Compare phones
| Global Score | |
| 72.8 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2015-12-16 | 2020-03-23 |
| 5.96 x 2.92 x 0.29 inches | 6.26 x 2.96 x 0.35 inches |
| 5.96 ounces | 6.63 ounces |
| Black, Gold, Pink and White | Midnight blue and Raven black |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.5 inches | 6.4 inches |
| 1920 x 1080 pixels (Full HD) | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 401 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.9 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 615 8939 chipset | Exynos 9611 chipset |
| ARM Cortex-A53, 64-bit, 28 nm (Octa-Core 1600 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Adreno 405 GPU | Mali-G72 MP3 GPU |
| 8.73 | 9.27 |
| Storage | |
| 16 GB internal memory | 64 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 6.72 | 11.74 |
| Camera | |
| 13.00 MP + 5.00 MP | 48.00 MP + 20.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| 28.00mm focal length | 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 |
| 8.91 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G) and HSPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 3300mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 7.52 |
| Other Features | |
| Bluetooth 4.1 | 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 |
Comparison review
Galaxy M21 is better than Galaxy A7 (2016), getting an 84.1 score against 72.8. The Galaxy M21 body is way newer, but somewhat heavier and somewhat thicker than Galaxy A7 (2016). Samsung Galaxy M21 counts with just a bit better processing power than Galaxy A7 (2016), and although they both have the same number of cores, the Samsung Galaxy M21 also has 1 GB more RAM.
Galaxy M21 counts with a slightly better looking display than Samsung Galaxy A7 (2016), because it has a bigger screen, a quite better resolution of 1080 x 2340 and a just a bit better pixels density. Galaxy M21 features a much better memory capacity for apps and games than Samsung Galaxy A7 (2016), because it has 64 GB internal storage capacity and a SD memory card expansion slot that admits up to 512 GB.
The Galaxy M21 has a superior battery lifetime than Samsung Galaxy A7 (2016), because it has 6000mAh of battery capacity against 3300mAh. Galaxy M21 features a lot better camera than Samsung Galaxy A7 (2016), because although it has a smaller camera aperture which is not nice for capturing photos in low light environments, it also counts with a way more megapixels back-facing camera and a way better video definition.
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