Compare phones
| Global Score | |
| 74.9 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2016-01-01 | 2020-03-23 |
| 6.37 x 3.19 x 0.29 inches | 6.26 x 2.96 x 0.35 inches |
| 7.05 ounces | 6.63 ounces |
| Champagne gold, Midnight black, Pearl white and Pink | Midnight blue and Raven black |
| Metal | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6 inches | 6.4 inches |
| 1920 x 1080 pixels (Full HD) | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 367 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.8 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 652 8976 chipset | Exynos 9611 chipset |
| ARM Cortex-A72 and ARM Cortex-A53, 64-bit, 28 nm (Octa-Core 1800 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 510 GPU | Mali-G72 MP3 GPU |
| 8.91 | 9.27 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.12 | 11.74 |
| Camera | |
| 13.00 MP + 8.00 MP | 48.00 MP + 20.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 9.46 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| -- | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Dual SIM | Nano SIM, Dual SIM |
| 5.7 | 6.7 |
| Battery Life | |
| 4000mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 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
The Galaxy M21 is much better than the Galaxy A9 (2016), getting an 84.1 score against 74.9. Although the Galaxy M21 is thicker than Galaxy A9 (2016), it's just a little lighter and incredibly newer. Galaxy M21 counts with a little bit better looking screen than Samsung Galaxy A9 (2016), because it has a little bit larger display, a slightly higher resolution of 1080 x 2340 and a little greater screen density.
Galaxy M21 counts with just a bit better processing power than Samsung Galaxy A9 (2016), and although they both have a Octa-Core processor, the Galaxy M21 also has 1 GB more RAM. The Samsung Galaxy M21 shoots much better pictures and videos than Samsung Galaxy A9 (2016), because although it has a smaller aperture, and they both have the same video definition and the same 30 frames per second video frame rate, the Samsung Galaxy M21 also counts with a way higher resolution back camera.
The Galaxy M21 counts with a much greater storage capacity for applications and games than Samsung Galaxy A9 (2016), because it has a SD memory card expansion slot that admits up to 512 GB and 64 GB internal memory capacity. The Galaxy M21 features a superior battery life than Galaxy A9 (2016), because it has a 6000mAh battery capacity.
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