| Global Score | |
| 81.6 | 76.7 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 5.0, 4.4 | Android 11 |
| 2014-09-03 | 2021-05-27 |
| 6.04 x 3.09 x 0.33 inches | 6.23 x 2.96 x 0.33 inches |
| 6.21 ounces | 6.70 ounces |
| Black, Gold, Pink and White | Moonlight White, Neptune Blue and Space Black, |
| -- | Glass and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 269.00 | -- |
| Display / Screen | |
| 5.7 inches | 6.3 inches |
| 1440 x 2560 pixels (Quad HD / 2K) | 2340 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 515 pixels per inch | 409 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.5 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 805 APQ8084 chipset | MediaTek Helio G85 MT6769Z chipset |
| Krait 450 (Quad-Core 2700 MHz) processor | Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 3 GB (825 MHz) RAM | 4 GB RAM |
| Adreno 420 (500 MHz) GPU | Mali G52 MC2 GPU |
| 9.54 | 9.09 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSD, microSDHC, microSDXC (up to 128 GB) external memory slot | microSDXC (up to 128 GB) external memory slot |
| 8.12 | 10.02 |
| Camera | |
| 16.00 MP + 3.70 MP | 48.00 MP + 13.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| 31.00mm focal length | -- |
| 0.38 inches (1/2.6") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (60 fps) (Full HD) slow motion video | 1280 x 720 (120 fps) (HD) slow motion video |
| 10.01 | 11 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSPA |
| Micro SIM | Nano SIM |
| 7 | 6.6 |
| Battery Life | |
| 3220mAh Li-Ion Battery | 4000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 20 hours talk time | -- |
| 5.2 | 5.92 |
| Other Features | |
| Bluetooth 4.1, EDR | Bluetooth 5.2 |
| GPS | GPS |
| NFC | -- |
| Infra-red port | 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 |
Samsung Galaxy Note 4 has an overall score of 81.6, which is just a bit better than the Xiaomi Redmi Note 8 2021's global score of 76.7. These phones come with Android OS (operating system), but Samsung Galaxy Note 4 has an older 5.0 version and Xiaomi Redmi Note 8 2021 has Android 11 version. Samsung Galaxy Note 4's construction has the same thickness than the Xiaomi Redmi Note 8 2021, but it is just a little bit lighter.
The Samsung Galaxy Note 4 counts with a much better screen than Xiaomi Redmi Note 8 2021, because although it has a little smaller display, it also counts with a better pixel quantity per display inch and a better 2560 x 1440px resolution. Galaxy Note 4 counts with a bit better processing unit than Xiaomi Redmi Note 8 2021, because although it has an inferior number of cores (although they are faster) and a lower amount of RAM, it also counts with a graphics co-processor.
The Xiaomi Redmi Note 8 2021 counts with a bit better camera than Galaxy Note 4, and although they both have the same video definition and the same 30 frames per second video frame rate, the Xiaomi Redmi Note 8 2021 also has a larger aperture to capture better images and video in low-light situations, a way bigger sensor providing a way higher image quality and a lot higher 48 mega-pixels resolution back-facing camera.
The Xiaomi Redmi Note 8 2021 counts with a lot bigger memory for applications and games than Galaxy Note 4, and although they both have a SD card slot that holds up to 128 GB, the Xiaomi Redmi Note 8 2021 also has 64 GB internal memory capacity. The Xiaomi Redmi Note 8 2021 counts with improved battery lifetime than Galaxy Note 4, because it has a 4000mAh battery size.
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