Xiaomi Redmi 4 comes with a 5-inch HD 2.5D curved display with the resolution of 720×1280 pixels. On the inside, the Redmi 4 comes equipped with Qualcomm Snapdragon 435 Chipset with the clock speed of 1.4GHz, along with Adreno 505 GPU. It has 2GB/3GB/4GB of RAM and 16GB/32GB/64GB of internal storage, which is further expandable up to 128GB via microSD. The smartphone runs on Android 6.0.1 Marshmallow operating system which is wrapped under MiUi 8 and comes packed with good 4100 mAh non-removable battery. The device also comes with a fingerprint scanner for enhanced security. For the camera, Xiaomi Redmi 4 sports a 13-megapixel rear camera with LED flash, PDAF, f/2.0 and on its front, it has a 5-megapixel front camera with f/2.2 for selfies and video chats. Further, the device offers Hybrid Dual SIM (1 Micro+1 Nano) 4G, GPS/AGPS/GLONASS, Bluetooth 4.1, WiFi and a MicroUSB port.
| Type | HD IPS, 2.5D curved glass display |
| Resolution | 720 x 1280 pixels |
| Pixel Density | 294 ppi |
| Screen Size | 5 inches |
| Processor | Octa Core 1.4 GHz, Qualcomm Snapdragon 435 with Adreno 505 GPU |
| Operating System | Android 6.0.1, with special preview of Android N which is wrapped under MiUi 8 |
| RAM | 3 GB |
| Internal Memory | 32 GB |
| Expandable | 256 GB, micro SD card |
| Rear Camera | 13 MP, f/2.0 aperture, PDAF, Auto-focus, Geo-tagging, touch focus, face/smile detection, HDR, panorama |
| Front Camera | 5 MP, f/2.2 aperture, |
| Image Stablizer | No |
| Flash | Yes, LED |
| Video Recording | Yes, 1080p |
| Design | Bar |
| Size | 139.3 x 69.9 x 8.65 mm |
| Weight | 150 grams |
| Capacity | 4100 mAh, Li-ion |
| Type | Non Removable |
| Radio | Yes |
| Media Player | Yes, MP3, WAV, eAAC+, FLAC |
| Video Player | Yes, MP4, 3GPP, 3GP, DivX, Xvid, H.265 |
| Network | 2G, wi |
| GSM/CDMA | GSM |
| Bluetooth | 4.1, A2DP, LE |
| WiFi | Yes, Wi-Fi 802.11 b/g/n, hotspot, Wi-Fi Direct |
| Internet | EDGE |
| GPS | With A-GPS |
| USB | Micro, 2.0 |
| HDMI | No |
| Headphone Connector | 3.5 mm |
| SIM | Dual |
| NFC | No |
| DLNA | No |
| Sensors | |
| Built in Applications | Yes, Google Apps, Notes, Calendar, Music Player, MIUI Apps, Theme Store |
| Warrenty | 1 Year |
| Dustproof | No |
| Shockproof | No |
| Water Resistant | No |
| Keypad | Touchscreen, Capacitive Multipoint-Touch |
| Water Proof | No |