Compare phones
| Global Score | |
| 71.9 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 8.0 Oreo | Android 11, 10 |
| 2018-06-07 | 2020-03-23 |
| 6.03 x 3.00 x 0.34 inches | 6.26 x 2.96 x 0.35 inches |
| 6.38 ounces | 6.63 ounces |
| 16 777 216 | Midnight blue and Raven black |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 240.00 | -- |
| Display / Screen | |
| 5.5 inches | 6.4 inches |
| 1280 x 720 pixels (HD) | 2340 x 1080 pixels |
| TFT | Super AMOLED |
| 267 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.1 | 8.4 |
| Performance | |
| Samsung Exynos 7 Octa 7884 chipset | Exynos 9611 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 2 GB RAM | 4 GB RAM |
| Mali-T830 MP1 GPU | Mali-G72 MP3 GPU |
| 8.73 | 9.27 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 9.44 | 11.74 |
| Camera | |
| 13.00 MP + 13.00 MP | 48.00 MP + 20.00 MP |
| f/1.70 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 |
| 9.02 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G) and LTE (4G) | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 5.6 | 6.7 |
| Battery Life | |
| 3300mAh 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 |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy M21 has a global score of 84.1, which is better than Samsung Galaxy J7 V (2018)'s general score of 71.9. Both phones in this comparison have Android operating system, but Galaxy M21 has an older 11 version while Samsung Galaxy J7 V (2018) has Android 8.0 Oreo version. Even though the Galaxy M21 is newer than the Samsung Galaxy J7 V (2018), it's just a little bit heavier and a little bit thicker.
Samsung Galaxy M21 features a bit more powerful processor than Galaxy J7 V (2018), and although they both have the same number of cores, the Samsung Galaxy M21 also has a greater amount of RAM. The Galaxy M21 has a sharper screen than Samsung Galaxy J7 V (2018), because it has a way better 1080 x 2340px resolution, way more pixels per inch of screen and a bigger screen.
Galaxy M21 counts with a much greater storage capacity for applications and games than Galaxy J7 V (2018), because it has a SD card slot that admits up to 512 GB and 64 GB internal memory capacity. Samsung Galaxy M21 has a very superior battery lifetime than Galaxy J7 V (2018), because it has 6000mAh of battery capacity instead of 3300mAh.
The Galaxy M21 takes much better photos and videos than Galaxy J7 V (2018), because although it has a smaller camera aperture which is worse for capturing images in low light situations, it also counts with a way better 3840x2160 video definition and a way more MP back-facing camera.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.