Itel S21 vs Asus ZenFone 4 Selfie comparison

Show Only Differences Highlight Differences	Itel S21	Asus ZenFone 4 Selfie
key specs
Display	5.00-inch	5.50-inch
Processor	1.1GHz quad-core	Qualcomm Snapdragon 625
Front Camera	5-megapixel	12-megapixel
Rear Camera	8-megapixel	16-megapixel
RAM	1GB	4GB
Storage	16GB	32GB
Battery Capacity	2700mAh	-
OS	Android 7.0	Android 7.1.1
Resolution	480x854 pixels	1080x1920 pixels
general
Brand	Itel	Asus
Model	S21	ZenFone 4 Selfie
Release date	November 1, 2017	-
Form factor	Touchscreen	Touchscreen
Battery capacity (mAh)	2700	-
Removable battery	Yes	No
Colours	Moonlight Silver, Champagne Gold, Elegant Black	-
display
Screen size (inches)	5.00	5.50
Touchscreen	Yes	Yes
Resolution	480x854 pixels	1080x1920 pixels
hardware
Processor	1.1GHz quad-core	quad-core
RAM	1GB	4GB
Internal storage	16GB	32GB
Expandable storage	Yes	No
Expandable storage type	microSD	-
Expandable storage up to (GB)	32	-
Processor make	-	Qualcomm Snapdragon 625
camera
Rear camera	8-megapixel	16-megapixel
Rear flash	Yes	-
Front camera	5-megapixel	12-megapixel
software
Operating system	Android 7.0	Android 7.1.1
connectivity
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Bluetooth	Yes	Yes
NFC	No	No
Infrared	No	No
USB OTG	Yes	No
Headphones	3.5mm	Yes
FM	Yes	No
Number of SIMs	2	1
Wi-Fi Direct	No	No
Mobile High-Definition Link (MHL)	No	No
Wi-Fi standards supported	-	802.11 b/g/n
sim 1
SIM Type	Nano-SIM	-
GSM/CDMA	GSM	GSM
3G	Yes	Yes
4G/ LTE	Yes	Yes
sim 2
SIM Type	Nano-SIM	-
GSM/CDMA	GSM	-
3G	Yes	-
4G/ LTE	Yes	-
sensors
Compass/ Magnetometer	Yes	No
Proximity sensor	Yes	Yes
Accelerometer	No	Yes
Ambient light sensor	Yes	Yes
Gyroscope	No	No
Barometer	No	No
Temperature sensor	No	No

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