Redmi 6 vs Xiaomi Redmi 4 comparison
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| ratings |
| Overall NDTV Rating | Read Review | Read Review |
| Design Rating | | |
| Display Rating | | |
| Software Rating | | |
| Performance Rating | | |
| Battery Life Rating | | |
| Camera Rating | | |
| Value for Money Rating | | |
| key specs |
| Display | 5.45-inch | 5.00-inch |
| Processor | MediaTek Helio P22 | Qualcomm Snapdragon 435 |
| Front Camera | 5-megapixel | 5-megapixel |
| Rear Camera | 12-megapixel + 5-megapixel | 13-megapixel |
| RAM | 3GB | 3GB |
| Storage | 32GB | 32GB |
| Battery Capacity | 3000mAh | 4100mAh |
| OS | Android 8.1 Oreo | Android 6.0.1 |
| Resolution | 720x1440 pixels | 720x1280 pixels |
| general |
| Brand | Xiaomi | Xiaomi |
| Model | Redmi 6 | Redmi 4 |
| Release date | June 1, 2018 | November 1, 2016 |
| Launched in India | Yes | Yes |
| Form factor | Touchscreen | Touchscreen |
| Body type | Plastic | - |
| Dimensions (mm) | 147.50 x 71.50 x 8.30 | 139.30 x 69.90 x 8.65 |
| Weight (g) | 146.00 | 150.00 |
| Battery capacity (mAh) | 3000 | 4100 |
| Removable battery | No | No |
| Wireless charging | No | - |
| Colours | Lake Blue, Gold, Rose Gold, Black | Gold, Black |
| display |
| Screen size (inches) | 5.45 | 5.00 |
| Touchscreen | Yes | Yes |
| Resolution | 720x1440 pixels | 720x1280 pixels |
| Aspect ratio | 18:9 | 16:9 |
| Pixels per inch (PPI) | 295 | 296 |
| Protection type | - | Gorilla Glass |
| hardware |
| Processor | 2GHz octa-core (8x2GHz) | 1.4GHz octa-core |
| Processor make | MediaTek Helio P22 (MT6762) | Qualcomm Snapdragon 435 |
| RAM | 3GB | 3GB |
| Internal storage | 32GB | 32GB |
| Expandable storage | Yes | Yes |
| Expandable storage type | microSD | microSD |
| Expandable storage up to (GB) | 256 | 128 |
| Dedicated microSD slot | Yes | - |
| camera |
| Rear camera | 12-megapixel (f/2.2, 1.25-micron) + 5-megapixel | 13-megapixel |
| Rear autofocus | Phase detection autofocus | - |
| Rear flash | LED | LED |
| Front camera | 5-megapixel (f/2.2, 1.12-micron) | 5-megapixel |
| Front flash | No | - |
| software |
| Operating system | Android 8.1 Oreo | Android 6.0.1 |
| Skin | MIUI 9.6 | MIUI 8 |
| connectivity |
| Wi-Fi | Yes | Yes |
| Wi-Fi standards supported | 802.11 b/g/n | 802.11 b/g/n |
| GPS | Yes | Yes |
| Bluetooth | Yes, v 4.20 | Yes, v 4.10 |
| NFC | No | No |
| Infrared | No | Yes |
| USB OTG | Yes | Yes |
| USB Type-C | No | - |
| Micro-USB | Yes | Yes |
| Headphones | 3.5mm | 3.5mm |
| FM | Yes | Yes |
| Number of SIMs | 2 | 2 |
| Active 4G on both SIM cards | Yes | - |
| Wi-Fi Direct | - | No |
| Mobile High-Definition Link (MHL) | - | No |
| sim 1 |
| SIM Type | Nano-SIM | Micro-SIM |
| GSM/CDMA | GSM | GSM |
| 3G | Yes | Yes |
| 4G/ LTE | Yes | Yes |
| sim 2 |
| SIM Type | Nano-SIM | Nano-SIM |
| GSM/CDMA | GSM | GSM |
| 3G | Yes | Yes |
| 4G/ LTE | Yes | Yes |
| sensors |
| Face unlock | Yes | - |
| 3D face recognition | No | - |
| Fingerprint sensor | Yes | Yes |
| Compass/ Magnetometer | Yes | Yes |
| Proximity sensor | Yes | Yes |
| Accelerometer | Yes | Yes |
| Ambient light sensor | Yes | Yes |
| Gyroscope | No | Yes |
| Barometer | - | No |
| Temperature sensor | - | No |