Compare phones
| Global Score | |
| 78.2 | 98.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10 | Android 11 |
| 2020-11-27 | 2021-01-29 |
| 6.39 x 3.04 x 0.38 inches | 6.50 x 2.98 x 0.35 inches |
| 6.98 ounces | 8.04 ounces |
| Cool blue, Power black and Yellow | Phantom black and Silver |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 149.00 | $ 966.00 |
| Display / Screen | |
| 6.5 inches | 6.8 inches |
| 2340 x 1080 pixels | 3200 x 1440 pixels |
| IPS LCD | Dynamic AMOLED |
| 396 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 662 SM6115 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 12 GB RAM |
| Adreno 610 GPU | Adreno 660 GPU |
| 9.09 | 9.72 |
| 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 + 8.00 MP | 108.00 MP + 40.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 24.00mm focal length |
| 0.5 inches (1/2") sensor | 0.75 inches (1/1.33") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (24 fps) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 10.78 | 13.75 |
| 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), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 6000mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 7.52 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Samsung Galaxy S21 Ultra is a lot better than the Xiaomi Poco M3, with a global score of 98.1 against 78.2. Both phones we compare here use Android OS (Operating System), but the Samsung Galaxy S21 Ultra has a newer 11 version and Xiaomi Poco M3 has Android 10. Even though Samsung Galaxy S21 Ultra and the Xiaomi Poco M3 were released only a couple months apart, the Samsung Galaxy S21 Ultra construction is heavier but just a little thinner than the Xiaomi Poco M3.
Galaxy S21 Ultra has just a bit better hardware performance than Xiaomi Poco M3, and although they both have a Octa-Core processing unit, the Galaxy S21 Ultra also has more RAM. Galaxy S21 Ultra counts with an incredibly better looking display than Xiaomi Poco M3, because it has a greater amount of pixels per display inch, a bit bigger display and a better resolution of 1440 x 3200 pixels.
The Samsung Galaxy S21 Ultra takes much better videos and photos than Xiaomi Poco M3, and although they both have a same size camera aperture, the Samsung Galaxy S21 Ultra also has a back-facing camera with a way higher 108 mega-pixels resolution, a way bigger back camera sensor capturing way better quality videos and pictures and a lot higher video resolution.
The Xiaomi Poco M3 features a quite bigger memory for applications, games, photos and videos than Samsung Galaxy S21 Ultra, because although it has only 64 GB internal storage, it also counts with a slot for an external memory card that supports a maximum of 512 GB. The Xiaomi Poco M3 counts with longer battery duration than Samsung Galaxy S21 Ultra, because it has a 20% larger battery size.
Although Samsung Galaxy S21 Ultra is a better device, it is a lot more expensive than the Xiaomi Poco M3, and it doesn't have such a good relation between it's price and quality as the Xiaomi Poco M3. So if you want that extra specs, you can buy the Samsung Galaxy S21 Ultra, but if you don't you can save some money and get the Xiaomi Poco M3, giving up a couple features and specs.
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