Xiaomi Redmi S2 vs Redmi Note 5 vs Xiaomi Redmi Note 4X vs Xiaomi Mi 5 comparison
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| key specs |
| Display | 5.99-inch | 5.99-inch | 5.50-inch | 5.15-inch |
| Processor | Qualcomm Snapdragon 625 | Qualcomm Snapdragon 625 | Qualcomm Snapdragon 625 | Qualcomm Snapdragon 820 |
| Front Camera | 16-megapixel | 5-megapixel | 5-megapixel | 4-megapixel |
| Rear Camera | 12-megapixel | 12-megapixel | 13-megapixel | 16-megapixel |
| RAM | 3GB | 4GB | 3GB | 3GB |
| Storage | 32GB | 64GB | 32GB | 32GB |
| Battery Capacity | 3080mAh | 4000mAh | 4100mAh | 3000mAh |
| OS | Android 8.1 Oreo | Android 7.0 | Android 6.0 | Android 6.0 |
| Resolution | 720x1440 pixels | 1080x2160 pixels | 1080x1920 pixels | 1080x1920 pixels |
| general |
| Brand | Xiaomi | Xiaomi | Xiaomi | Xiaomi |
| Model | Redmi S2 | Redmi Note 5 | Redmi Note 4X | Mi 5 |
| Release date | May 1, 2018 | February 1, 2018 | February 1, 2017 | February 1, 2016 |
| Form factor | Touchscreen | Touchscreen | Touchscreen | Touchscreen |
| Dimensions (mm) | 160.73 x 77.26 x 8.10 | 158.50 x 75.45 x 8.05 | 151.00 x 76.00 x 8.45 | 144.50 x 69.20 x 7.25 |
| Weight (g) | 170.00 | 180.00 | 165.00 | 129.00 |
| Battery capacity (mAh) | 3080 | 4000 | 4100 | 3000 |
| Removable battery | No | No | No | No |
| Colours | Black, Rose Gold, Gold, White, Blue, Red, Pink, Gray, Silver | Black, Gold, Lake Blue, Rose Gold | Cherry Powder, Champagne Gold, Platinum Silver Grey, Matte Black, Hatsune Miku Exclusive Colour | Black, White, Gold |
| Launched in India | - | Yes | - | Yes |
| SAR value | - | - | - | 0.33 |
| display |
| Screen size (inches) | 5.99 | 5.99 | 5.50 | 5.15 |
| Touchscreen | Yes | Yes | Yes | Yes |
| Resolution | 720x1440 pixels | 1080x2160 pixels | 1080x1920 pixels | 1080x1920 pixels |
| Aspect ratio | - | 18:9 | - | 16:9 |
| Pixels per inch (PPI) | - | 403 | 403 | 428 |
| Protection type | - | - | - | Gorilla Glass |
| hardware |
| Processor | 2GHz octa-core | 2GHz octa-core | 2GHz octa-core | 1.3GHz quad-core (2x1.8GHz + 2x1.36GHz) |
| Processor make | Qualcomm Snapdragon 625 | Qualcomm Snapdragon 625 | Qualcomm Snapdragon 625 | Qualcomm Snapdragon 820 |
| RAM | 3GB | 4GB | 3GB | 3GB |
| Internal storage | 32GB | 64GB | 32GB | 32GB |
| Expandable storage | Yes | Yes | Yes | No |
| Expandable storage type | microSD | microSD | microSD | - |
| Expandable storage up to (GB) | 256 | - | 128 | - |
| camera |
| Rear camera | 12-megapixel | 12-megapixel (f/2.2, 1.25-micron) | 13-megapixel | 16-megapixel (f/2.0, 1.12-micron) |
| Rear flash | LED | Dual LED | Yes | Dual LED |
| Front camera | 16-megapixel | 5-megapixel | 5-megapixel | 4-megapixel (f/2.0, 2-micron) |
| Front flash | Yes | LED | - | - |
| Rear autofocus | - | Phase detection autofocus | - | Phase detection autofocus |
| software |
| Operating system | Android 8.1 Oreo | Android 7.0 | Android 6.0 | Android 6.0 |
| Skin | MIUI 9 | MIUI 9 | - | MIUI 7 |
| connectivity |
| Wi-Fi | Yes | Yes | Yes | Yes |
| Wi-Fi standards supported | 802.11 b/g/n | 802.11 b/g/n | 802.11 a/b/g/n | 802.11 a/b/g/n/ac |
| GPS | Yes | Yes | Yes | Yes |
| Bluetooth | Yes, v 4.20 | Yes, v 4.20 | Yes, v 4.20 | Yes, v 4.20 |
| Infrared | Yes | No | Yes | Yes |
| Number of SIMs | 2 | 2 | 2 | 2 |
| NFC | - | No | No | Yes |
| USB OTG | - | Yes | Yes | Yes |
| Micro-USB | - | Yes | - | - |
| Headphones | - | 3.5mm | 3.5mm | 3.5mm |
| FM | - | Yes | Yes | No |
| Wi-Fi Direct | - | No | No | Yes |
| Mobile High-Definition Link (MHL) | - | No | No | No |
| USB Type-C | - | - | - | Yes |
| sim 1 |
| SIM Type | Nano-SIM | Nano-SIM | Micro-SIM | Nano-SIM |
| 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 | Nano-SIM |
| GSM/CDMA | GSM | GSM | GSM | GSM |
| 3G | Yes | Yes | Yes | Yes |
| 4G/ LTE | Yes | Yes | Yes | Yes |
| sensors |
| Compass/ Magnetometer | Yes | 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 |
| Fingerprint sensor | - | Yes | - | Yes |
| Barometer | - | No | No | Yes |
| Temperature sensor | - | No | No | No |
| 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 | - | | - | |