| Global Score | |
| 84.1 | 80.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 4.4.2 |
| 2020-03-23 | 2014-06-23 |
| 6.26 x 2.96 x 0.35 inches | 5.59 x 2.85 x 0.32 inches |
| 6.63 ounces | 5.11 ounces |
| Midnight blue and Raven black | Black, Blue, Gold, Red and White |
| Plastic and Plastic | Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 399.00 |
| Display / Screen | |
| 6.4 inches | 5.1 inches |
| 2340 x 1080 pixels | 1080 x 1920 pixels (Full HD) |
| Super AMOLED | Super AMOLED |
| 403 pixels per inch | 576 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | Capacitive, Multi-touch |
| 8.4 | 9.7 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 805 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Krait 450 (Quad-Core 2500 MHz) processor |
| 4 GB RAM | 3 GB (800 MHz) RAM |
| Mali-G72 MP3 GPU | Adreno 420 (500 MHz) GPU |
| 9.27 | 9.45 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSD, microSDHC, microSDXC (up to 128 GB) external memory slot |
| 11.74 | 8.12 |
| Camera | |
| 48.00 MP + 20.00 MP | 16.00 MP + 2.10 MP |
| f/2.00 aperture | f/2.20 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | 0.38 inches (1/2.6") 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 | 1280 x 720 (120 fps) (HD) slow motion video |
| 11.55 | 10.01 |
| 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, UMTS, EDGE, GPRS and GSM |
| Nano SIM, Dual SIM | SIM |
| 6.7 | 6.6 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 2800mAh Li-Ion Battery |
| Non-Removable Battery | Removable Battery |
| 7.52 | 4.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.0 |
| GPS | GPS |
| -- | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Samsung Galaxy M21 is a bit better than the Galaxy S5, having a global score of 84.1 against 80.8. The Samsung Galaxy M21 construction is notably newer than Galaxy S5's, although it's just a bit thicker and heavier. Both devices in this comparison review have Android OS (operating system), but Samsung Galaxy M21 has 11 version and Galaxy S5 has Android 4.4.2.
The Samsung Galaxy S5 features a much better display than Galaxy M21, because although it has a little bit worse 1920 x 1080 resolution and a way smaller display, it also counts with a better count of pixels per inch in the screen. The Samsung Galaxy S5 counts with a bit better hardware performance than Galaxy M21, because although it has lesser cpu cores and a lower amount of RAM memory, it also counts with a graphics co-processor.
The Galaxy M21 counts with a superior camera than Galaxy S5, and although they both have the same 3840x2160 video quality and the same 30 fps video frame rates, the Galaxy M21 also has a way bigger sensor capturing much better quality pictures, a larger diafragm aperture to capture better low light images and videos and a back facing camera with a way better resolution.
Galaxy M21 counts with a superior memory capacity for applications and games than Samsung Galaxy S5, because it has a slot for SD memory cards that admits up to 512 GB and 64 GB internal storage. Galaxy M21 has a much better battery lifetime than Galaxy S5, because it has 6000mAh of battery capacity instead of 2800mAh.
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