |
| 9.27 | 8.82 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 11.74 | 10.78 |
| Camera | |
| 48.00 MP + 20.00 MP | 13.00 MP + 13.00 MP |
| f/2.00 aperture | f/1.90 aperture |
| 26.00mm focal length | 27.00mm focal length |
| 0.5 inches (1/2") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 11.55 | 9.13 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE (4G), HSPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.1 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 3300mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 5.28 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.1 |
| GPS | GPS |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Samsung Galaxy M21 is slightly better than the Samsung Galaxy On7 Prime, getting a general score of 84.1 against 76.9. The Samsung Galaxy M21 is a way newer cellphone than the Samsung Galaxy On7 Prime, but it is somewhat thicker and just a bit heavier. Both phones in this comparison work with Android OS (operating system), but the Samsung Galaxy M21 has an older 11 version and Samsung Galaxy On7 Prime has Android 9.0 Pie.
The Samsung Galaxy M21 has just a bit better looking display than Galaxy On7 Prime, because it has a little bit greater display density, a larger screen and a little bit higher resolution of 1080 x 2340px. Galaxy M21 features a little bit more memory capacity for games and applications than Samsung Galaxy On7 Prime, and although they both have equal internal memory capacity, the Galaxy M21 also has an external SD slot that admits up to 512 GB.
Samsung Galaxy M21 counts with a little faster CPU than Galaxy On7 Prime. They have 4 GB of RAM and the same number of cores. The Galaxy M21 has a very superior camera than Samsung Galaxy On7 Prime, because although it has a smaller camera aperture which is not recommended for taking images and/or video in low-light environments, it also counts with a camera with way more megapixels, a much larger sensor shooting lot higher quality videos and photographs and a lot higher 3840x2160 video resolution.
Galaxy M21 has a really longer battery performance than Samsung Galaxy On7 Prime, because it has an 82% more battery size.
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