Compare Microsoft Surface Duo

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Photos relative in size Front Side Back	Microsoft Surface Duo‎	Google Pixel 3a‎ $ 114.99	Google Pixel 6a‎ $ 359.99	Samsung Galaxy S9‎

Dimensions	145.2 x 93.3 x 9.9 mm	151.3 x 70.1 x 8.2 mm	152.2 x 71.8 x 8.9 mm	147.7 x 68.7 x 8.5 mm
Weight	250 grams	147 grams	178 grams	163 grams
Stand-by	1.4 week	depends on usage	depends on usage	depends on usage
Talk time	27 hour	depends on usage	depends on usage	depends on usage
Design type
Clamshell
Monoblock
Controls
Facial unlock
Fingerprint recognition			Pressure sensitive in-screen
Stylus
Touchscreen	Multi-touch, Capacitive	Multi-touch, Capacitive	Multi-touch, Capacitive	Multi-touch, Force Touch, Capacitive
Voice command
Voice dialing
Iris recognition
Operating system
Android	10	9.0 (Pie)	12	8.0 (Oreo)
User interface
Surface Duo UI
Samsung Experience
Display
Auto-rotate
Color display	Adjustable display brightness, 16.777.216 colors (24 bits), PixelSense Display	Adjustable display brightness, 16.777.216 colors (24 bits), OLED, Always On feature, HDR10	Adjustable display brightness, 16.777.216 colors (24 bits), OLED, Always On feature, HDR10, Hole-punch display	Adjustable display brightness, 16.777.216 colors (24 bits), Infinity Super AMOLED Quad HD+, Always On feature
Size	5.6 inch	5.6 inch	6.1 inch	5.8 inch
Resolution	1800 x 1350 pixels	2220 x 1080 pixels	2340 x 1080 pixels	2960 x 1440 pixels
Refresh rate			60 Hz
Aspect ratio	4:3	18.5:9	19.5:9	18.5:9
Pixels Per Inch (PPI)	402	441	422	568
Screen-to-body ratio	71.7%	75%	83.6%	84.1%
External display	16.777.216 colors (24-bits), OLED
Size	5.6 inch
Resolution	1800 x 1350 pixels
Aspect ratio	4:3
Pixels Per Inch (PPI)	402
Screen-to-body ratio	71.7%
Hardware
Camera	Auto focus, Digital zoom, Effects/camera settings, Flash, Geotagging, Quality settings, Video recorder, self-timer	Auto focus, Image stabilization, Digital zoom, Effects/camera settings, Flash, Geotagging, Quality settings, Macro mode, Mosaic photo, Burst (Continuous) Shooting, Night mode, Portrait mode, Video recorder, self-timer	Dual camera sensor, Auto focus, Image stabilization, Digital zoom, Effects/camera settings, Flash, Geotagging, Quality settings, Macro mode, Mosaic photo, Burst (Continuous) Shooting, Night mode, Portrait mode, Video recorder, self-timer	Auto focus, Image stabilization, Blink Shot, Digital zoom, Effects/camera settings, Flash, Geotagging, Face recognition, Quality settings, Macro mode, Mosaic photo, Burst (Continuous) Shooting, Night mode, Panoramic photo, Portrait mode, Smile Shot, Video recorder, self-timer
Type	11 MP	12.2 MP	12 MP + 12.2 MP	12.2 MP
Angle of view (AOV)	84°	76°	114° + 77°
DxOMark score		100
F-number	f/2.0	f/1.8	f/1.7 + f/2.2	f/1.5 + f/2.4
Max. resolution	(video) 3840 x 2160 pixels	(camera) 4208 x 3120 pixels + (video) 3840 x 2160 pixels	(camera) 4640 x 3480 pixels + (video) 3840 x 2160 pixels	(camera) 4032 x 3024 pixels + (video) 3840 x 2160 pixels
Foldable design
Haptic feedback
Integrated antenna
Processor	Qualcomm Snapdragon 855	Qualcomm Snapdragon 670, Octa core	Google Tensor, Octa core	Samsung Exynos 9810, Octa core
Clock Frequency		1.7 GHz + 2.0 GHz		1.7 GHz + 2.8 GHz
Secondary camera				Autofocus
Type	11 MP	8 MP	8 MP	8 MP
Angle of view (AOV)		84°	84°
F-number		f/2.0	f/2.0	f/1.7
Max. resolution		(camera) 3264 x 2448 pixels + (video) 1920 x 1080 pixels	(camera) 3264 x 2448 pixels + (video) 1920 x 1080 pixels	(camera) 3264 x 2448 pixel + (video) 3840 x 2160 pixels
Materials
Gorilla Glass			3
Dust and waterproof			IP67	IP68
Glass
Plastic
Telephony
Dual SIM
eSIM
Flight mode
Integrated handsfree speaker
nano-SIM (4FF)
Vibrating alert
Videoconferencing
Operating frequency
Quad band
Data network
4G (LTE)	Cat 18 (1200 Mbps), Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 19, Band 20, Band 25, Band 26, Band 28, Band 29, Band 30	Cat 11 (600 Mbps), Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 20, Band 25, Band 26, Band 28, Band 38, Band 40, Band 41	Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 29, Band 30, Band 38, Band 39, Band 40, Band 41	Cat 18 (1200 Mbps), Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 17, Band 20, Band 28
EDGE
GPRS
HSDPA				Cat20 42 Mbps
HSUPA	Cat6 5.76 Mbps			Cat6 5.76 Mbps
UMTS
5G			n1, n2, n3, , , n8, n12, n20, n25, n28, n38, , n41, n66, n71, n77, n78
Personalisation
Multiple homescreens
Widgets
Personal Information Management (PIM)
Agenda
Alarm clock
Calculator
Contact list
Date and time notation
Document viewer	Excel files, PowerPoint files, PDF files, Word files	Excel files, PowerPoint files, PDF files, Word files	Excel files, PowerPoint files, PDF files, Word files	Excel files, PowerPoint files, PDF files, Word files
Phonebook with groups
Photo phonebook
Reminder list
Stopwatch & countdown timer
To-do list
Voice memo
Available applications
Image editor
Photo album
Video codec support	H.263, H.264, H.265, MPEG-4, Windows Media Video 9	H.263, H.264, MPEG-4	H.263, H.264, MPEG-4	DivX, H.263, H.264, MPEG-4, Sorenson Spark, VC-1, VP8
Video file support	3GP, AVI, FLV, MKV, MOV, MP4, WebM, WMV			3GP, 3G2, ASF, AVI, FLV, M4V, MKV, MP4, WebM, WMV
Java application support
Movie editor
Messaging
E-mail	POP3, SMTP, IMAP4, MIME	POP3, SMTP, IMAP4	POP3, SMTP, IMAP4	POP3, SMTP, IMAP4
SMS	Group messaging, Receive and send concatenated messages	Group messaging, Receive and send concatenated messages	Group messaging, Receive and send concatenated messages	Group messaging, Receive and send concatenated messages
Instant messaging		Google Talk	Google Talk	Google Talk
MMS		Video MMS	Video MMS	Video MMS
Predictive Text Input		T9	T9	T9
Internet
Internet browser	Edge	Google Chrome	Google Chrome
YouTube support
RSS reader
Navigation
A-GPS
Beidou
Build-in navigation system	Google Maps, Google Maps Navigation	Google Maps, Google Maps Navigation	Google Maps, Google Maps Navigation	Google Maps, Google Maps Navigation
Digital Compass
Galileo
GLONASS
GPS receiver
Quasi-Zenith (QZSS)
Audio
Audio codec support	AAC, AMR, aptX, EVRC, MIDI, MP3 VBR, OGG Vorbis, RTTL/RTX	AAC, AAC+, AC3, eAAC+, aptX, LDAC	AAC, AAC+, AC3, eAAC+, aptX, LDAC	AAC, AAC+, AC3, eAAC+, AMR, FLAC, MIDI, Mobile XMF, MP3 VBR, OGG Vorbis, OTA, RTTL/RTX
Audio file support	M4A, MP3, MP4, WAV	MP3, WAV	MP3, WAV	M4A, MP3, WAV, WMA
Polyphonic ringtones	MP3 ringtones	MP3 ringtones	MP3 ringtones	MP3 ringtones
Stereo speakers
Build-in memory
Internal memory
Size (RAM)	6 GB	4 GB	6 GB	4 GB
Storage	128 GB + 256 GB	64 GB	128 GB	256 GB + 64 GB
Memory card slot
Connections
USB	v3.1, Type-C	v2.0, Type-C	v3.1, Type-C	v3.0, Type-C
Audio jack plug		3.5 mm		3.5 mm
Connectivity
Bluetooth	v5.0, Advanced Audio Distribution Profile (A2DP)	v5.0, Advanced Audio Distribution Profile (A2DP)	v5.2, Advanced Audio Distribution Profile (A2DP)	v5.0, Advanced Audio Distribution Profile (A2DP)
Synchronisation		ActiveSync, SyncML	ActiveSync, SyncML	ActiveSync, SyncML
Tethering
Video Out
Wireless Lan (WLAN/Wi-Fi)	Wi-Fi 5 (802.11ac)	Wi-Fi 5 (802.11ac), WiFi Direct support	Wi-Fi 6E, WiFi Direct support	Wi-Fi 5 (802.11ac), WiFi Direct support
DLNA support
NFC
WAP		2.0	2.0	2.0
Power supply
Battery	Li-ion	Li-ion	Li-ion	Li-ion
Capacity	3577 mAh	3000 mAh	4410 mAh	3000 mAh
Fast charging		Qualcomm Quick Charge, USB Power Delivery	Qualcomm Quick Charge, USB Power Delivery	Qualcomm Quick Charge, Samsung Adaptive Fast Charging
Max. power	18 Watt		18 Watt
Wireless charging
Sensors
Active Digitizer
Ambient light sensor
Gesture recognition
Gyroscope
Proximity sensor
Barometer
Edge sensor
Heart rate monitor
Hygrometer
Compatibility
With Google Daydream