Compare phones
| Global Score | |
| 84.1 | 76.5 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | -- |
| 2020-03-23 | 2017-04-28 |
| 6.26 x 2.96 x 0.35 inches | 5.72 x 2.78 x 0.29 inches |
| 6.63 ounces | 5.93 ounces |
| Midnight blue and Raven black | Black, Blue and White |
| Plastic and Plastic | Glass and Metal |
| Scratch-Resistant Glass | -- |
| -- | $ 421.00 |
| Display / Screen | |
| 6.4 inches | 5.2 inches |
| 2340 x 1080 pixels | 1920 x 1080 pixels (Full HD) |
| Super AMOLED | IPS LCD |
| 403 pixels per inch | 424 pixels per inch |
| 420 cd/m2 brightness | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 8.7 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 835 MSM8998 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 280, 64-bit, 10 nm (Octa-Core 2457 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Adreno 540 GPU |
| 9.27 | 9.45 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 10.1 |
| Camera | |
| 48.00 MP + 20.00 MP | 12.00 MP + 8.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | 27.00mm focal length |
| 0.5 inches (1/2") sensor | 0.34 inches (1/2.9") 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 | 9.68 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | -- |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 3 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 3350mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 5.36 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| 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 | -- |
Comparison review
Galaxy M21 is just a bit better than the Xiaomi Mi 6, with a general score of 84.1 against 76.5. The Galaxy M21 design is newer than the Xiaomi Mi 6's, although it's thicker and somewhat heavier. Xiaomi Mi 6 features a little bit better processing power than Samsung Galaxy M21, and although they both have a Octa-Core processor, the Xiaomi Mi 6 also has a higher amount of RAM.
The Xiaomi Mi 6 counts with a little more vivid display than Galaxy M21, because although it has a quite lower 1080 x 1920 pixels resolution and a bit smaller display, it also counts with more screen brightness and a little more pixels per screen inch. The Galaxy M21 counts with a superior camera than Xiaomi Mi 6, because although it has a smaller camera aperture which is not favorable for taking photos and/or video in low light environments, and they both have the same 30 frames per second video frame rates and the same 3840x2160 (4K) video quality, the Galaxy M21 also counts with a way larger camera sensor providing a way better image quality and a lot more megapixels back facing camera.
Galaxy M21 features a bigger storage capacity for applications and games than Xiaomi Mi 6, because although it has less internal storage, it also counts with a slot for SD memory cards that allows a maximum of 512 GB. The Samsung Galaxy M21 has a superior battery duration than Xiaomi Mi 6, because it has a 6000mAh battery size.
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