Samsung Galaxy S9 vs Xiaomi Redmi Note 9
Compare phone and tablet specifications of up to three devices. Type a model name in the search field of our phone specs comparison tool or pick a popular device from the ones below.
Display
Size
Resolution
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
GPU
Adreno 630
Mali G52 MC2
RAM
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
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
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
Weight
the average is 6.3 oz (179 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
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
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
