Compare phones
| Global Score | |
| 87.5 | 84.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 12 | Android 11, 10 |
| 2022-06-23 | 2020-03-23 |
| 6.43 x 2.99 x 0.30 inches | 6.26 x 2.96 x 0.35 inches |
| 6.88 ounces | 6.63 ounces |
| Moonlight Silver, Nebula Green and Night Black | Midnight blue and Raven black |
| Glass (Corning Gorilla Glass 5) and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.7 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 393 pixels per inch | 403 pixels per inch |
| 1300 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.1 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 870 SM8250-AC (7 nm) chipset | Exynos 9611 chipset |
| Kryo 585, 64-bit (Octa-Core 3200 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 650 GPU | Mali-G72 MP3 GPU |
| 9.81 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 64.00 MP + 20.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.5 inches (1/2") 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 |
| 11.88 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 4500mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 7.52 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
Xiaomi Poco F4 is slightly better than the Samsung Galaxy M21, having a global score of 87.5 against 84.1. Both of these devices include Android OS (operating system), but the Xiaomi Poco F4 has the newer 12 version while Samsung Galaxy M21 has Android 11, providing a couple nice extra features. Xiaomi Poco F4's design is noticeably newer and thinner than Samsung Galaxy M21's, but it is also just a bit heavier.
Xiaomi Poco F4 features just a bit better display than Samsung Galaxy M21, because although it has a little less pixels per inch in the display, it also counts with much more brightness, a little bit larger screen and a bit higher resolution of 1080 x 2400px. The Galaxy M21 features a bigger memory capacity to store more apps and games than Xiaomi Poco F4, because although it has only 64 GB internal storage capacity, it also counts with a slot for an external memory card that holds a maximum of 512 GB.
The Xiaomi Poco F4 features a little faster processing unit than Galaxy M21, and although they both have the same number of cores, the Xiaomi Poco F4 also has a larger amount of RAM. The Galaxy M21 has better battery duration than Xiaomi Poco F4, because it has a 6000mAh battery size. The Xiaomi Poco F4 captures just a bit better photographs and videos than Samsung Galaxy M21, and although they both have a 0.5 inches back camera sensor, the same video frame rates and the same video quality, the Xiaomi Poco F4 also has a back facing camera with a lot higher resolution and a bigger camera aperture for better photography and videos in low-light environments.
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