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LG Q7 vs LG K30 vs Samsung Galaxy J3 (2017) (AT&T) comparison

 Compare LG Q7
LG Q7
Compare LG K30
LG K30
Compare Samsung Galaxy J3 (2017) (AT&T)
Samsung Galaxy J3 (2017) (AT&T)
key specs
Display5.50-inch5.30-inch5.00-inch
Processor1.5GHz octa-coreQualcomm Snapdragon 425Samsung Exynos 7570
Front Camera8-megapixel5-megapixel2-megapixel
Rear Camera13-megapixel13-megapixel5-megapixel
RAM3GB2GB1.5GB
Storage32GB32GB16GB
Battery Capacity3000mAh2880mAh2600mAh
OSAndroid 8.1Android 7.1Android 7.0
Resolution1080x2160 pixels720x1280 pixels720x1280 pixels
general
BrandLGLGSamsung
ModelQ7K30Galaxy J3 (2017) (AT&T)
Release dateMay 1, 2018May 1, 2018May 1, 2017
Launched in IndiaYes--
Form factorTouchscreenTouchscreenTouchscreen
Dimensions (mm)143.80 x 69.30 x 8.40148.60 x 74.90 x 8.60140.97 x 70.10 x 8.64
Weight (g)145.00168.00148.00
IP ratingIP68--
Battery capacity (mAh)300028802600
ColoursAurora Black, Moroccan Blue, Lavender Violet--
Removable battery--No
display
Screen size (inches)5.505.305.00
TouchscreenYesYesYes
Resolution1080x2160 pixels720x1280 pixels720x1280 pixels
Aspect ratio18:9--
Pixels per inch (PPI)442--
hardware
Processor1.5GHz octa-core1.4GHz quad-core1.4GHz quad-core
RAM3GB2GB1.5GB
Internal storage32GB32GB16GB
Expandable storageYesYesYes
Expandable storage typemicroSDmicroSDmicroSD
Expandable storage up to (GB)200032256
Processor make-Qualcomm Snapdragon 425Samsung Exynos 7570
camera
Rear camera13-megapixel13-megapixel5-megapixel
Rear autofocusPhase detection autofocus--
Rear flashLEDLEDLED
Front camera8-megapixel5-megapixel2-megapixel
software
Operating systemAndroid 8.1Android 7.1Android 7.0
connectivity
Wi-FiYesYesYes
Wi-Fi standards supported802.11 b/g/n802.11 b/g/n802.11 b/g/n
GPSYes-Yes
BluetoothYes, v 4.20Yes, v 4.20Yes, v 4.20
NFCYes-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
Face unlockYes--
Fingerprint sensorYes--
Proximity sensorYesYesYes
AccelerometerYesYesYes
Ambient light sensorYes-No
Compass/ Magnetometer--No
Gyroscope--Yes
Barometer--No
Temperature sensor--No
sim 1
SIM Type--Nano-SIM
GSM/CDMA--GSM
3G--Yes
4G/ LTE--Yes

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