Oppo A15 vs Nokia Lumia 638 comparison

Show Only Differences Highlight Differences	Oppo A15	Nokia Lumia 638
key specs
Display	6.52-inch	4.50-inch
Processor	MediaTek Helio P35	Qualcomm Snapdragon 400
Front Camera	5-megapixel	No
Rear Camera	13-megapixel + 2-megapixel + 2-megapixel	5-megapixel
RAM	3GB	1GB
Storage	32GB	8GB
Battery Capacity	4230mAh	1830mAh
OS	Android 10	Windows Phone 8.1
Resolution	720x1600 pixels	480x854 pixels
general
Brand	Oppo	Nokia
Model	A15	Lumia 638
Release date	October 15, 2020	June 1, 2014
Launched in India	Yes	-
Form factor	Touchscreen	Touchscreen
Dimensions (mm)	164.00 x 75.00 x 8.00	129.50 x 66.70 x 9.20
Weight (g)	175.00	-
Battery capacity (mAh)	4230	1830
Colours	Dynamic Black, Mystery Blue	Orange, Black, Yellow, White
Removable battery	-	No
display
Screen size (inches)	6.52	4.50
Resolution	720x1600 pixels	480x854 pixels
Aspect ratio	20:9	-
Touchscreen	-	Yes
hardware
Processor	octa-core	1.2GHz quad-core
Processor make	MediaTek Helio P35 (MT6765)	Qualcomm Snapdragon 400
RAM	3GB	1GB
Internal storage	32GB	8GB
Expandable storage	Yes	Yes
Expandable storage type	microSD	-
Expandable storage up to (GB)	256	128
camera
Rear camera	13-megapixel + 2-megapixel + 2-megapixel	5-megapixel
Front camera	5-megapixel	No
Rear flash	-	No
software
Operating system	Android 10	Windows Phone 8.1
Skin	ColorOS 7.2	-
connectivity
Wi-Fi	Yes	Yes
Wi-Fi standards supported	802.11 a/b/g/n/ac	802.11 b/g/n
GPS	Yes	Yes
Bluetooth	Yes, v 5.00	Yes
Micro-USB	Yes	-
Headphones	3.5mm	3.5mm
Number of SIMs	2	1
NFC	-	No
Infrared	-	No
USB OTG	-	No
FM	-	No
Wi-Fi Direct	-	No
Mobile High-Definition Link (MHL)	-	No
sim 1
SIM Type	Nano-SIM	-
GSM/CDMA	GSM	GSM
3G	Yes	Yes
4G/ LTE	Yes	Yes
sim 2
SIM Type	Nano-SIM	-
GSM/CDMA	GSM	-
3G	Yes	-
4G/ LTE	Yes	-
sensors
Face unlock	Yes	-
Fingerprint sensor	Yes	-
Proximity sensor	Yes	No
Accelerometer	Yes	No
Ambient light sensor	Yes	No
Compass/ Magnetometer	-	No
Gyroscope	-	No
Barometer	-	No
Temperature sensor	-	No

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