Redmi K90 Max vs Redmi K40S comparison

Show Only Differences Highlight Differences	Redmi K90 Max	Redmi K40S
key specs
Display	6.83-inch	6.67-inch
Front Camera	20-megapixel	20-megapixel
Rear Camera	50-megapixel + 8-megapixel	48-megapixel + 8-megapixel + 2-megapixel
RAM	12GB	6GB, 8GB, 12GB
Storage	256GB	128GB, 256GB
Battery Capacity	8550mAh	4500mAh
OS	Android	Android
Processor	-	Qualcomm Snapdragon 870
Resolution	-	1080x2400 pixels
general
Brand	Xiaomi	Xiaomi
Model	Redmi K90 Max	Redmi K40S
Release date	April 21, 2026	March 17, 2022
Launched in India	No	No
Dimensions (mm)	162.91 x 77.00 x 8.18	163.20 x 75.95 x 7.70
Weight (g)	227.00	195.00
Battery capacity (mAh)	8550	4500
Fast charging	100W Fast Charging	Quick Charge 3.0
Colours	Space Silver, Shadow Black and Sky Blue	Aurora, Black, Green, Silver,
Form factor	-	Touchscreen
Removable battery	-	No
display
Refresh Rate	165 Hz	-
Resolution Standard	1.5K	-
Screen size (inches)	6.83	6.67
Touchscreen	-	Yes
Resolution	-	1080x2400 pixels
Aspect ratio	-	20:9
hardware
Processor make	MediaTek Dimensity 9500	Qualcomm Snapdragon 870
RAM	12GB	6GB, 8GB, 12GB
Internal storage	256GB	128GB, 256GB
Processor	-	octa-core
Expandable storage	-	No
camera
Rear camera	50-megapixel + 8-megapixel	48-megapixel (f/1.8) + 8-megapixel + 2-megapixel
No. of Rear Cameras	2	3
Front camera	20-megapixel	20-megapixel
No. of Front Cameras	1	1
Rear autofocus	-	Yes
Rear flash	-	Yes
software
Operating system	Android	Android
Skin	HyperOS 3	MIUI 13
connectivity
Wi-Fi	-	Yes
Wi-Fi standards supported	-	802.11 a/b/g/n/ac/ax
GPS	-	Yes
Bluetooth	-	Yes, v 5.20
NFC	-	Yes
Infrared	-	Yes
USB Type-C	-	Yes
Number of SIMs	-	2
sim 1
SIM Type	-	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
5G	-	Yes
sim 2
SIM Type	-	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
5G	-	Yes
sensors
In-Display Fingerprint Sensor	-	Yes
Compass/ Magnetometer	-	Yes
Proximity sensor	-	Yes
Accelerometer	-	Yes
Ambient light sensor	-	Yes
Gyroscope	-	Yes

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