Surface DuoSource: Windows Central

The Surface Duo is now official! Microsoft has unveiled everything you need to know about its first dual-screen Android smartphone, including specs, price, and release date. It's coming September 10 for $1,400, and features a Snapdragon 855, 6GB RAM, and 128GB and 256GB storage configurations. Here's the full specs list:

Surface Duo specs

Surface Duo Press Thin ProfileSource: Microsoft

Category Surface Duo
Operating System Android 10
Display Single: 5.6 inch (1800x1350), 401 ppi, 4:3 aspect ratio
Opened: 8.1 inch (2700x1800), 401 ppi, 3:2 aspect ratio
Wide color gamut: 100% SRGB and 100% DCI-P3
Corning Gorilla Glass
Processor Qualcomm Snapdragon 855
Network WiFi-5 802.11ac (2.4/5GHz)
Bluetooth 5.0
LTE: 4x4 MIMO, Cat.18 DL / Cat 5 UL
SIM Nano SIM + eSIM (no eSIM on AT&T model)
Network Bands 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
Memory 6GB RAM
Storage 128GB or 256GB UFS 3.0
Expandable Storage None
Camera 11MP, ƒ/2.0 1.0um, PDAF, 84.0° diagonal FOV
Optimized with AI for front and rear
Audio Mono speaker
Dual mic with noise suppression and echo cancellation
Qualcomm aptX Adaptive
Security Fingerprint
Ports 1x USB-C 3.1
Battery 3,577mAh
Up to 15.5 hours of Local Video Playback
Up to 10 days of Standby Time
Up to 27 hours of Talk Time
Fast Charging using 18W in-box power supply
Pen Surface Pen (not included)
Dimensions Open: 145.2mm (H) x 186.9mm (W) x 4.8mm (T)
Closed: 145.2mm (H) x 93.3mm (W) x 9.9mm (T at hinge)
Weight 250 grams

Snapdragon 855 vs Snapdragon 865

Qualcomm Snapdragon 7cSource: Qualcomm

I'm sure many of you are wondering why Microsoft isn't using the latest Snapdragon processor from Qualcomm inside the Surface Duo, and the reason seems to be rooted in the fact that Qualcomm requires all smartphone makers to include a separate 5G chip with the Snapdragon 865. Surface Duo's internal design was finalized way before that requirement was known about, and therefore doesn't have room for the additional 5G chip that's required when using the Snapdragon 865.

If Microsoft were to use the Snapdragon 865 inside the Surface Duo, it would have to significantly redesign the hardware inside and out to accomodate the required chip, throwing out most of the work that Microsoft has put into Surface Duo V1. Critics have touted the Snapdragon 865 as a step backwards in smartphone design for this very reason, as it also uses more battery and increases the price of smartphones. This should change when Qualcomm builds a 5G modem into the System on a Chip (SoC.)

Either way, the use of last year's flagship processor shouldn't degrade the experience in any way. The Snapdragon 855 is still an excellent chip with great performance and efficiency.

It's important to remember that Surface Duo isn't about raw specs; it's about form factor. Most of the innovation coming out of Surface Duo is in the 360-degree hinge and dual-display setup. That said, for $1399, there's a lot of old tech in here that many people won't be able to justify.

If you are able to justify it, make sure you kit out your new Surface Duo with some accessories. Need some inspiration? Check out our best Surface Duo accessories roundup.

Preorders today!

Microsoft Surface Duo

Microsoft Surface Duo

Two screens are better than one.

Microsoft delves into the future of foldables with an ambitious dual-screen device, featuring two ultra-thin 5.6-inch AMOLED displays bound by a 360-degree hinge. This pocketable inking-enabled Android smartphone marks the latest in the Surface lineup, geared for mobile productivity.

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