Compare phones
| Global Score | |
| 84.1 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 7.0 Nougat |
| 2020-03-23 | 2017-06-20 |
| 6.26 x 2.96 x 0.35 inches | 6.17 x 3.10 x 0.32 inches |
| 6.63 ounces | 6.31 ounces |
| Midnight blue and Raven black | 16 777 216 |
| Plastic and Plastic | Aluminum |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.4 inches | 5.7 inches |
| 2340 x 1080 pixels | 1920 x 1080 pixels (Full HD) |
| Super AMOLED | IPS LCD |
| 403 pixels per inch | 386 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8 |
| Performance | |
| Exynos 9611 chipset | MediaTek Helio P20 MT6757 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | ARM Cortex-A53, 64-bit, 16 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Mali-T880 MP2 GPU |
| 9.27 | 9.27 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 11.74 | 8.88 |
| Camera | |
| 48.00 MP + 20.00 MP | 13.00 MP + 13.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") 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 | 9.02 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G) and HSPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.1 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 3300mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 5.28 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.2 |
| GPS | GPS |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Samsung Galaxy M21 has an overall score of 84.1, which is much better than the Samsung Galaxy J7 Max's 76.1 general score. Both of these phones come with Android OS, but the Samsung Galaxy M21 has 11 version and Samsung Galaxy J7 Max has Android 7.0 Nougat version. The Samsung Galaxy M21 construction is incredibly newer, but a little bit thicker and a bit heavier than the Samsung Galaxy J7 Max.
The Galaxy M21 features a bit sharper screen than Samsung Galaxy J7 Max, because it has a bit higher screen density, a little bigger screen and a quite better 1080 x 2340 resolution. Samsung Galaxy M21 has a much bigger memory for applications and games than Galaxy J7 Max, because it has 64 GB internal storage capacity and a slot for external memory cards that holds up to 512 GB.
The Samsung Galaxy J7 Max's CPU is very similar to the Samsung Galaxy M21 one, both have 4 GB of RAM and 8 cores. Galaxy M21 features a really longer battery life than Samsung Galaxy J7 Max, because it has 6000mAh of battery capacity against 3300mAh. Galaxy M21 counts with a very superior camera than Samsung Galaxy J7 Max, because although it has a smaller aperture, it also counts with a much better (4K) video definition and a much higher 48 MP resolution back facing camera.
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