Nokia X2 Dual SIM vs Nokia Lumia 638 comparison

Show Only Differences Highlight Differences	Nokia X2 Dual SIM	Nokia Lumia 638
key specs
Display	4.30-inch	4.50-inch
Processor	Qualcomm Snapdragon 200	Qualcomm Snapdragon 400
Front Camera	Unspecified	No
Rear Camera	5-megapixel	5-megapixel
RAM	1GB	1GB
Storage	4GB	8GB
Battery Capacity	1800mAh	1830mAh
OS	Nokia X platform	Windows Phone 8.1
Resolution	480x800 pixels	480x854 pixels
general
Brand	Nokia	Nokia
Model	X2 Dual SIM	Lumia 638
Release date	June 1, 2014	June 1, 2014
Form factor	Touchscreen	Touchscreen
Dimensions (mm)	121.70 x 68.30 x 11.10	129.50 x 66.70 x 9.20
Weight (g)	150.00	-
Battery capacity (mAh)	1800	1830
Removable battery	Yes	No
Colours	Bright Green, Bright Orange, Black, White	Orange, Black, Yellow, White
display
Screen size (inches)	4.30	4.50
Touchscreen	Yes	Yes
Resolution	480x800 pixels	480x854 pixels
Pixels per inch (PPI)	217	-
hardware
Processor	1.2GHz dual-core	1.2GHz quad-core
Processor make	Qualcomm Snapdragon 200	Qualcomm Snapdragon 400
RAM	1GB	1GB
Internal storage	4GB	8GB
Expandable storage	Yes	Yes
Expandable storage type	microSD	-
Expandable storage up to (GB)	32	128
camera
Rear camera	5-megapixel	5-megapixel
Rear flash	LED	No
Front camera	Unspecified	No
software
Operating system	Nokia X platform	Windows Phone 8.1
connectivity
Wi-Fi	Yes	Yes
Wi-Fi standards supported	802.11 b/g/n	802.11 b/g/n
GPS	Yes	Yes
Bluetooth	Yes, v 4.00	Yes
NFC	No	No
Infrared	No	No
USB OTG	No	No
Headphones	3.5mm	3.5mm
FM	Yes	No
Number of SIMs	2	1
Wi-Fi Direct	No	No
Mobile High-Definition Link (MHL)	No	No
sim 1
SIM Type	Regular	-
GSM/CDMA	GSM	GSM
3G	Yes	Yes
4G/ LTE	No	Yes
sim 2
SIM Type	Regular	-
GSM/CDMA	GSM	-
3G	Yes	-
4G/ LTE	No	-
sensors
Compass/ Magnetometer	No	No
Proximity sensor	Yes	No
Accelerometer	Yes	No
Ambient light sensor	Yes	No
Gyroscope	No	No
Barometer	No	No
Temperature sensor	No	No

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