Xiaomi Redmi Y1 comes with a 5.5-inch HD IPS display with the resolution of 720×1280 pixels. On the inside, the Redmi Y1 comes equipped with Qualcomm Snapdragon 435 Chipset with the clock speed of 1.4GHz, along with Adreno 505 GPU. It has 3GB/4GB of RAM and 32GB/64GB of internal storage, which is further expandable up to 128GB via microSD. The smartphone runs on Android 7.1.1 Nougat operating system which is wrapped under MiUi 8 and comes packed with good 3080 mAh non-removable battery. The device also comes with a fingerprint scanner for enhanced security. For the camera, Xiaomi Redmi Y1 sports a 13-megapixel rear camera with LED flash, PDAF, f/2.0 and on its front, it has a 16-megapixel front camera with f/2.0 for selfies and video chats. Further, the device offers Dual SIM, a dedicated micro SD card slot, 4G VoLTE, GPS/AGPS/GLONASS, Bluetooth 4.1, WiFi and a MicroUSB port.
| Type | HD IPS, 2.5D curved glass display | 
| Resolution | 720 x 1280 pixels | 
| Screen Size | 5.5 inches | 
| Processor | Octa Core 1.4 GHz, Qualcomm Snapdragon 435 with Adreno 505 GPU | 
| Operating System | Android 7.1.1, Nougat with MIUI 8, upgradable to MIUI 9 | 
| RAM | 4 GB | 
| Internal Memory | 64 GB | 
| Expandable | 128 GB, micro SD card | 
| Rear Camera | 13 MP, ƒ/2.2 aperture, PDAF technology, Low light enhancement, HDR Panorama, Burst mode, Face recognition, Real-time filters | 
| Front Camera | 16 MP, Beautify, 36 smart beauty profiles, Video call with real-time beautify, ƒ/2.0 large aperture, 76.4-degree wide-angle lens, Selfie countdown, Face recognition | 
| Image Stablizer | No | 
| Flash | Yes, LED | 
| Video Recording | Yes, 1080p, 30fps | 
| Design | Bar | 
| Weight | 153 grams | 
| Capacity | 3080 mAh, Li-ion | 
| Type | Non Removable | 
| Talktime | 32 hrs | 
| Standby Time | 240 hrs | 
| Radio | Yes | 
| Media Player | Yes, MP3, WAV, eAAC+, FLAC | 
| Video Player | Yes, MP4, 3GPP, 3GP, DivX, Xvid, H.265 | 
| Network | 2G, GSM B2/3/5/8; WCDMA B1/2/5/8; FDD-LTE B1/3/4/5/7/8/20; TDD-LTE B38/40 | 
| GSM/CDMA | GSM | 
| Bluetooth | 4.2, 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 |