key specs |
Display | 5.00-inch | 5.00-inch |
Processor | 1.2GHz quad-core | Qualcomm Snapdragon 615 |
Front Camera | 5-megapixel | 5-megapixel |
Rear Camera | 8-megapixel | 13-megapixel |
RAM | 2GB | 2GB |
Storage | 16GB | 16GB |
Battery Capacity | 2350mAh | 3120mAh |
OS | Android 5.0.2 | Android 5.0.2 |
Resolution | 540x960 pixels | 1080x1920 pixels |
general |
Brand | Vivo | Xiaomi |
Model | Y51 | Mi 4i |
Release date | November 1, 2015 | April 1, 2015 |
Form factor | Touchscreen | Touchscreen |
Dimensions (mm) | 143.80 x 71.70 x 7.52 | 138.10 x 69.60 x 7.80 |
Weight (g) | 157.00 | 130.00 |
Battery capacity (mAh) | 2350 | 3120 |
Removable battery | No | No |
Colours | White | Black, White, Orange, Light Blue, and Pink |
display |
Screen size (inches) | 5.00 | 5.00 |
Touchscreen | Yes | Yes |
Resolution | 540x960 pixels | 1080x1920 pixels |
Pixels per inch (PPI) | - | 441 |
hardware |
Processor | 1.2GHz quad-core | 1.7GHz octa-core |
RAM | 2GB | 2GB |
Internal storage | 16GB | 16GB |
Expandable storage | Yes | No |
Expandable storage type | microSD | - |
Expandable storage up to (GB) | 128 | - |
Processor make | - | Qualcomm Snapdragon 615 |
camera |
Rear camera | 8-megapixel | 13-megapixel |
Rear flash | LED | Dual LED |
Front camera | 5-megapixel | 5-megapixel |
software |
Operating system | Android 5.0.2 | Android 5.0.2 |
Skin | FunTouch OS | MIUI 6 |
connectivity |
Wi-Fi | Yes | Yes |
GPS | Yes | Yes |
Bluetooth | Yes | Yes, v 4.10 |
NFC | No | No |
Infrared | No | No |
USB OTG | No | Yes |
Headphones | 3.5mm | 3.5mm |
FM | Yes | Yes |
Number of SIMs | 2 | 2 |
Wi-Fi Direct | No | Yes |
Mobile High-Definition Link (MHL) | No | No |
Wi-Fi standards supported | - | 802.11 b/g/n/ac |
sim 1 |
SIM Type | Micro-SIM | Micro-SIM |
GSM/CDMA | GSM | GSM |
3G | Yes | Yes |
4G/ LTE | Yes | Yes |
sim 2 |
SIM Type | Micro-SIM | Micro-SIM |
GSM/CDMA | GSM | GSM |
3G | No | Yes |
4G/ LTE | Yes | Yes |
sensors |
Compass/ Magnetometer | No | Yes |
Proximity sensor | Yes | Yes |
Accelerometer | Yes | Yes |
Ambient light sensor | Yes | Yes |
Gyroscope | Yes | Yes |
Barometer | No | No |
Temperature sensor | No | No |
ratings |
Overall NDTV Rating | - | Read Review |
Design Rating | - | |
Display Rating | - | |
Software Rating | - | |
Performance Rating | - | |
Battery Life Rating | - | |
Camera Rating | - | |
Value for Money Rating | - | |