Compare phones
| Global Score | |
| 80.1 | 76.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 15 | Android 10 |
| -- | 2020-06-29 |
| -- | 6.61 x 3.02 x 0.32 inches |
| -- | 6.81 ounces |
| -- | Black |
| -- | Plastic and Plastic |
| -- | $ 194.00 |
| Display / Screen | |
| 6.7 inches | 6.5 inches |
| -- | 1600 x 720 pixels |
| AMOLED | IPS LCD |
| -- | 270 pixels per inch |
| 3000 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 5 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 8 Elite SM8750-AB (4 nm) chipset | Mediatek Helio P35 chipset |
| processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 16 GB RAM | 3 GB RAM |
| Adreno 830 GPU | PowerVR GE8320 GPU |
| 6.3 | 9.27 |
| Storage | |
| 512 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 17.6 | 9.84 |
| Camera | |
| 200.00 MP + 32.00 MP | 16.00 MP + 13.00 MP |
| -- | f/1.80 aperture |
| -- | 0.33 inches (1/3.06") sensor |
| 7680 x 4320 (30 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (1920 fps) (Full HD) slow motion video | -- |
| 12.87 | 9.35 |
| 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 |
| 7.6 | 6.7 |
| Battery Life | |
| 6000mAh Si - Carbon Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 7.52 | 5.92 |
| Other Features | |
| Bluetooth 5.4 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Xiaomi 15 Ultra (Rumored) has a score of 80.1, which is slightly better than Galaxy A21's global score of 76.1. These devices include Android operating system, but Xiaomi 15 Ultra (Rumored) has a newer 15 version while Galaxy A21 has Android 10, giving you a lot of extra features. The Xiaomi 15 Ultra (Rumored) body is incredibly thinner and way lighter than Galaxy A21.
The Samsung Galaxy A21 features a lot better performance than Xiaomi 15 Ultra (Rumored), although it has a smaller amount of RAM, they both have a Octa-Core processing unit. Samsung Galaxy A21 features an incredibly better display than Xiaomi 15 Ultra (Rumored), although it has a quite smaller screen.
Xiaomi 15 Ultra (Rumored) shoots much better photos and videos than Samsung Galaxy A21, because it has a much more megapixels camera and a much higher video definition. The Xiaomi 15 Ultra (Rumored) features a way bigger storage capacity for games and applications than Galaxy A21, because although it has no SD card slot, it also counts with 512 GB internal storage.
Xiaomi 15 Ultra (Rumored) counts with a much better battery life than Galaxy A21, because it has a 50 percent larger battery capacity.
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