Samsung Galaxy J7 Star vs OnePlus 7T

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Display

Size

5.5 inches
6.5 inches

Resolution

1280 x 720 pixels, 16:9 ratio,
267 PPI
2400 x 1080 pixels, 20:9 ratio,
402 PPI

Technology

TFT
Super AMOLED

Screen-to-body

71.45 %
86.43 %

Features

Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
90Hz refresh rate, HDR video support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip

Samsung Exynos 7 Octa 7870
Qualcomm Snapdragon 855+ SM8150-AC

Processor

Octa-core, 1600 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2960 MHz, Kryo 485, 64-bit, 7 nm

GPU

Mali-T830 MP1
Adreno 640

RAM

2GB LPDDR3
8GB LPDDR4

Internal storage

32GB
128GB (UFS 3.0), not expandable

Storage expansion

microSDXC up to 400 GB
 

OS

Android (9.0 Pie, 8.0 Oreo), Samsung One UI
Android (10), OxygenOS UI

Battery

Capacity

3300 mAh
3800 mAh

Type

Li - Polymer, Not user replaceable
Not user replaceable

Battery life test results

 

Charging

 
OnePlus Warp Charge

Max charge speed

 
Wired: 30.0W

Camera

Rear

Single camera
Triple camera

Main camera

13 MP (PDAF)
48 MP (OIS, PDAF)

Specifications

Aperture size: F1.7; Focal length: 28 mm; Sensor size: 1/3.06"; Pixel size: 1.12 μm
Aperture size: F1.6; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera

 
12 MP (Telephoto, PDAF)

Specifications

 
Optical zoom: 2x; Aperture size: F2.2; Focal Length: 51 mm; Pixel size: 1 μm

Third camera

 
16 MP (Ultra-wide, Autofocus)

Specifications

 
Aperture size: F2.2; Focal Length: 17 mm

Video recording

1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features

 
HDR, Time-lapse video, EIS

Front

13 MP
16 MP (EIS, HDR)

Design

Dimensions

6.03 x 3 x 0.34 inches (153.2 x 76.2 x 8.6 mm)
6.34 x 2.93 x 0.32 inches (160.94 x 74.44 x 8.13 mm)

Weight

6.38 oz (181.0 g)
the average is 6.2 oz (176 g)
6.70 oz (190.0 g)
the average is 6.2 oz (176 g)

Materials

 
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum

Biometrics

2D Face unlock
2D Face unlock, In-screen fingerprint

Features

Touch sensitive control keys
 

Colors

Blue
Glacier blue, Frosted silver

Cellular

LTE (FDD)

Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 66(AWS-3), 71(600)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 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)

LTE (TDD)

 
Bands 34(2000), 38(2600), 39(1900+), 41(2600+), 46, 48(3600)

UMTS

850, 1700/2100, 1900, 2100 MHz
800, 850, 900, 1700/2100, 1800, 1900, 2100 MHz

Data Speed

LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

Dual SIM

 
Yes

SIM type

Nano SIM
Nano SIM

HD Voice

Yes
 

Multimedia

Headphones

3.5mm jack
No 3.5mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Multiple speakers

Features

 
Dolby Atmos, aptX-HD

Screen mirroring

Wireless screen share
Wireless screen share

Additional microphone(s)

 
for Noise cancellation

Connectivity & Features

Bluetooth

4.2
5.0

Wi-Fi

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 (reversible), USB 3.1

Features

Charging
Charging, Headphones port

Location

GPS, A-GPS, Glonass, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Dual-band positioning, Cell ID, Wi-Fi positioning

Sensors

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Hall (for flip covers)

Other

NFC, ANT+, UMA (Wi-Fi Calling)
NFC

Regulatory Approval

FCC approval

 
 

Date approved

May 10, 2018
 

FCC ID value: A3LSMJ737T link
 

Measured SAR

 
 

Head

1.36 W/kg
 

Body

1.01 W/kg
 

Simultaneous Transmission

1.58 W/kg
 

Wireless Router

1.11 W/kg
 

Phablet

3.60 W/kg
 

Buyers information

In The Box

USB cable, Wall charging adapter, Start guide, Terms & Conditions
Warp Charge 30 power adapter, Warp Type-C cable, Quick Start guide, Welcome letter, Safety information and Warranty card, LOGO sticker, Case, Screen protector (pre-applied), SIM Tray ejector

Price

 
$ 599
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