Redmi A1 vs Microsoft Lumia 640 comparison

Show Only Differences Highlight Differences	Redmi A1	Microsoft Lumia 640
key specs
Display	6.52-inch	5.00-inch
Rear Camera	Unspecified	8-megapixel
RAM	3GB	1GB
Battery Capacity	5000mAh	2500mAh
OS	Android 12	Windows Phone 8.1
Processor	-	Qualcomm Snapdragon 400
Front Camera	-	0.9-megapixel
Storage	-	8GB
Resolution	-	720x1280 pixels
general
Brand	Redmi	Microsoft
Model	A1	Lumia 640
Release date	September 6, 2022	February 1, 2015
Launched in India	Yes	-
Form factor	Touchscreen	Touchscreen
Body type	Plastic	-
Battery capacity (mAh)	5000	2500
Removable battery	No	Yes
Dimensions (mm)	-	141.30 x 72.20 x 8.80
Weight (g)	-	145.00
display
Resolution Standard	HD+	-
Screen size (inches)	6.52	5.00
Touchscreen	Yes	Yes
Resolution	-	720x1280 pixels
Pixels per inch (PPI)	-	294
hardware
Processor make	MediaTek Helio A22 (MT6761)	Qualcomm Snapdragon 400
RAM	3GB	1GB
Processor	-	1.2GHz quad-core
Internal storage	-	8GB
Expandable storage	-	Yes
Expandable storage type	-	microSD
Expandable storage up to (GB)	-	128
camera
Rear camera	Unspecified	8-megapixel
No. of Rear Cameras	2	-
Rear flash	Yes	LED
Front camera	-	0.9-megapixel
software
Operating system	Android 12	Windows Phone 8.1
connectivity
Wi-Fi	Yes	Yes
Wi-Fi standards supported	-	802.11 b/g/n
GPS	-	Yes
Bluetooth	-	Yes
NFC	-	No
Infrared	-	No
USB OTG	-	No
Headphones	-	3.5mm
FM	-	No
Number of SIMs	-	1
Wi-Fi Direct	-	No
Mobile High-Definition Link (MHL)	-	No
sim 1
SIM Type	-	Micro-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	No
sensors
Compass/ Magnetometer	-	Yes
Proximity sensor	-	Yes
Accelerometer	-	Yes
Ambient light sensor	-	Yes
Gyroscope	-	No
Barometer	-	No
Temperature sensor	-	No

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