| Global Score | |
| 80.8 | 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, Red and White | Midnight blue and Raven black |
| Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 399.00 | -- |
| Display / Screen | |
| 5.1 inches | 6.4 inches |
| 1080 x 1920 pixels (Full HD) | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 576 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 9.7 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 805 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 |
| 3 GB (800 MHz) RAM | 4 GB RAM |
| Adreno 420 (500 MHz) GPU | Mali-G72 MP3 GPU |
| 9.45 | 9.27 |
| Storage | |
| 32 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 |
| 8.12 | 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 |
| 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), LTE (4G), HSPA, UMTS, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| SIM | Nano SIM, Dual SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 2800mAh Li-Ion Battery | 6000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 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 |
The Galaxy M21 is slightly better than the Samsung Galaxy S5, with a general score of 84.1 against 80.8. The Galaxy M21 construction is way newer, but just a bit thicker and noticeably heavier than Samsung Galaxy S5. Both phones in our current comparison come with Android OS, but the Galaxy M21 has the older 11 version while Samsung Galaxy S5 has Android 4.4.2.
The Samsung Galaxy S5 has a bit more powerful processing unit than Galaxy M21, because although it has lesser cores and a smaller amount of RAM, it also counts with a graphics processing unit. Galaxy S5 features a better screen than Samsung Galaxy M21, because although it has a little lower 1920 x 1080 resolution and a lot smaller screen, it also counts with a better display pixel density.
The Galaxy M21 shoots better photos and videos 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 larger diafragm aperture to capture better photos and videos in low-light situations, a way larger back-facing camera sensor and a back camera with a way higher resolution.
The Galaxy M21 has a much bigger memory capacity for apps and games than Galaxy S5, because it has a SD memory card expansion slot that holds a maximum of 512 GB and 64 GB internal memory capacity. The Galaxy M21 has a very superior battery performance than Galaxy S5, because it has 6000mAh of battery capacity.
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