Realme Narzo 100x 5G vs Redmi K40S comparison

Compare Realme Narzo 100x 5G
Compare Redmi K40S
key specs
Display6.80-inch6.67-inch
Front Camera8-megapixel20-megapixel
Rear Camera50-megapixel48-megapixel + 8-megapixel + 2-megapixel
Battery Capacity8000mAh4500mAh
OSAndroid 16Android
Resolution720x1570 pixels1080x2400 pixels
Processor-Qualcomm Snapdragon 870
RAM-6GB, 8GB, 12GB
Storage-128GB, 256GB
general
BrandRealmeXiaomi
ModelNarzo 100x 5GRedmi K40S
Release dateJuly 15, 2026March 17, 2022
AI EnabledYes-
Launched in IndiaYesNo
Dimensions (mm)166.40 x 78.20 x 8.80163.20 x 75.95 x 7.70
Weight (g)224.00195.00
IP ratingIP65-
Battery capacity (mAh)80004500
ColoursMidnight Black, Flash OrangeAurora, Black, Green, Silver,
Form factor-Touchscreen
Removable battery-No
Fast charging-Quick Charge 3.0
display
Refresh Rate144 Hz-
Resolution StandardHD+-
Screen size (inches)6.806.67
TouchscreenYesYes
Resolution720x1570 pixels1080x2400 pixels
Aspect ratio-20:9
camera
Rear camera50-megapixel48-megapixel (f/1.8) + 8-megapixel + 2-megapixel
No. of Rear Cameras23
Front camera8-megapixel20-megapixel
No. of Front Cameras11
Rear autofocus-Yes
Rear flash-Yes
software
Operating systemAndroid 16Android
SkinRealme UI 7.0MIUI 13
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYesYes, v 5.20
USB Type-CYesYes
Number of SIMs22
Active 4G on both SIM cardsYes-
Wi-Fi standards supported-802.11 a/b/g/n/ac/ax
NFC-Yes
Infrared-Yes
sensors
Face unlockYes-
Fingerprint sensorYes-
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
In-Display Fingerprint Sensor-Yes
Gyroscope-Yes
hardware
Processor-octa-core
Processor make-Qualcomm Snapdragon 870
RAM-6GB, 8GB, 12GB
Internal storage-128GB, 256GB
Expandable storage-No
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
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