Compare phones
| Global Score | |
| 84.1 | 77 |
| Basic Information | |
| Samsung | Motorola |
| Android 11, 10 | Android 11 |
| 2020-03-23 | 2021-12-06 |
| 6.26 x 2.96 x 0.35 inches | 6.37 x 2.91 x 0.34 inches |
| 6.63 ounces | 6.38 ounces |
| Midnight blue and Raven black | Baby Blue and Mineral Grey |
| Plastic and Plastic | -- |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 403 pixels per inch | 411 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8.1 |
| Performance | |
| Exynos 9611 chipset | MediaTek Helio G85 MT6769Z (12 nm) chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Cortex, 64-bit (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Mali-G52 MC2 GPU |
| 9.27 | 9.09 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 1 TB) external memory slot |
| 11.74 | 13.02 |
| Camera | |
| 48.00 MP + 20.00 MP | 50.00 MP + 13.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | -- |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 11.55 | 10.45 |
| 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) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.6 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 5000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Samsung Galaxy M21 has an overall score of 84.1, which is a little bit better than Moto G31's 77 global score. Although it's the best in this review, Samsung Galaxy M21's construction is older, a little bit heavier and a little thicker than Moto G31. Both of these phones come with the same Android 11 operating system, so they should offer all the same operating system features.
Samsung Galaxy M21 has a slightly better looking display than Moto G31, although it has a bit worse 1080 x 2340 resolution and a little inferior pixels count per inch in the screen, they both have a screen with the same size. The Moto G31 has a bigger memory to install applications and games than Galaxy M21, and although they both have exactly the same internal memory, the Moto G31 also has an external memory slot that allows a maximum of 1 TB.
The Samsung Galaxy M21 has a little bit better processing power than Moto G31. Both of them have a Octa-Core processing unit and a 4 GB RAM. Samsung Galaxy M21 features a superior camera than Moto G31, because although it has a back camera with less mega-pixels resolution and a smaller aperture which is worse for capturing photos or video in low-light situations, it also counts with a much higher video quality.
The Galaxy M21 counts with better battery lifetime than Motorola Moto G31, because it has a 20 percent greater battery size.
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