Redmi A3 vs Microsoft Lumia 640 comparison

Show Only Differences Highlight Differences	Redmi A3	Microsoft Lumia 640
key specs
Display	6.71-inch	5.00-inch
Front Camera	5-megapixel	0.9-megapixel
Rear Camera	8-megapixel	8-megapixel
RAM	3GB, 4GB, 6GB	1GB
Storage	64GB, 128GB	8GB
Battery Capacity	5000mAh	2500mAh
OS	Android 13	Windows Phone 8.1
Resolution	700x1600 pixels	720x1280 pixels
Processor	-	Qualcomm Snapdragon 400
general
Brand	Redmi	Microsoft
Model	A3	Lumia 640
Release date	February 14, 2024	February 1, 2015
Launched in India	Yes	-
Form factor	Touchscreen	Touchscreen
Dimensions (mm)	76.30 x 168.40 x 8.30	141.30 x 72.20 x 8.80
Weight (g)	193.00	145.00
Battery capacity (mAh)	5000	2500
Fast charging	Proprietary	-
Colours	Midnight Black, Lake Blue, Olive Green	-
Removable battery	-	Yes
display
Refresh Rate	90 Hz	-
Resolution Standard	HD+	-
Screen size (inches)	6.71	5.00
Touchscreen	Yes	Yes
Resolution	700x1600 pixels	720x1280 pixels
Pixels per inch (PPI)	-	294
hardware
Processor make	MediaTek Helio G36	Qualcomm Snapdragon 400
RAM	3GB, 4GB, 6GB	1GB
Internal storage	64GB, 128GB	8GB
Processor	-	1.2GHz quad-core
Expandable storage	-	Yes
Expandable storage type	-	microSD
Expandable storage up to (GB)	-	128
camera
Rear camera	8-megapixel	8-megapixel
No. of Rear Cameras	2	-
Front camera	5-megapixel	0.9-megapixel
No. of Front Cameras	1	-
Pop-Up Camera	No	-
Rear flash	-	LED
software
Operating system	Android 13	Windows Phone 8.1
Skin	Go Edition	-
connectivity
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Bluetooth	Yes	Yes
USB Type-C	Yes	-
Active 4G on both SIM cards	Yes	-
Wi-Fi standards supported	-	802.11 b/g/n
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
sensors
Fingerprint sensor	Yes	-
Accelerometer	Yes	Yes
Compass/ Magnetometer	-	Yes
Proximity sensor	-	Yes
Ambient light sensor	-	Yes
Gyroscope	-	No
Barometer	-	No
Temperature sensor	-	No
sim 1
SIM Type	-	Micro-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	No

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