Samsung Galaxy S9 vs Xiaomi Redmi Note 9

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from $240
from $180

Display

Size

5.8 inches
6.5 inches

Resolution

2960 x 1440 pixels, 18.5:9 ratio,
568 PPI
2340 x 1080 pixels, 19.5:9 ratio,
395 PPI

Technology

Super AMOLED
IPS LCD

Screen-to-body

84.36 %
83.52 %

Features

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

Hardware

System chip

Qualcomm Snapdragon 845 SDM845
MediaTek Helio G85

Processor

Octa-core, 2800 MHz, Kryo 385, 64-bit, 10 nm
Octa-core, 2000 MHz, Arm Cortex-A75 and ArmCortex-A55, 64-bit, 12 nm

GPU

Adreno 630
Mali G52 MC2

RAM

4GB LPDDR4
3GB LPDDR4

Internal storage

64GB
64GB (eMMC 5.1)

Storage expansion

microSDXC up to 400 GB
microSDXC up to 128 GB

Device type

Smartphone
Smartphone

OS

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

Battery

Capacity

3000 mAh
5020 mAh

Type

Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable

Battery life test results

 

Charging

Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging
Fast charging, Reverse charging

Max charge speed

 
Wired: 18.0W

Camera

Rear

Single camera
Quad camera

Main camera

12 MP (OIS, PDAF)
48 MP (PDAF)

Specifications

Aperture size: F1.5/F2.4; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.8; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera

 
8 MP (Ultra-wide)

Specifications

 
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.2 μm

Third camera

 
2 MP (Macro, Autofocus)

Specifications

 
Aperture size: F2.4; Pixel size: 1.75 μm

Fourth camera

 
2 MP

Specifications

 
Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.7 μm

Video recording

3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)

Features

HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video calling, Video sharing
 

Front

8 MP (Autofocus, HDR)
13 MP (HDR)

Design

Dimensions

5.81 x 2.70 x 0.33 inches (147.7 x 68.7 x 8.5 mm)
6.39 x 3.04 x 0.35 inches (162.3 x 77.2 x 8.9 mm)

Weight

5.75 oz (163.0 g)
the average is 6.3 oz (179 g)
7.02 oz (199.0 g)
the average is 6.3 oz (179 g)

Materials

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

Resistance

Water, Dust; IP 68
Splash

Biometrics

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

Features

Notification light
 

Keys

Left: Volume control, Other; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors

Midnight black, Coral blue, Titanium gray, Lilac purple, Burgundy red, Sunrise gold, Ice blue
Forest green, Polar white, Midnight gray

Cellular

LTE (FDD)

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)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD)

Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46
Bands 38(2600), 40(2300), 41(2600+)

UMTS

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

Data Speed

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

Dual SIM

 
Yes

SIM type

Nano SIM
Nano SIM

VoLTE

 
Yes

Multimedia

Headphones

3.5mm jack
3.5mm jack

Speakers

Earpiece, Multiple speakers
Earpiece, Loudspeaker

Features

32-Bit DAC, aptX-HD
 

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
 

Additional microphone(s)

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth

5.0
5.0

Wi-Fi

802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB

Type-C (reversible), USB 3.1
Type-C (reversible), USB 2.0

Features

Charging, OTG, Video out
Charging

Location

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

Sensors

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

Other

NFC, ANT+
NFC, Infrared

Regulatory Approval

FCC approval

 
 

Date approved

Jan 11, 2018
 

FCC ID value: A3LSMG960U link
 

Measured SAR

 
 

Head

0.35 W/kg
 

Body

0.96 W/kg
 

Simultaneous Transmission

1.59 W/kg
 

Wireless Router

0.95 W/kg
 

Buyers information

Price

$ 720
 

In The Box

 
22.5W Charger, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card

Availability

Officially announced

Feb 25, 2018
Apr 30, 2020
This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at https://www.parsintl.com/phonearena or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit https://www.parsintl.com/ for samples and additional information.
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