Compare phones
| Global Score | |
| 84.2 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2018-10-20 | 2020-03-23 |
| 6.29 x 3.02 x 0.30 inches | 6.26 x 2.96 x 0.35 inches |
| 5.93 ounces | 6.63 ounces |
| 16 777 216 | Midnight blue and Raven black |
| Glass (Corning Gorilla Glass 3) and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6 inches | 6.4 inches |
| 2220 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 411 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.4 |
| Performance | |
| Samsung Exynos 7 Octa 7885 chipset | Exynos 9611 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Mali-G71 MP2 GPU | Mali-G72 MP3 GPU |
| 9.27 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.14 | 11.74 |
| Camera | |
| 24.00 MP + 24.00 MP | 48.00 MP + 20.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.36 inches (1/2.8") sensor | 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 |
| 9.9 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3300mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Samsung Galaxy A7 (2018) has an overall score of 84.2, which is a bit better than the Galaxy M21's general score of 84.1. Even though Samsung Galaxy A7 (2018) is older than Galaxy M21, it's construction is somewhat thinner and lighter. Galaxy M21's processing unit is just as good as the processor in Samsung Galaxy A7 (2018), and although the Galaxy M21 has a lower amount of RAM memory, they both have 8 cores.
The Galaxy M21 has a bit sharper screen than Galaxy A7 (2018), because although it has a bit worse screen pixel density, it also counts with a little bit higher resolution of 1080 x 2340 and a little bit bigger screen. The Samsung Galaxy A7 (2018) features a lot bigger memory for games and applications than Samsung Galaxy M21, and although they both have a slot for an SD memory card that admits up to 512 GB, the Samsung Galaxy A7 (2018) also has 64 GB more internal memory capacity.
The Samsung Galaxy M21 counts with a superior camera than Galaxy A7 (2018), because although it has a tinier diafragm aperture which is not favorable for shooting photographs in low-light environments, it also counts with a much bigger back-facing camera sensor, a much higher video definition and a lot more megapixels camera in the back.
Samsung Galaxy M21 has a way better battery performance than Galaxy A7 (2018), because it has an 82% greater battery size.
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