Samsung Galaxy S9 vs Xiaomi Mi 9
Display
Display size
Resolution
Pixel density
Technology
Super AMOLED
AMOLED
Screen-to-body ratio
84.36 %
85.23 %
Features
HDR video support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
HDR video support, Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 6), Ambient light sensor, Proximity sensor
Camera
Rear
Single camera
Triple camera
Main camera
Hardware Features
Optical image stabilization, Phase detection autofocus
Sapphire crystal lens cover, Laser and Phase detection autofocus, CMOS image sensor
Specifications
Aperture size: F1.5/F2.4; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera
12 megapixels
Hardware Features
Telephoto, Sapphire crystal lens cover, Phase detection autofocus
Specifications
Optical zoom: 2x; Aperture size: F2.2; Focal Length: 50 mm; Sensor size: 1/3.4"; Pixel size: 1 μm
Third camera
16 megapixels
Hardware Features
Ultra-wide, Sapphire crystal lens cover, Phase detection autofocus
Specifications
Aperture size: F2.2; Focal Length: 17 mm; Sensor size: 1/3"; Pixel size: 1 μm
Video recording
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (960 fps), 1280x720 (HD) (960 fps)
Features
High Dynamic Range mode (HDR), Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video calling, Video sharing
Continuous autofocus, Digital image stabilization, Video calling, Video sharing
Front
8 megapixels
20 megapixels
Features
Autofocus, High Dynamic Range mode (HDR)
High Dynamic Range mode (HDR)
Design
Dimensions
Weight
the average is 6.1 oz (174 g)
the average is 6.1 oz (174 g)
Materials
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Back: Glass (Corning Gorilla Glass 5); Frame: Metal
Resistance
Water, Dust; IP 68
Biometrics
Iris scanner, 2D Face unlock, Fingerprint (touch)
In-screen fingerprint
Features
Notification light
Colors
Black, Gold, Gray, Purple, Blue, Red
Black, Purple, Blue
Multimedia
Headphones
3.5 mm jack
USB Type-C (reversible)
Speakers
Earpiece, Multiple speakers
Earpiece, Loudspeaker
Features
32-Bit DAC, aptX-HD
aptX-HD
Screen mirroring
Wireless screen share
Wireless screen share
Radio
FM
Additional microphone(s)
for Noise cancellation
Hardware & Performance
System chip
Qualcomm Snapdragon 845 SDM845
Qualcomm Snapdragon 855
Processor
GPU
Adreno 630
Adreno 640
RAM
Internal storage
64 GB
128 GB, not expandable
Storage expansion
microSDXC up to 400 GB
OS
Android (9.0 Pie, 8.0 Oreo), Samsung One UI
Android (9.0 Pie), Xiaomi MI UI
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; MIMO, Wi-Fi Direct, Hotspot
USB
USB Type-C (reversible), USB 3.1
USB Type-C (reversible), USB 2.0
Features
USB OTG, Video out
Mass storage device, USB OTG
Location
GPS, A-GPS, Glonass, Galileo, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass
Mobile Payment
Samsung Pay
Other
NFC, ANT+
NFC, Infrared, VoIP, Tethering, Computer sync, OTA sync
Cellular
LTE (FDD)
Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71
Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28
LTE (TDD)
Bands 38, 39, 40, 41, 46
Bands 38, 39, 40
UMTS
850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz
Data
Dual SIM
Yes
SIM type
Nano SIM
Nano SIM
HD Voice
Yes
VoLTE
Yes
Battery
Capacity
3000 mAh
3300 mAh
Type
Li - Ion, Not user replaceable
Not user replaceable
Charging
Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging
Qualcomm Quick Charge 4+, Qi wireless charging
Talk time
the average is 20 h (1174 min)
Stand-by time
the average is 20 days (491 h)
Internet use
3G: 11 hours; LTE: 12 hours; Wi-Fi: 14 hours
Music playback
51.00 hours
Video playback
17.00 hours
Phone features
Notifications
Haptic feedback, Music ringtones, Vibration
Other features
Voice dialing, Voice commands, Voice recording
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
Shopping information
In The Box
Case, 18W Charger, USB Type-C cable, Type-c to 3.5 mm adapter, SIM removal tool, Documentation
MSRP price
$ 720
