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Surface Book i7 vs. Surface Duo - Detailed Specs Comparison

Here's what you need to know what's different between Surface Book i7 and Surface Duo specs including CPU, RAM, storage, battery, display, and more.

BY Evan Forrest February 21, 2026

Surface Book i7 vs. Surface Duo

The 2016 Surface Book i7 features the 15W 6th Generation Intel Skylake dual-core Intel Core i7-6600U with the boost speed up to 3.40 GHz. While the 2020 Surface Duo features the 5W Qualcomm Snapdragon 8-core Qualcomm® Snapdragon™ 855 with a clock speed of 2.84 GHz.

If you are in the market looking for a laptop and don't know what's the difference between the 13.5″ Surface Book i7 (2016) and the 8.1″ Surface Duo (2020), we have a detailed tech specs comparison between both devices for you to check out here.

Surface Book i7 vs. Surface Duo: Specs Comparison

	Compare With Please enter device name or part of it Surface Book i7 See at Amazon	Compare With Please enter device name or part of it Surface Duo See at Amazon
Key Features
What's new	Performance Info Up to 6th Gen Intel® Core™ i7-6600U (2-Core, up to 3.40Ghz w/Turbo Boost) Up to NVIDIA® GeForce® GTX 965M (2GB GDDR5) Up to 1TB SSD Up to 16GB (1866Mhz LPDDR3 RAM) Up to 16 hours battery life (81Wh) Better Graphics Performance Now it comes with a better NVIDIA® GeForce® GTX 965M with 2GB GDDR5 memory. Longer Battery Life It now packs with a bigger battery in the base (51Wh → 63Wh) for longer battery life up to 16 hours. More powerful power adapter To supply enough juice for the graphics unit, it now comes with a bigger 102W power supply with a USB charging port.
What's missing	New Base with a bigger battery and newer graphics processor only available on Surface Book with Intel Core i7.

Availability	Surface Book i7	Surface Duo
Released	2016	2020
Release Info	Introduced: October 26, 2016 Pre-ordered: October 26, 2016 Released: November 10, 2016	Introduced: Microsoft October Event (October 2, 2019) Pre-ordered: August 12, 2020 Released: September 10, 2020
Pricing	Starting at 2,399$	$1,399 - 128 GB $1,499 - 256 GB
Amazon Deals	$322.99 Microsoft Surface Book 512GB Intel Core i7-6600U X2 2.6GHz 13.5", Silver (Renewed) $250.00 Microsoft Surface Book SW5-00001 2-in-1 Notebook PC - Intel Core i7-6600U 2.6 GHz Dual-Core Processor - 8 GB RAM - 256 GB Solid State Drive - 13.5-inch Touchscreen Display - (Renewed) $269.99 Microsoft Surface Book Tablet PC - 13.5" - PixelSense - Wireless LAN - Intel Core i7 i7-6600U Dual-core (2 Core) 2.60 GHz - Silver SW6-00001	$989.95 Microsoft Surface Duo 2 5G 256GB (Unlocked) - Obsidian $931.02 Microsoft Surface Duo 2 5G 128GB (Unlocked) - Glacier $869.99 Microsoft Surface Pro 2-in-1 Laptop/Tablet (2024), Windows 11 Copilot+ PC, 13" Touchscreen OLED Display, Snapdragon X Elite (12 Core), 16GB RAM, 256GB Storage, Black, Amazon Exclusive

Microsoft Surface Book i7-6600U Price
	Microsoft Surface Book 512GB Intel Core i7-6600U X2 2.6GHz 13.5", Silver (Renewed) By Microsoft $322.99	See at Amazon
	Microsoft Surface Book SW5-00001 2-in-1 Notebook PC - Intel Core i7-6600U 2.6 GHz Dual-Core Processor - 8 GB RAM - 256 GB Solid State Drive - 13.5-inch Touchscreen Display - (Renewed) By Microsoft $250.00	See at Amazon
	Microsoft Surface Book Tablet PC - 13.5" - PixelSense - Wireless LAN - Intel Core i7 i7-6600U Dual-core (2 Core) 2.60 GHz - Silver SW6-00001 By Microsoft $269.99	See at Amazon
Surface Duo Price
	Microsoft Surface Duo 2 5G 256GB (Unlocked) - Obsidian By Microsoft $989.95	See at Amazon
	Microsoft Surface Duo 2 5G 128GB (Unlocked) - Glacier By Microsoft $931.02	See at Amazon
	Microsoft Surface Pro 2-in-1 Laptop/Tablet (2024), Windows 11 Copilot+ PC, 13" Touchscreen OLED Display, Snapdragon X Elite (12 Core), 16GB RAM, 256GB Storage, Black, Amazon Exclusive By Microsoft $869.99 $1,004.54 13% OFF	See at Amazon

Display	Surface Book i7	Surface Duo
Size	13.5 Inches	8.1 Inches
Info	Display Resolution: 3000 x 2000 (6M Pixels) Display Density: 267 PPI PixelSense™ Display Aspect ratio: 3:2 Contrast ratio: 1700:1 Inking: designed together with Surface Pen Touch: 10 points multi-touch	Dual PixelSense™ Fusion Displays open: 8.1” AMOLED, 2700x1800 (3:2), 401 PPI Single PixelSense™ Display: 5.6” AMOLED, 1800x1350 (4:3), 401 PPI Display Material: Corning® Gorilla® Glass

Exterior	Surface Book i7	Surface Duo
Size Comparison
Dimensions	12.3” x 9.14” x 0.59”-0.90” (312 mm x 232 mm x 15 mm-23 mm)	7.35 x 5.71 x 0.18 (186.9 mm x 145.2 mm x 4.8 mm) Open 3.67 x 5.71 x 0.38 (93.3 mm x 145.2 mm x 9.9 mm) Closed
Weight	Tablet only: 1.6 lbs (726 g) Total: 3.68 lbs (1,669 g)	0.55 lbs (250 g)
Colors	Platinum	Glacier
Keyboard and Trackpad	Keyboard: Full-size mechanical backlit keyset with 1.55mm travel. Mechanical friction attaches the Clipboard to the keyboard. Trackpad: Larger size 105 mm x 70 mm, glass. Supports up to Five-finger multitouch gesture.
Ports	2 x Full-size USB 3.0 2 x Surface Connect™ 1 in tablet, 1 in keyboard base, both supports charging and docking. 1 x Mini DisplayPort 1 x Headset jack 1 x Full-size SDXC card reader (UHS-II performance)	1 x USB Type-C 1 x SIM card slot

Internal Specs	Surface Book i7	Surface Duo
Processor	6th Gen Intel® Core™ i7-6600U 2 cores, 4 threads, 2.60 → 3.40 GHz, 4MB SmartCache, 15W	Qualcomm® Snapdragon™ 855 8 cores, 8 threads, 2.84 GHz, 5MB Cache, 5W
Integrated Graphics	6th Gen Intel® Core™ i7-6600U Intel® HD Graphics 520 24 Execution Units, 300 → 1050 MHz	Qualcomm® Snapdragon™ 855 Qualcomm® Adreno™ 640 GPU 585 MHz
Discrete Graphics	NVIDIA® GeForce® GTX 965m Maxwell Architecture, 2GB GDDR5 128-bit, 924/935 - 950/1151 MHz, 1024 CUDA Cores.
Memory	8GB 16GB 1866 MHz LPDDR3 RAM	6GB DRAM
Storage	256 GB 512 GB 1 TB Soldered PCIe 3.0 SSD	128GB 256GB UFS 3.0 of internal storage

Connectivity	Surface Book i7	Surface Duo
Wi-Fi	Wi-Fi 5: IEEE 802.11 a/b/g/n/ac compatible.	WiFi-5 802.11ac (2.4/5GHz)
Bluetooth	Bluetooth Wireless 4.0 technology	Bluetooth Wireless 5.0 technology
		LTE: 4x4 MIMO, Cat.18 DL / Cat 5 UL, 5CA, LAA. Up to 1.2Gbps Download / Up to 150Mbps Upload Bands Supported: FDD-LTE: 1,2,3,4,5,7,8,12,13,14,19,20,25,26,28,29,30,66 TD-LTE: 38,39,40,41,46 WCDMA: 1,2,5,8 GSM/GPRS: GSM-850, E-GSM-900, DCS-1800, PCS-1900 Location: GPS, Galileo, GLONASS, BeiDou, QZSS One eSIM and one Nano SIM Note: AT&T locked device will not support eSIM

Battery	Surface Book i7	Surface Duo
Size	Total: 81Wh Clipboard: 18Wh Base: 63Wh	3577 mAh
Battery Life	Up to 16 hours of video playback	Up to 15.5 hours of Local Video Playback Up to 10 days of Standby Time Up to 27 hours of Talk Time
Power Supply	102W power supply with USB-A (5W) charging port.	18W USB-C PD charger

Software	Surface Book i7	Surface Duo
OS	Windows 10 Pro	Android™ 10 3-years of software updates.
Built-in Apps	Microsoft Office 365 30-days trial	Microsoft built-in applications: Microsoft Office: Word, Excel, PowerPoint, Office Lens, PDF Reader, and more Microsoft Outlook Microsoft Teams Microsoft OneDrive Microsoft Edge Microsoft OneNote Microsoft To Do Microsoft News Microsoft Authenticator Microsoft Bing Search Intune Company Portal LinkedIn Microsoft Solitaire Collection Surface Audio Microsoft Surface Duo UI core features: Dual screen windowing Adaptive modes App Groups Microsoft 365 Feed Dynamic dock Universal Search Adaptive Camera Microsoft SwiftKey Adaptive Keyboard Your Phone Companion - Link to Windows Other preinstalled apps: Google Search Google Assistant Google Calendar Google Drive Google Duo Google Photos Google Play Movies & TV Google Play Store Google Maps Chrome Gmail YouTube YouTube Music Contacts Messages Phone Files Clock Calculator Sound recorder Spotify (Unlocked) HBO MAX (AT&T) AT&T TV (AT&T) My AT&T (AT&T) Call Protect (AT&T) Amazon Shopping (AT&T) NBA (AT&T)

Camera & Audio	Surface Book i7	Surface Duo
Camera	Windows Hello face authentication camera (front-facing) 5.0MP front-facing camera with 1080p HD video 8.0MP rear-facing autofocus camera with 1080p HD video	Adaptive camera 11MP, f/2.0, 1.0 µm, PDAF and 84.0° diagonal FOV optimized with AI for front and rear Photos: Auto mode with low-light & HDR multi-frame photo capture and dynamic range scene detection Super-resolution zoom, and super zoom up to 7x Portrait mode with adjustable depth control Panorama mode Burst mode Video recording: 4K video recording at 30 fps and 60 fps 1080p video recording at 30 fps and 60 fps HEVC and H.264 video recording formats Gyro-based digital video stabilization Video Conferencing Microsoft Teams and Skype video conferencing up to 1080p at 30fps High CRI LED Flash for both front and world facing photo and video scenarios
Audio	Dual microphones Front-facing stereo speakers with Dolby® Audio™ Premium	Mono speaker Dual Mic noise suppression and echo cancellation optimized for productive use in all postures Best-in-class Full Duplex communication for voice calls in hands-free mode Audio formats supported: 3GP, MP3, MP4, MKV, WAV, OGG, M4A, AAC, TS, AMR, FLAC, MID, MIDI, RTTL, RTX, OTA, IMY Qualcomm® aptX™ Adaptive

Misc	Surface Book i7	Surface Duo
Inking	Supports Surface Pen 1024 levels of pressure Magnetic storage	Supports all in market generations of Surface Slim Pen, Surface Pen and Surface Hub 2 Pen 4096 levels of pressure Tilt sensing Best in class latency Paper feel magnetic storage
Sensors	Ambient light sensor Proximity sensor Accelerometer Gyroscope Magnetometer	Dual Accelerometer Dual Gyroscope Dual Magnetometer Dual Ambient Light Sensor Proximity Sensor Hall Sensor Fingerprint Sensor
Security	HW TPM chip for enterprise security Enterprise-grade protection with Windows Hello face sign-in	Biometric lock type: Fingerprint reader (1:100K FAR <3% FRR) Lock type: Swipe, PIN, password Security applications pre-loaded on the device: Microsoft Authenticator
In the box	Surface Book Surface Pen Power supply Quick Start Guide Safety and warranty documents	Surface Duo Surface Duo Bumper (Color: Glacier) Surface Duo USB-C® Power Supply (18w) Quick Start Guide Warranty and Compliance Guide SIM Ejector tool
Warranty	One-year limited hardware warranty	One-year limited hardware warranty
More	Supports Surface Dial Supports off-screen interaction only.	Exterior Material: Corning® Gorilla® Glass