Compare phones
| Global Score | |
| 80.6 | 76.7 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 14 | Android 11 |
| 2024-10-29 | 2021-05-27 |
| 6.00 x 2.80 x 0.32 inches | 6.23 x 2.96 x 0.33 inches |
| 6.67 ounces | 6.70 ounces |
| -- | Moonlight White, Neptune Blue and Space Black, |
| Glass | Glass and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.3 inches |
| 2670 x 1200 pixels | 2340 x 1080 pixels |
| OLED | IPS LCD |
| 457 pixels per inch | 409 pixels per inch |
| 3200 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 10.2 | 8.1 |
| Performance | |
| Snapdragon 8 Elite SM8750-AB (3 nm) chipset | MediaTek Helio G85 MT6769Z chipset |
| processor | Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 12 GB RAM | 4 GB RAM |
| Adreno 830 GPU | Mali G52 MC2 GPU |
| 6.21 | 9.09 |
| Storage | |
| 256 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 128 GB) external memory slot |
| 13.3 | 10.02 |
| Camera | |
| 50.00 MP + 32.00 MP | 48.00 MP + 13.00 MP |
| f/1.60 aperture | f/1.80 aperture |
| 23.00mm focal length | -- |
| -- | 0.5 inches (1/2") sensor |
| 7680 x 4320 (30 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (960 fps) (Full HD) slow motion video | 1280 x 720 (120 fps) (HD) slow motion video |
| 12.1 | 11 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSPA |
| Nano SIM | Nano SIM |
| 7 | 6.6 |
| Battery Life | |
| 5400mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 7.12 | 5.92 |
| Other Features | |
| Bluetooth 5.4 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | -- |
| Infra-red port | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass and Gyroscope | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Xiaomi 15 has a general score of 80.6, which is slightly better than the Xiaomi Redmi Note 8 2021's score of 76.7. These devices include Android OS, but Xiaomi 15 has the newer 14 version while Xiaomi Redmi Note 8 2021 has Android 11 version, providing the user some additional features. The Xiaomi 15 construction is newer, a little lighter and a little thinner than Xiaomi Redmi Note 8 2021.
Xiaomi Redmi Note 8 2021 features a much greater performance than Xiaomi 15, although it has a smaller amount of RAM memory, they both have the same number of cores. The Xiaomi 15 features a much sharper screen than Xiaomi Redmi Note 8 2021, because it has a little bit bigger screen, a bit higher 1200 x 2670px resolution and a just a bit higher display density.
The Xiaomi 15 has a much better camera than Xiaomi Redmi Note 8 2021, because it has a bigger diafragm aperture to take better photos in poorly lited environments, a way better video definition and a camera with a better resolution. Xiaomi 15 counts with a very superior storage for apps and games than Xiaomi Redmi Note 8 2021, because although it has no slot for SD memory cards, it also counts with more internal memory capacity.
The Xiaomi 15 has a really longer battery duration than Xiaomi Redmi Note 8 2021, because it has 5400mAh of battery capacity instead of 4000mAh.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.