| Global Score | |
| 71.6 | 80.6 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 4.4.2, 4.2.1 | Android 14 |
| 0000-00-00 | 2024-10-29 |
| 5.67 x 2.90 x 0.32 inches | 6.00 x 2.80 x 0.32 inches |
| 5.11 ounces | 6.67 ounces |
| Black | -- |
| -- | Glass |
| $ 300.00 | -- |
| Display / Screen | |
| 5 inches | 6.4 inches |
| 1080 x 1920 pixels (Full HD) | 2670 x 1200 pixels |
| IPS LCD | OLED |
| 441 pixels per inch | 457 pixels per inch |
| -- | 3200 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 10.2 |
| Performance | |
| Qualcomm Snapdragon 800 8974-AB chipset | Snapdragon 8 Elite SM8750-AB (3 nm) chipset |
| Krait 400 (Quad-Core 2360 MHz) processor | processor |
| 2 GB (933 MHz) RAM | 12 GB RAM |
| Adreno 330 (450 MHz) GPU | Adreno 830 GPU |
| 9.27 | 6.21 |
| Storage | |
| 64 GB internal memory | 256 GB internal memory |
| No SD card slot | No SD card slot |
| 7.7 | 13.3 |
| Camera | |
| 13.00 MP + 2.00 MP | 50.00 MP + 32.00 MP |
| f/2.20 aperture | f/1.60 aperture |
| -- | 23.00mm focal length |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (30 fps) video resolution |
| -- | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 8.91 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| HSPA+ (4G), HSDPA, HSUPA, UMTS, EDGE, GPRS and GSM | 5G, 5G |
| SIM | Nano SIM |
| 4.6 | 7 |
| Battery Life | |
| 3050mAh Li-Ion Battery | 5400mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.04 | 7.12 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.4 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass and Gyroscope |
Xiaomi 15 has an overall score of 80.6, which is better than the Xiaomi Mi-3's 71.6 overall score. These phones include Android OS, but Xiaomi 15 has 14 version and Xiaomi Mi-3 has Android 4.4.2 version. Xiaomi 15's design has the same thickness than Xiaomi Mi-3, but it is much heavier. Xiaomi Mi-3 has a much powerful processor than Xiaomi 15, because although it has a lower number of cores (although they are faster) and 10 GB lesser RAM memory, it also counts with a graphics processor.
The Xiaomi 15 counts with a more vivid display than Xiaomi Mi-3, because it has a bit higher display density, a better 1200 x 2670 resolution and a larger display. The Xiaomi 15 takes much better photographs and videos than Xiaomi Mi-3, because it has a camera in the back with way more MP, a way higher video definition and a way larger camera aperture for better low-light images.
The Xiaomi 15 counts with much more memory for applications and games than Xiaomi Mi-3, because it has 192 GB more internal storage. Xiaomi 15 has a much better battery duration than Xiaomi Mi-3, because it has 5400mAh of battery capacity against 3050mAh.
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