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Samsung Galaxy S21 Ultra vs Samsung Galaxy J7 Duo comparison

 Compare Samsung Galaxy S21 Ultra
Samsung Galaxy S21 Ultra
Compare Samsung Galaxy J7 Duo
Samsung Galaxy J7 Duo
ratings
Overall NDTV RatingRead Review-
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display6.80-inch5.50-inch
ProcessorSamsung Exynos 2100Samsung Exynos 7885
Front Camera40-megapixel 8-megapixel
Rear Camera108-megapixel + 12-megapixel + 10-megapixel + 10-megapixel 13-megapixel + 5-megapixel
RAM12GB, 16GB4GB
Storage128GB, 256GB, 512GB32GB
Battery Capacity5000mAh3000mAh
OSAndroid 11Android Oreo
Resolution1440x3220 pixels720x1280 pixels
general
BrandSamsungSamsung
ModelGalaxy S21 UltraGalaxy J7 Duo
Release dateJanuary 14, 2021March 1, 2018
Form factorTouchscreenTouchscreen
Dimensions (mm)165.10 x 75.60 x 8.90153.50 x 77.20 x 8.20
Weight (g)228.00174.00
IP ratingIP68-
Battery capacity (mAh)50003000
Fast chargingProprietary-
Wireless chargingYes-
ColoursPhantom Titanium, Phantom Navy, Phantom BrownBlack and Gold
Launched in India-Yes
display
Screen size (inches)6.805.50
TouchscreenYesYes
Resolution1440x3220 pixels720x1280 pixels
Protection typeGorilla Glass-
Pixels per inch (PPI)515267
Aspect ratio-16:9
hardware
Processor2.2GHz octa-core (3x2.8GHz + 4x2.2GHz + 1x2.9GHz)octa-core (2x2.2GHz + 6x1.6GHz)
Processor makeSamsung Exynos 2100Samsung Exynos 7885
RAM12GB, 16GB4GB
Internal storage128GB, 256GB, 512GB32GB
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-256
camera
Rear camera108-megapixel (f/1.8, 0.8-micron) + 12-megapixel (f/2.2, 1.4-micron) + 10-megapixel (f/2.4, 1.22-micron) + 10-megapixel (f/4.9, 1.22-micron)13-megapixel (f/1.9) + 5-megapixel (f/1.9)
Rear autofocusLaser autofocusYes
Rear flashYesLED
Front camera40-megapixel (f/2.2, 0.7-micron)8-megapixel (f/1.9)
Front flash-LED
software
Operating systemAndroid 11Android Oreo
SkinOne UI 3.1-
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac/ax802.11 a/b/g/n/ac
GPSYesYes
BluetoothYes, v 5.00Yes, v 5.00
NFCYesNo
USB Type-CYes-
Number of SIMs22
FM-Yes
sim 1
SIM TypeNano-SIM-
GSM/CDMAGSM-
3GYes-
4G/ LTEYes-
5GYes-
sim 2
SIM TypeNano-SIM-
GSM/CDMAGSM-
3GYes-
4G/ LTEYes-
5GYes-
sensors
Face unlockYes-
In-Display Fingerprint SensorYes-
Compass/ MagnetometerYesNo
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYes-
GyroscopeYes-
BarometerYes-
Fingerprint sensor-Yes

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