Samsung Galaxy S9+ vs Microsoft Surface Duo Specs Comparison

Design

Dimensions
6.22 x 2.91 x 0.33 inches 158.1 x 73.8 x 8.5 mm	7.36 x 5.72 x 0.19 inches 186.9 x 145.2 x 4.8 mm
Folded
	(145.2 x 93.3 x 9.9 mm)
Weight
6.67 oz (189.0 g)	8.82 oz (250.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5) Frame: Aluminum	Back: Glass (Corning Gorilla Glass 5)
Resistance
Water, Dust; IP68
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, Polaris blue	Glacier

Display

Size
6.2-inch	8.1-inch
Resolution
2960x1440px, 18.5:9 ratio, 531 PPI	2700x1800px, 3:2 ratio, 401 PPI
Technology
Super AMOLED	AMOLED
Screen-to-body
83.68 %	71.93 %
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor	360° folding, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Front cover display
	5.6 inches 1800 x1350 px AMOLED Scratch-resistant glass (Corning Gorilla Glass 5), Part of the main display
Rear cover display
	5.6 inches 1350 x1800 px AMOLED Scratch-resistant glass (Corning Gorilla Glass 5), Part of the main display

Hardware

System chip
Qualcomm Snapdragon 845 SDM845 (10 nm)	Qualcomm Snapdragon 855 SM8150 (7 nm)
Processor
Octa-core 2800 MHz Kryo 385	Octa-core 2840 MHz Kryo 485
GPU
Adreno 630	Adreno 640
RAM
6GB (LPDDR4)	6GB (LPDDR4)
Internal storage
64GB	128GB (UFS 3.0)
Storage expansion
microSDXC up to 400 GB	not expandable
OS
Android (10, 9.0 Pie, 8.0 Oreo), Samsung One UI	Android (10)

Battery

Capacity
3500 mAh	3577 mAh
Type
Li - Ion
Charging
Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging	Fast charging
Charge speed
	Wired: 18.0W

Camera

Rear
Dual camera	Single camera, Doubles as a selfie camera
Main camera
12 MP (OIS, PDAF) Aperture size: F1.5/F2.4 Focal length: 26 mm Sensor size: 1/2.55" Pixel size: 1.4 μm	11 MP (PDAF) Aperture size: F2.0
Second camera
12 MP (Telephoto, OIS, Autofocus) Optical zoom: 2.0x Aperture size: F2.4 Focal Length: 52 mm Sensor size: 1/3.6" Pixel size: 1 μm
Flash
LED	LED
Video recording
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps) HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, EIS, Video calling, Video sharing	3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (60 fps) EIS
Front
8 MP (Autofocus, HDR), Video capture: 2560x1440 (QHD) (30 fps)

Connectivity & Features

Bluetooth
5.0	5.0
WLAN
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, USB 3.1	Type-C, USB 3.1
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, Hall (for flip covers), Heart rate
Other
NFC, ANT+

Multimedia

Headphones
3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Loudspeaker
Features
32-Bit DAC, Dolby Atmos, aptX-HD	aptX
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM
Additional microphone(s)
Noise cancellation	Noise cancellation

Cellular

4G (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), 12(700 a), 13(700 c), 14(700 PS), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3)
4G (TDD)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46	Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46
3G
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)	Bands 1(2100), 2(1900), 5(850), 8(900)
Data Speed
LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA	LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
	Yes
SIM type
Nano SIM	Nano SIM, eSIM

Regulatory Approval

FCC approval
Date approved: Jan 11, 2018 FCC ID value: A3LSMG965U
Measured SAR
Head: 0.36 W/kg Body: 0.79 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.04 W/kg Phablet: 3.94 W/kg

Buyers information

MSRP
$ 840	$ 1399
In The Box
	Bumper (Color: Glacier), Power Supply (18w), Quick Start Guide, Warranty and Compliance Guide, SIM Ejector tool

Availability

Officially announced
Feb 25, 2018	Aug 12, 2020

Alternative variants

International version

System chip	Samsung Exynos 9 9810 (10 nm)
Processor	Octa-core 2900 MHz Exynos M3 and ARM Cortex-A55
GPU	Mali-G72 MP18
FCC approval	Date approved: Dec 27, 2017 FCC ID value: A3LSMG965F
Measured SAR	Head: 0.23 W/kg Body: 0.58 W/kg Simultaneous Transmission: 1.46 W/kg Wireless Router: 1.05 W/kg Phablet: 3.68 W/kg

with 256GB storage

Internal storage	256GB
MSRP	$ 1500

with Dual SIM

System chip	Samsung Exynos 9 9810 (10 nm)
Processor	Octa-core 2900 MHz Exynos M3 and ARM Cortex-A55
GPU	Mali-G72 MP18
Dual SIM	Yes

with 256 GB storage

Internal storage	256GB
MSRP	$ 940

with 128 GB storage

Internal storage	128GB
MSRP	$ 890

Links

Full specifications
Samsung Galaxy S9+ Specs	Microsoft Surface Duo Specs
PhoneArena Review
Samsung Galaxy S9+ Review
User Reviews
Samsung Galaxy S9+ User Reviews	Microsoft Surface Duo User Reviews