| Global Score | |
| 78.1 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 4.4.2 | Android 11, 10 |
| 2014-06-23 | 2020-03-23 |
| 5.59 x 2.85 x 0.32 inches | 6.26 x 2.96 x 0.35 inches |
| 5.11 ounces | 6.63 ounces |
| Black, Blue, Gold and White | Midnight blue and Raven black |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 249.00 | -- |
| Display / Screen | |
| 5.1 inches | 6.4 inches |
| 1080 x 1920 pixels (Full HD) | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 432 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 805 APQ8084 chipset | Exynos 9611 chipset |
| Krait 450 (Quad-Core 2500 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 2 GB (800 MHz) RAM | 4 GB RAM |
| Adreno 420 (500 MHz) GPU | Mali-G72 MP3 GPU |
| 9.36 | 9.27 |
| Storage | |
| 16 GB internal memory | 64 GB internal memory |
| microSD, microSDHC, microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 6.72 | 11.74 |
| Camera | |
| 16.00 MP + 2.10 MP | 48.00 MP + 20.00 MP |
| f/2.20 aperture | f/2.00 aperture |
| -- | 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 |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 9.79 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA, HSUPA, UMTS, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM | Nano SIM, Dual SIM |
| 7.2 | 6.7 |
| Battery Life | |
| 2800mAh Li-Ion Battery | 6000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 390 hours standby time 21 hours talk time | -- |
| 4.8 | 7.52 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Samsung Galaxy M21 has a general score of 84.1, which is a bit better than the Galaxy S5 Plus's 78.1 global score. Both devices in this comparison review come with Android OS (operating system), but the Samsung Galaxy M21 has an older 11 version while Galaxy S5 Plus has Android 4.4.2 version. The Samsung Galaxy M21 is a newer cellphone than Galaxy S5 Plus, but it is much heavier and a little thicker.
Galaxy S5 Plus features a bit better CPU than Galaxy M21, because although it has a lower amount of RAM and a lower number of cores (although faster), it also counts with an additional graphics co-processor. The Samsung Galaxy S5 Plus has a bit more vivid screen than Galaxy M21, because although it has a little bit lower 1920 x 1080px resolution and a much smaller display, it also counts with a quite better pixel count per display inch.
Samsung Galaxy M21 counts with a much greater storage for games and applications than Galaxy S5 Plus, because it has a slot for an external memory card that supports a maximum of 512 GB and 48 GB more internal memory capacity. Galaxy M21 features a very superior battery lifetime than Galaxy S5 Plus, because it has a 6000mAh battery size instead of 2800mAh.
The Samsung Galaxy M21 features a superior camera than Galaxy S5 Plus, and although they both have the same video frame rate and the same video definition, the Samsung Galaxy M21 also has a back facing camera with lot more mega pixels, a lot bigger camera sensor providing a lot higher image quality and a bigger aperture.
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