Compare phones
| Global Score | |
| 74.5 | 86.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 11, 10 |
| 2021-01-04 | 2020-03-05 |
| 6.46 x 2.99 x 0.36 inches | 6.27 x 2.96 x 0.35 inches |
| 6.91 ounces | 6.74 ounces |
| Black, Blue and White | Black, Blue and Red |
| Plastic and Plastic | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| $ 170.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 1600 x 720 pixels | 2340 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 270 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.2 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 450 SDM450 chipset | Exynos 9611 chipset |
| Cortex-A53, 64-bit, 14 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 | 6 GB RAM |
| Adreno 506 GPU | Mali-G72 MP3 GPU |
| 8.91 | 9.36 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 1 TB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.12 | 11.74 |
| Camera | |
| 13.00 MP + 5.00 MP | 64.00 MP + 32.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| -- | 0.59 inches (1/1.7") 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 |
| 8.8 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 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 |
| 6.6 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 7.52 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy M31 is better than Samsung Galaxy A02s, getting a overall score of 86.5 against 74.5. Both of these phones include the same Android 11 OS (Operating System). The Samsung Galaxy M31 body is a little lighter and a little bit thinner than the Samsung Galaxy A02s, even though it was released just 10 months before.
Galaxy M31 has a little faster processing unit than Samsung Galaxy A02s, and although they both have a Octa-Core CPU, the Galaxy M31 also has a higher amount of RAM memory. Galaxy M31 has a much better looking display than Galaxy A02s, because although it has a bit smaller screen, it also counts with a higher display density and a lot better resolution of 1080 x 2340.
Galaxy M31 has a lot better camera than Samsung Galaxy A02s, because it has a back camera with a much better resolution, a lot better 3840x2160 (4K) video resolution and a bigger camera aperture to capture better photography and video in low light environments. Galaxy M31 features a little bit more storage to store more games and applications than Samsung Galaxy A02s, because although it has a SD memory slot that admits 512 GB smaller, it also counts with more internal memory capacity.
Samsung Galaxy M31 features longer battery performance than Samsung Galaxy A02s, because it has 6000mAh of battery capacity against 5000mAh.
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