Compare phones
| Global Score | |
| 76.1 | 88.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 11 |
| 2020-06-29 | 2021-05-06 |
| 6.61 x 3.02 x 0.32 inches | 6.45 x 3.01 x 0.41 inches |
| 6.81 ounces | 7.41 ounces |
| Black | Mirror Black and Pale Grey |
| Plastic and Plastic | Metal and Plastic |
| $ 194.00 | $ 499.00 |
| Display / Screen | |
| 6.5 inches | 6.7 inches |
| 1600 x 720 pixels | 2400 x 1080 pixels |
| IPS LCD | -- |
| 270 pixels per inch | 393 pixels per inch |
| -- | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.3 | 9.1 |
| Performance | |
| Mediatek Helio P35 chipset | Qualcomm Snapdragon 870 SM8250-AC chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | Kryo 585, 64-bit, 7 nm (Octa-Core 3200 MHz) processor |
| 3 GB RAM | 8 GB RAM |
| PowerVR GE8320 GPU | Adreno 650 GPU |
| 9.27 | 9.81 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 10.1 |
| Camera | |
| 16.00 MP + 13.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 0.33 inches (1/3.06") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.35 | 11.99 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM | Dual SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Xiaomi Black Shark 4 is much better than Galaxy A21, with an 88.3 score against 76.1. The Xiaomi Black Shark 4 construction is newer, but just a little bit heavier and way thicker than Galaxy A21. Both of these phones include Android OS (Operating System), but the Xiaomi Black Shark 4 has the newer 11 version while Galaxy A21 has Android 10 version, so it gives a couple nice extra features and some performance improvements.
Xiaomi Black Shark 4 features an incredibly better looking screen than Samsung Galaxy A21, because it has a little larger screen, a lot higher 1080 x 2400px resolution and a better count of pixels per display inch. The Xiaomi Black Shark 4 counts with a bit faster processor than Galaxy A21, and although they both have a Octa-Core CPU, the Xiaomi Black Shark 4 also has a greater amount of RAM memory.
The Xiaomi Black Shark 4 shoots much clearer photos and videos than Samsung Galaxy A21, and although they both have the same aperture, the Xiaomi Black Shark 4 also has a much higher (4K) video quality, a lot bigger sensor which offers a lot higher image and video quality and a way more MP back facing camera.
The Xiaomi Black Shark 4 features a slightly better memory for apps and games than Samsung Galaxy A21, because although it has no slot for an SD memory card, it also counts with 128 GB internal memory capacity. The Xiaomi Black Shark 4 features just a little bit longer battery performance than Samsung Galaxy A21, because it has a 13% larger battery capacity.
Although Xiaomi Black Shark 4 is a better device, it is a lot more expensive than the Samsung Galaxy A21, and it doesn't have such a good relation between it's price and quality as the Samsung Galaxy A21. So if you need that extra features, you can buy the Xiaomi Black Shark 4, else you can save a couple dollars and buy the Samsung Galaxy A21, giving up some features and specifications.
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