Vivo X6 vs Obi Worldphone SF1 vs Xiaomi Mi 4 comparison

Compare Vivo X6
Compare Obi Worldphone SF1
Compare Xiaomi Mi 4
key specs
Display5.20-inch5.00-inch5.00-inch
ProcessorMediaTek MT6752Qualcomm Snapdragon 615Qualcomm Snapdragon 801
Front Camera8-megapixel5-megapixel8-megapixel
Rear Camera13-megapixel13-megapixel13-megapixel
RAM4GB2GB3GB
Storage32GB16GB16GB
Battery Capacity2400mAh3000mAh3080mAh
OSAndroid 5.1Android 5.0.2Android 4.4
Resolution1080x1920 pixels1080x1920 pixels1080x1920 pixels
general
BrandVivoObi WorldphoneXiaomi
ModelX6SF1Mi 4
Release dateDecember 1, 2015August 1, 2015July 1, 2014
Form factorTouchscreenTouchscreenTouchscreen
Dimensions (mm)147.90 x 73.70 x 6.56146.00 x 74.00 x 8.00139.20 x 68.50 x 8.90
Weight (g)135.50147.00156.00
Battery capacity (mAh)240030003080
Removable batteryNoNoNo
ColoursGold, Rose Gold, SilverBlackWhite
SAR value-0.23-
Launched in India--Yes
display
Screen size (inches)5.205.005.00
TouchscreenYesYesYes
Resolution1080x1920 pixels1080x1920 pixels1080x1920 pixels
Pixels per inch (PPI)-443-
Aspect ratio--16:9
hardware
Processor1.7GHz octa-core1.5GHz octa-core2.5GHz quad-core
Processor makeMediaTek MT6752Qualcomm Snapdragon 615Qualcomm Snapdragon 801
RAM4GB2GB3GB
Internal storage32GB16GB16GB
Expandable storageYesYesNo
Expandable storage typemicroSDmicroSD-
Expandable storage up to (GB)12864-
camera
Rear camera13-megapixel13-megapixel13-megapixel (f/1.8, 1.12-micron)
Rear flashLEDLEDLED
Front camera8-megapixel5-megapixel8-megapixel (f/1.8)
Front flash-LED-
Rear autofocus--Yes
software
Operating systemAndroid 5.1Android 5.0.2Android 4.4
SkinFuntouch OSObi LifespeedMIUI 6
connectivity
Wi-FiYesYesYes
GPSYesYesYes
BluetoothYes, v 4.00Yes, v 4.00Yes, v 4.00
NFCNoNoNo
InfraredNoNoYes
USB OTGYesYesYes
Headphones3.5mm3.5mm3.5mm
FMYesYesYes
Number of SIMs221
Wi-Fi DirectNoYesNo
Mobile High-Definition Link (MHL)NoNoNo
Wi-Fi standards supported-802.11 a/b/g/n802.11 a/b/g/n/ac
Micro-USB--Yes
sim 1
SIM TypeRegularMicro-SIMMicro-SIM
GSM/CDMAGSMGSMGSM
3GYesYesYes
4G/ LTEYesYesNo
sim 2
SIM TypeRegularNano-SIM-
GSM/CDMAGSMGSM-
3GYesYes-
4G/ LTEYesNo-
sensors
Compass/ MagnetometerNoYesYes
Proximity sensorYesYesYes
AccelerometerYesYesYes
Ambient light sensorYesYesYes
GyroscopeYesYesYes
BarometerNoNoYes
Temperature sensorNoNoNo
ratings
Overall NDTV Rating-Read ReviewRead Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-

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