Compare phones
| Global Score | |
| 73.5 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 14 | Android 11, 10 |
| -- | 2020-03-23 |
| 6.30 x 3.02 x 0.33 inches | 6.26 x 2.96 x 0.35 inches |
| 7.05 ounces | 6.63 ounces |
| Black, Fantasy Blue, Optimistic Blue and Personality Yellow | Midnight blue and Raven black |
| Plastic and Plastic | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 396 pixels per inch | 403 pixels per inch |
| 800 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.6 | 8.4 |
| Performance | |
| Mediatek Helio G99 MT6789 (6 nm) chipset | Exynos 9611 chipset |
| processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Mali-G57 MC2 GPU | Mali-G72 MP3 GPU |
| 6.21 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 50.00 MP + 13.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| -- | 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 | Mobile Hotspot |
| LTE-A (4G) and LTE (4G) | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 5.6 | 6.7 |
| Battery Life | |
| 5000mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 7.52 |
| Other Features | |
| Bluetooth | 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 |
Comparison review
Samsung Galaxy M21 has a global score of 84.1, which is better than the Galaxy A15's score of 73.5. The Samsung Galaxy M21 is a a little thicker but a bit lighter phone than Galaxy A15. Both of these devices use Android operating system, but the Samsung Galaxy M21 has an older 11 version and Galaxy A15 has Android 14 version.
The Samsung Galaxy M21 features a way better performance than Galaxy A15, although it has a smaller amount of RAM, they both have the same number of cores. Samsung Galaxy A15 features a little sharper screen than Galaxy M21, because although it has a little less pixels per inch of screen, and they both have an equal resolution of 1080 x 2340px, the Samsung Galaxy A15 also counts with a little bit bigger display and much more display brightness.
The Galaxy M21 has more storage capacity to store more games and applications than Samsung Galaxy A15, because although it has just 64 GB internal memory capacity, it also counts with a slot for external memory cards that holds up to 512 GB. Galaxy M21 has a greater camera than Galaxy A15, although it has a camera with lesser mega pixels resolution and a smaller camera aperture which is worse for low light photos and videos.
Galaxy M21 counts with longer battery performance than Samsung Galaxy A15, because it has 6000mAh of battery capacity instead of 5000mAh.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.