Compare phones
| Global Score | |
| 80.1 | 84.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 15 | Android 11, 10 |
| -- | 2020-03-23 |
| -- | 6.26 x 2.96 x 0.35 inches |
| -- | 6.63 ounces |
| -- | Midnight blue and Raven black |
| -- | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.7 inches | 6.4 inches |
| -- | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| -- | 403 pixels per inch |
| 3000 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 5 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 8 Elite SM8750-AB (4 nm) chipset | Exynos 9611 chipset |
| processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 16 GB RAM | 4 GB RAM |
| Adreno 830 GPU | Mali-G72 MP3 GPU |
| 6.3 | 9.27 |
| Storage | |
| 512 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 17.6 | 11.74 |
| Camera | |
| 200.00 MP + 32.00 MP | 48.00 MP + 20.00 MP |
| -- | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| 7680 x 4320 (30 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (1920 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 12.87 | 11.55 |
| Networks | |
| -- | Wi-Fi |
| -- | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 7.6 | 6.7 |
| Battery Life | |
| 6000mAh Si - Carbon Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 7.52 | 7.52 |
| Other Features | |
| Bluetooth 5.4 | 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 |
Comparison review
The Galaxy M21 is a bit better than Xiaomi 15 Ultra (Rumored), getting a score of 84.1 against 80.1. Both of these phones come with Android OS, but the Galaxy M21 has an older 11 version while Xiaomi 15 Ultra (Rumored) has Android 15. Galaxy M21 has a really superior hardware performance than Xiaomi 15 Ultra (Rumored), although it has a smaller amount of RAM, they both have a Octa-Core CPU.
The Galaxy M21 counts with a much better looking screen than Xiaomi 15 Ultra (Rumored), although it has a bit smaller display and much less brightness. Xiaomi 15 Ultra (Rumored) features a superior memory to install applications and games or saving photos and videos than Galaxy M21, because although it has no slot for an external memory card, it also counts with more internal memory.
The Xiaomi 15 Ultra (Rumored) shoots much clearer photos and videos than Samsung Galaxy M21, because it has a way better video definition and a lot more mega-pixels camera in the back. Galaxy M21's battery duration is very similar to the battery performance in Xiaomi 15 Ultra (Rumored).
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