Xiaomi Mi Note 3 vs Mi A1 vs Xiaomi Redmi Note 4 vs Xiaomi Redmi Note 4G comparison
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| key specs |
| Display | 5.50-inch | 5.50-inch | 5.50-inch | 5.50-inch |
| Processor | Qualcomm Snapdragon 660 | Qualcomm Snapdragon 625 | Qualcomm Snapdragon 625 | Qualcomm Snapdragon 400 |
| Front Camera | 16-megapixel | 5-megapixel | 5-megapixel | 5-megapixel |
| Rear Camera | 12-megapixel | 12-megapixel | 13-megapixel | 13-megapixel |
| RAM | 6GB | 4GB | 4GB | 2GB |
| Storage | 64GB | 64GB | 64GB | 8GB |
| Battery Capacity | 3500mAh | 3080mAh | 4100mAh | 3100mAh |
| OS | Android | Android 7.1.2 | Android 6.0 | Android 4.4 |
| Resolution | 1080x1920 pixels | 1080x1920 pixels | 1080x1920 pixels | 720x1280 pixels |
| general |
| Brand | Xiaomi | Xiaomi | Xiaomi | Xiaomi |
| Model | Mi Note 3 | Mi A1 | Redmi Note 4 | Redmi Note 4G |
| Release date | September 1, 2017 | September 1, 2017 | August 1, 2016 | August 1, 2014 |
| Form factor | Touchscreen | Touchscreen | Touchscreen | - |
| Dimensions (mm) | 152.60 x 73.95 x 7.60 | 155.40 x 75.80 x 7.30 | 151.00 x 76.00 x 8.30 | 154.00 x 78.70 x 9.45 |
| Weight (g) | 163.00 | 165.00 | 175.00 | 199.00 |
| Battery capacity (mAh) | 3500 | 3080 | 4100 | 3100 |
| Removable battery | No | No | No | Yes |
| Colours | Black, Blue | Rose Gold, Gold, Black | Gold, Grey, Matte Black | White |
| Launched in India | - | Yes | Yes | - |
| display |
| Screen size (inches) | 5.50 | 5.50 | 5.50 | 5.50 |
| Touchscreen | Yes | Yes | Yes | Yes |
| Resolution | 1080x1920 pixels | 1080x1920 pixels | 1080x1920 pixels | 720x1280 pixels |
| Pixels per inch (PPI) | 403 | - | 401 | 267 |
| Aspect ratio | - | 16:9 | 16:9 | - |
| hardware |
| Processor | octa-core | 2GHz octa-core | 2GHz octa-core | 1.6GHz quad-core |
| Processor make | Qualcomm Snapdragon 660 | Qualcomm Snapdragon 625 | Qualcomm Snapdragon 625 | Qualcomm Snapdragon 400 |
| RAM | 6GB | 4GB | 4GB | 2GB |
| Internal storage | 64GB | 64GB | 64GB | 8GB |
| Expandable storage | No | Yes | Yes | Yes |
| Expandable storage type | - | microSD | microSD | microSD |
| Expandable storage up to (GB) | - | 128 | 128 | 64 |
| camera |
| Rear camera | 12-megapixel | 12-megapixel | 13-megapixel (f/2.0, 1.12-micron) | 13-megapixel |
| Rear flash | Dual LED | Dual LED | Dual LED | LED |
| Front camera | 16-megapixel | 5-megapixel | 5-megapixel (f/2.0) | 5-megapixel |
| Rear autofocus | - | - | Phase detection autofocus | - |
| software |
| Operating system | Android | Android 7.1.2 | Android 6.0 | Android 4.4 |
| Skin | MIUI 9 | - | MIUI 8 | MiUI |
| connectivity |
| Wi-Fi | Yes | Yes | Yes | Yes |
| Wi-Fi standards supported | 802.11 a/b/g/n/ac | 802.11 a/b/g/n/ac | 802.11 a/b/g/n | 802.11 b/g/n/ac |
| GPS | Yes | Yes | Yes | Yes |
| Bluetooth | Yes, v 5.00 | Yes, v 4.20 | Yes, v 4.10 | Yes, v 4.00 |
| NFC | No | No | No | No |
| Infrared | Yes | Yes | Yes | No |
| USB OTG | No | Yes | Yes | No |
| FM | No | No | Yes | Yes |
| Number of SIMs | 2 | 2 | 2 | 1 |
| Wi-Fi Direct | No | No | No | Yes |
| Mobile High-Definition Link (MHL) | No | No | No | No |
| USB Type-C | - | Yes | - | - |
| Headphones | - | 3.5mm | 3.5mm | 3.5mm |
| Micro-USB | - | - | Yes | - |
| sim 1 |
| SIM Type | Nano-SIM | Nano-SIM | Micro-SIM | Regular |
| GSM/CDMA | GSM | GSM | GSM | GSM |
| 3G | Yes | Yes | Yes | Yes |
| 4G/ LTE | Yes | Yes | Yes | Yes |
| sim 2 |
| SIM Type | Nano-SIM | Nano-SIM | Nano-SIM | - |
| GSM/CDMA | GSM | GSM | GSM | - |
| 3G | Yes | Yes | Yes | - |
| 4G/ LTE | Yes | Yes | Yes | - |
| sensors |
| Compass/ Magnetometer | No | Yes | Yes | Yes |
| Proximity sensor | Yes | Yes | Yes | Yes |
| Accelerometer | Yes | Yes | Yes | Yes |
| Ambient light sensor | Yes | Yes | Yes | Yes |
| Gyroscope | Yes | Yes | Yes | Yes |
| Barometer | Yes | No | No | No |
| Temperature sensor | No | No | No | No |
| Fingerprint sensor | - | Yes | Yes | - |
| ratings |
| Overall NDTV Rating | - | Read Review | Read Review | Read Review |
| Design Rating | - | | | |
| Display Rating | - | | | |
| Software Rating | - | | | |
| Performance Rating | - | | | |
| Battery Life Rating | - | | | |
| Camera Rating | - | | | |
| Value for Money Rating | - | | | |