Redmi K40 Ultra vs Xiaomi Redmi S2 comparison

Show Only Differences Highlight Differences	Redmi K40 Ultra	Xiaomi Redmi S2
key specs
Rear Camera	108-megapixel	12-megapixel
Display	-	5.99-inch
Processor	-	Qualcomm Snapdragon 625
Front Camera	-	16-megapixel
RAM	-	3GB
Storage	-	32GB
Battery Capacity	-	3080mAh
OS	-	Android 8.1 Oreo
Resolution	-	720x1440 pixels
display
Touchscreen	Yes	Yes
Aspect ratio	20:9	-
Screen size (inches)	-	5.99
Resolution	-	720x1440 pixels
hardware
Processor make	MediaTek	Qualcomm Snapdragon 625
Processor	-	2GHz octa-core
RAM	-	3GB
Internal storage	-	32GB
Expandable storage	-	Yes
Expandable storage type	-	microSD
Expandable storage up to (GB)	-	256
camera
Rear camera	108-megapixel	12-megapixel
No. of Rear Cameras	3	-
Rear flash	-	LED
Front camera	-	16-megapixel
Front flash	-	Yes
general
Brand	-	Xiaomi
Model	-	Redmi S2
Release date	-	May 1, 2018
Form factor	-	Touchscreen
Dimensions (mm)	-	160.73 x 77.26 x 8.10
Weight (g)	-	170.00
Battery capacity (mAh)	-	3080
Removable battery	-	No
Colours	-	Black, Rose Gold, Gold, White, Blue, Red, Pink, Gray, Silver
software
Operating system	-	Android 8.1 Oreo
Skin	-	MIUI 9
connectivity
Wi-Fi	-	Yes
Wi-Fi standards supported	-	802.11 b/g/n
GPS	-	Yes
Bluetooth	-	Yes, v 4.20
Infrared	-	Yes
Number of SIMs	-	2
sim 1
SIM Type	-	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
sim 2
SIM Type	-	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
sensors
Compass/ Magnetometer	-	Yes
Proximity sensor	-	Yes
Accelerometer	-	Yes
Ambient light sensor	-	Yes
Gyroscope	-	Yes

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