Samsung Galaxy J7 (2017) AT&T vs Samsung Galaxy S9 Specs Comparison

Design

Dimensions
5.96 x 3.01 x 0.34 inches 151.5 x 76.4 x 8.6 mm	5.81 x 2.70 x 0.33 inches 147.7 x 68.7 x 8.5 mm
Weight
5.6 oz (159.0 g)	5.75 oz (163.0 g)
Materials
	Back: Glass (Corning Gorilla Glass 5) Frame: Aluminum
Resistance
	Water, Dust; IP68
Biometrics
	Iris scanner, 2D Face unlock, Fingerprint (touch)
Features
	Notification light
Keys
Left: Volume control; Right: Lock/Unlock key	Left: Volume control, Other; Right: Lock/Unlock key
Colors
Black	Midnight black, Coral blue, Titanium gray, Lilac purple, Burgundy red, Sunrise gold, Ice blue

Display

Size
5.5-inch	5.8-inch
Resolution
1280x720px, 267 PPI	2960x1440px, 18.5:9 ratio, 568 PPI
Technology
TFT	Super AMOLED
Screen-to-body
72.05 %	84.36 %
Features
Scratch-resistant glass (Corning Gorilla Glass 4), Ambient light sensor, Proximity sensor	HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip
Samsung Exynos 7 Octa 7870 (14 nm)	Qualcomm Snapdragon 845 SDM845 (10 nm)
Processor
Octa-core 1600 MHz ARM Cortex-A53	Octa-core 2800 MHz Kryo 385
GPU
Mali-T830 MP1	Adreno 630
RAM
2GB (LPDDR3)	4GB (LPDDR4)
Internal storage
16GB	64GB
Storage expansion
microSDXC up to 256 GB	microSDXC up to 400 GB
OS
Android (7.0 Nougat)	Android (10, 9.0 Pie, 8.0 Oreo), Samsung One UI

Battery

Capacity
3300 mAh	3000 mAh
Type
Li - Ion	Li - Ion
Charging
	Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging

Camera

Rear
Single camera	Single camera
Main camera
8 MP (Autofocus, CMOS image sensor)	12 MP (OIS, PDAF) Aperture size: F1.5/F2.4 Sensor size: 1/2.55" Pixel size: 1.4 μm
Flash
LED	LED
Video recording
1920x1080 (Full HD) (60 fps) Video calling, Video sharing	3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps) HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video calling, Video sharing
Front
5 MP	8 MP (Autofocus, HDR), Video capture: 2560x1440 (QHD) (30 fps)

Connectivity & Features

Bluetooth
4.1, Yes	5.0
WLAN
802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,dual-band MIMO, Wi-Fi Direct, Hotspot
USB
microUSB, USB 2.0	Type-C, USB 3.1
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Glonass	GPS, A-GPS, Glonass, Galileo, BeiDou
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers)	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Other
ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync	NFC, ANT+

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Multiple speakers
Features
Album art cover, Background playback	32-Bit DAC, aptX-HD
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM	FM
Additional microphone(s)
	Noise cancellation

Cellular

4G (FDD)
Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
	Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46
3G
Bands 5(850), 4(1700/2100), 2(1900)	Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Data Speed
LTE-A Cat 6 (300/50 Mbit/s)	LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA
SIM type
Nano SIM	Nano SIM
HD Voice
Yes
VoLTE
Yes

Regulatory Approval

FCC approval
Date approved: Mar 17, 2017 FCC ID value: A3LSMJ727A	Date approved: Jan 11, 2018 FCC ID value: A3LSMG960U
Measured SAR
Head: 0.62 W/kg Body: 0.57 W/kg Simultaneous Transmission: 1.25 W/kg Wireless Router: 0.75 W/kg Phablet: 3.97 W/kg	Head: 0.35 W/kg Body: 0.96 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 0.95 W/kg

Buyers information

MSRP
$ 240	$ 720

Availability

Officially announced
	Feb 25, 2018

Alternative variants

International version

System chip	Samsung Exynos 9 9810 (10 nm)
Processor	Octa-core 2900 MHz Exynos M3 and ARM Cortex-A55
GPU	Mali-G72 MP18
FCC approval	Date approved: Dec 27, 2017 FCC ID value: A3LSMG960F
Measured SAR	Head: 0.26 W/kg Body: 1.00 W/kg Simultaneous Transmission: 1.56 W/kg Wireless Router: 1.04 W/kg

with Dual SIM

System chip	Samsung Exynos 9 9810 (10 nm)
Processor	Octa-core 2900 MHz Exynos M3 and ARM Cortex-A55
GPU	Mali-G72 MP18
Dual SIM	Yes

with 256 GB storage

Internal storage	256GB
MSRP	$ 820

with 128 GB storage

Internal storage	128GB
MSRP	$ 770

Links

Full specifications
Samsung Galaxy J7 (2017) AT&T Specs	Samsung Galaxy S9 Specs
PhoneArena Review
Samsung Galaxy J7 (2017) AT&T Review	Samsung Galaxy S9 Review
User Reviews
Samsung Galaxy J7 (2017) AT&T User Reviews	Samsung Galaxy S9 User Reviews