Compare phones
| Global Score | |
| 79.3 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 5.1 | Android 11, 10 |
| 2015-08-13 | 2020-03-23 |
| 6.08 x 2.98 x 0.27 inches | 6.26 x 2.96 x 0.35 inches |
| 5.40 ounces | 6.63 ounces |
| Black, Gold and Gray | Midnight blue and Raven black |
| Glass; metal | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 439.00 | -- |
| Display / Screen | |
| 5.7 inches | 6.4 inches |
| 1440 x 2560 pixels (Quad HD / 2K) | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 515 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 9.4 | 8.4 |
| Performance | |
| Exynos 7 Octa 7420 chipset | Exynos 9611 chipset |
| ARM Cortex-A57 and ARM Cortex-A53, 64-bit (Single-Core 2100 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| ARM Mali-T760 MP8 GPU | Mali-G72 MP3 GPU |
| 8.46 | 9.27 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 7.7 | 11.74 |
| Camera | |
| 16.00 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 |
| 0.38 inches (1/2.6") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 10.01 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), HSPA, HSUPA, EDGE, GPRS, GSM and CDMA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.8 | 6.7 |
| Battery Life | |
| 3000mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 336 hours standby time 28 hours talk time | -- |
| 4.96 | 7.52 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| -- | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy M21 is a bit better than the Galaxy S6 edge+, getting a general score of 84.1 against 79.3. The Galaxy M21 body is newer than the Galaxy S6 edge+'s, although it's a lot thicker and somewhat heavier. Both of these devices include Android OS, but Galaxy M21 has 11 version while Galaxy S6 edge+ has Android 5.1, providing some additional features.
The Galaxy M21 counts with a little bit better hardware performance than Samsung Galaxy S6 edge+, and although they both have 4 GB of RAM, the Galaxy M21 also has 7 more cores. The Galaxy S6 edge+ features a brighter screen than Samsung Galaxy M21, because although it has a bit smaller screen, it also counts with a better 2560 x 1440 resolution and more pixels per inch of screen.
Samsung Galaxy M21 takes better pictures and videos than Galaxy S6 edge+, because although it has a smaller aperture, and they both have the same 30 frames per second video frame rate and the same 3840x2160 (4K) video resolution, the Samsung Galaxy M21 also counts with a lot larger sensor taking more light and vivid colors and a camera with way more mega-pixels.
The Samsung Galaxy M21 features a lot bigger storage capacity to install applications and games than Samsung Galaxy S6 edge+, and although they both have the same 64 GB internal storage, the Samsung Galaxy M21 also has a slot for an SD memory card that supports a maximum of 512 GB. The Galaxy M21 has a way better battery life than Samsung Galaxy S6 edge+, because it has a 6000mAh battery size against 3000mAh.
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