Samsung Galaxy J8 vs Xiaomi Redmi 9 Specs Comparison

Design

Dimensions
6.27 x 2.98 x 0.32 inches 159.2 x 75.7 x 8.2 mm	6.43 x 3.03 x 0.36 inches 163.32 x 77.01 x 9.1 mm
Weight
6.24 oz (177.0 g)	6.98 oz (198.0 g)
Materials
Back: Plastic
Biometrics
2D Face unlock, Fingerprint (touch)	2D Face unlock, Fingerprint (touch)
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, Gold, Pink, Blue	Carbon gray, Sunset purple, Ocean green

Display

Size
6.0-inch	6.5-inch
Resolution
1480x720px, 18.5:9 ratio, 274 PPI	2340x1080px, 19.5:9 ratio, 395 PPI
Technology
Super AMOLED	IPS LCD
Screen-to-body
75.79 %	83.27 %
Features
Proximity sensor	Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 450 SDM450 (14 nm)	MediaTek Helio G80 (12 nm)
Processor
Octa-core 1800 MHz ARM Cortex-A53	Octa-core 2000 MHz Arm Cortex-A75 and Arm Cortex-A55
GPU
Adreno 506	Mali G52 MC2
RAM
4GB (LPDDR3)	3GB (LPDDR4)
Internal storage
64GB, available to use: 51 GB	32GB (eMMC 5.1)
Storage expansion
microSDXC up to 256 GB	microSDXC
OS
Android (10, 8.0 Oreo), Samsung TouchWiz UI	Android

Battery

Capacity
3500 mAh	5020 mAh
Charging
	Qualcomm Quick Charge 3.0
Charge speed
	Wired: 18.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

Untested

Browsing

Untested

Video

9h 15min

Gaming

7h 3min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Dual camera	Quad camera
Main camera
16 MP (PDAF, CCD image sensor) Aperture size: F1.7 Focal length: 26 mm Sensor size: 1/2.8" Pixel size: 1.12 μm	13 MP (PDAF) Aperture size: F2.2
Second camera
5 MP (Depth information) Aperture size: F1.9 Focal Length: 24 mm Sensor size: 1/5" Pixel size: 1.12 μm	8 MP (Ultra-wide) Aperture size: F2.2
Third camera
	5 MP (Macro) Aperture size: F2.4
Fourth camera
	2 MP (Depth information)
Flash
LED	LED
Video recording
1920x1080 (Full HD) (30 fps) Video calling, Video sharing	1920x1080 (Full HD)
Front
16 MP (Flash, HDR)	8 MP (HDR), Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
4.2	5.0
WLAN
802.11 b,g,n Wi-Fi Direct, Hotspot	802.11 b,g,n Wi-Fi Direct, Hotspot
USB
microUSB, USB 2.0	Type-C, USB 2.0
Location
GPS, A-GPS, Glonass, BeiDou	GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Hall (for flip covers)	Accelerometer, Gyroscope, Compass
Other
ANT+, VoIP, Tethering, Computer sync, OTA sync	NFC, Infrared

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Features
Dolby Atmos, Album art cover, Background playback
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM	FM
Additional microphone(s)
	Noise cancellation

Cellular

4G (FDD)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
4G (TDD)
Bands 38(2600), 40(2300), 41(2600+)	Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 5(850), 8(900), 2(1900), 1(2100)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Cat 6 (300/50 Mbit/s), HSPA, HSUPA	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes	Yes
SIM type
Nano SIM	Nano SIM
HD Voice
	Yes
VoLTE
	Yes

Buyers information

In The Box
Charger, microUSB cable, Documentation, Quick Start Guide, Headphones and SIM removal tool.	10W Charger, TPU case, USB Type-C cable, SIM eject tool, Warranty card, User guide

Availability

Officially announced
Jun 27, 2018

Alternative variants

with 64GB storage

RAM	4GB
Internal storage	64GB

Links

Full specifications
Samsung Galaxy J8 Specs	Xiaomi Redmi 9 Specs
PhoneArena Review
	Xiaomi Redmi 9 Review
User Reviews
	Xiaomi Redmi 9 User Reviews