Samsung Galaxy J7 Star vs T-Mobile Revvl 2 Plus

Display

Display size

5.5 inches
6.0 inches

Resolution

720 x 1280 pixels
1080 x 2160 pixels

Pixel density

267 ppi
402 ppi

Technology

TFT
IPS LCD

Screen-to-body ratio

71.45 %
76.51 %

Features

Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor

Camera

Rear

Single camera
Dual camera

Main camera

13 megapixels
12 megapixels

Hardware Features

Phase detection autofocus
Phase detection autofocus

Specifications

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

Second camera

 
2 megapixels

Flash

LED
Dual LED

Video recording

1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD)

Features

Video calling, Video sharing
Video calling, Video sharing

Front

13 megapixels
8 megapixels

Features

 
Flash

Design

Dimensions

6.03 x 3 x 0.34 inches (153.2 x 76.2 x 8.6 mm)
6.38 x 2.95 x 0.34 inches (162 x 74.9 x 8.65 mm)

Weight

6.38 oz (181 g)
the average is 6 oz (172 g)
6.17 oz (175 g)
the average is 6 oz (172 g)

Materials

 
Back: Plastic

Resistance

 
Splash, Dust

IP certified

 
IP 52

Biometrics

2D Face unlock
2D Face unlock, Fingerprint (touch)

Features

Touch sensitive control keys
 

Colors

Blue
Black

Hardware & Performance

System chip

Samsung Exynos 7 Octa 7870
MediaTek Helio P23 MT6763T

Processor

Octa-core, 1600 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2500 MHz, ARM Cortex-A53, 64-bit, 16 nm

GPU

Mali-T830 MP1
Mali-G71MP2

RAM

2 GB
3 GB

Internal storage

32 GB
32 GB

Maximum User Storage

 
26 GB

Storage expansion

up to 400 GB
up to 128 GB

OS

Android (8.0 Oreo)
Android (8.1 Oreo)

Battery

Capacity

3300 mAh
4000 mAh

Talk time

27.65 hours
the average is 22 h (1342 min)
14.00 hours
the average is 22 h (1342 min)

Stand-by time

27.9 days (670 hours)
the average is 20 days (480 h)
25.6 days (614 hours)
the average is 20 days (480 h)

Music playback

76.70 hours
 

Video playback

19.00 hours
 

Cellular

LTE (FDD)

Bands 2, 4, 5, 12, 66, 71
Bands 2, 4, 5, 12, 66, 71

UMTS

850, 1700/2100, 1900, 2100 MHz
850, 1700/2100, 1900 MHz

GSM

850, 900, 1800, 1900 MHz
850, 900, 1800, 1900 MHz

Data

LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Cat 6 (300/50 Mbit/s), HSPA, HSUPA, UMTS

SIM type

Nano SIM
Nano SIM

HD Voice

Yes
Yes

VoLTE

 
Yes

Connectivity

Bluetooth

4.2
4.2

Wi-Fi

802.11 a, b, g, n, ac, dual-band
802.11 b, g, n

USB

USB 2.0
Yes

Connector

microUSB
USB Type-C (reversible)

Features

Mass storage device
Mass storage device

Location

GPS, A-GPS, Glonass
GPS, A-GPS

Other

NFC, ANT+, UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync
Infrared, Tethering, Computer sync, OTA sync

Phone features

Sensors

Accelerometer, Gyroscope, Compass
Accelerometer

Notifications

Haptic feedback, Music ringtones, Vibration, Flight mode, Silent mode, Speakerphone
Haptic feedback, Music ringtones, Vibration

Hearing aid compatibility

M3, T3
M4, T3

Other features

Voice dialing, Voice commands, Voice recording, TTY/TDD
Voice dialing, Voice commands, Voice recording, TTY/TDD

Multimedia

Screen mirroring

Wireless screen share
Wireless screen share

Radio

 
FM

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Headphones connector

3.5mm
3.5mm

Regulatory Approval

FCC approval

 
 

Date approved

May 10, 2018
May 25, 2018

FCC ID value: A3LSMJ737T link
FCC ID value: 2ACCJBT09 link

FCC measured SAR

 
 

Head

1.36 W/kg
1.03 W/kg

Body

1.01 W/kg
1.10 W/kg

Simultaneous Transmission

1.58 W/kg
1.57 W/kg

Wireless Router

1.11 W/kg
1.18 W/kg

Phablet

3.60 W/kg
 

Shopping information

In The Box

USB cable, Wall charging adapter, Start guide, Terms & Conditions
 

MSRP price

 
$ 252
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