Microsoft Surface Duo review: The future of smartphones is a work in progress

“Gloriously skinny and marvelously sensible, the Floor Duo rethinks the smartphone.”

  • Impossibly, splendidly skinny
  • Hinge is completely engineered
  • Sumptuous construct high quality
  • Sensible app-management device
  • Buggy device (nonetheless)
  • Design compromises
  • Steep studying curve

Amongst technocrats, a undeniable crowd flatly dismisses hardware from Microsoft, turning a blind eye to the fairly a success Floor line of goods, ignoring the Xbox platform, skipping many years of innovation in keyboards and mice. Those other people level to the Home windows Telephone’s failure with a figuring out wink, lean in shut, and smugly say, “Take into accout the Zune?”

Sure, all of us have in mind the Zune. And Clippy. Sigh.

This identical crowd penciled the Floor Duo onto the listing of flops out of the gate, noting that its hardware merely doesn’t compete. There’s a lot more to this new tool than megahertz and microchips, alternatively. With the Duo, Microsoft desires to reconsider what you do with the 7 or eight oz. of steel and glass you raise all over the place like a bible, simply as the primary iPhone grew to become transportable handsets into smartphones we will’t prevent fidgeting with. However does it be successful?


Let’s get this out of the best way. It’s simple to have a look at a spec sheet for the Floor Duo and spot a sequence of compromises. Positive, it’s skinny, however the place’s the wi-fi charging or 5G? Positive, it’s a lot less expensive than different foldables, however you lose out at the quickest chipset in the marketplace.

Suppose as a substitute about design choices. Smartphone makers have for years battled physics and Moore’s Regulation to shave a 10th of a millimeter off their telephones and, on the identical time, upload an additional short time of communicate time. Those choices are supposed to squeeze as a lot tech goodness as imaginable into a tool about 7mm thick and round 6 inches lengthy.

The newest instance of that is the Samsung Galaxy S20 Extremely 5G, a phenomenal hunk of glass 6.five inches lengthy and eight.8mm skinny. Examine it to the telephone Samsung launched in 2019, the Galaxy S10 Plus — a phenomenal hunk of glass 6.four inches lengthy and seven.8mm skinny.

Jeremy Kaplan/Virtual Traits

Microsoft’s Duo is other. Each and every display screen is four.8mm skinny, a bit of extra part the scale of that new Galaxy. Part the scale! Folded up, it’s nine.nine mm, simply over a millimeter thicker. It’s on the subject of the thickness of a magazine, which is solely exceptional.

If the typical smartphone is concerning the thickness of a PB&J, striking two of them in combination – as do different foldables such because the Galaxy Z Fold 2 or the LG V60 ThinQ – is like development a hoagie. And I’m no longer within the dependancy of sticking submarine sandwiches in my wallet.

Right here’s the place the “design choices” are available. Microsoft’s engineers sought after a tool so skinny it’ll have you ever gasping, a call that drove the hardware and formed the tool. It way wi-fi charging used to be not possible to slot in. And 5G chipsets and the multitude of antennas that thread throughout the innards of maximum telephones like your circulatory machine merely wouldn’t paintings. That’s why Qualcomm’s newest Snapdragon 865 chip is lacking. NFC calls for but some other additional antenna, so it used to be left off as smartly, and with it the facility to faucet to pay at a grocery retailer or subway turnstile. And an unusual battery is simply too thick to suit this tool. Extra on that during a 2d.

So sure, there’s a explanation why the Duo lacks a host of options not unusual to different telephones. It’s nonetheless roughly a compromise, even though, despite the fact that you realize why they have been not noted.

Show high quality and hinge sturdiness

A couple of five.6-inch AMOLED presentations make up the Floor Duo, every with a answer of 1800 × 1350 at 401 pixels in step with inch. Microsoft’s advertising workforce calls them “PixelSense Fusion” presentations for some explanation why. In combination, they shape an eight.1-inch pill with a answer of 2700 × 1800. The Duo is pushing round about five million pixels, in different phrases, which turns out like so much for a tool with a small battery. Battery existence is however respectable, a undeniable fact that speaks to numerous hours of engineering paintings.

Lined by way of Corning’s Gorilla Glass, the displays are deep and darkish, with crisp distinction. Staring at Carfection’s 2020 Mini JCW GP evaluate, colours leapt off the display screen — a bit of hotter than herbal, however fairly pleasurable to my eyes. And it’s sharp as a tack, because of all of the ones pixels.

A continual torque machine means that you can fold the tool 360 levels into any place, however there are truly 4 you’ll lean into: Flat as a pill, folded like a ebook, utterly open or closed, and propped up like a tent. It’s this final person who’s helpful when staring at movies. I in finding myself propping the Duo up subsequent to my pc and popping on tune movies or John Oliver. It’s freeing.

Jeremy Kaplan/Virtual Traits

There’s additionally a different mode. Open it only a crack, and also you’ll see that it displays you the time and date. This turns out a bit of foolish. When you’re elevating your arm, can’t you simply look at your watch? Oh, that’s proper — we’ve deserted watches in want of the extra handy smartphones, after which taken away a few of that comfort. Hmm.

Anyway, you’ll prevent the tool at any level in the ones 360 levels, which means you’ll make the tent brief and squat for those who’re a taller particular person, or extra acute in case your tabletop is at eye degree. Irrespective of place, the hinge is responsive, clean, and albeit roughly a laugh to make use of. It holds each place tenaciously as smartly; this pill gained’t flop in part on you. Sturdy? You guess.

I in finding myself the usage of the Duo with each arms like a ebook maximum continuously. Propped open in my proper hand, I open apps and take a look at electronic mail with my left. But when there’s one thing to dig into, I’ll fold the tool again on itself and accomplish that on a unmarried display screen. Notice that this nonetheless calls for two arms, a large trade from just about each different telephone you’ve used.

With unusual telephones, you’ll hang a subway strap for your left and skim a Kindle ebook for your proper. The Duo is so large that I will’t achieve my thumb throughout it, and I will slightly hit maximum icons on the backside of display screen. Held in a single hand, my thumb hits the middle of the display screen. Fail to remember attaining for a menu.

The use of the Floor Duo

There’s no escaping the truth that the Duo is heavy. To start with blush, I known as it gentle. I used to be shocked that two displays wouldn’t weigh extra. But when I’m being truthful with myself, each telephone I’ve carried within the final 3 years has develop into incrementally heavier; we’ve all simply neglected it, stuck up within the race for quicker and more recent. So I’ll say it right here. At 250 grams, the Duo is heavy. Android Authority known as the 220-gram Galaxy S20 Extremely “too rattling heavy.” At greater than part a pound, that is worse. I’m wondering what they’ll say concerning the Galaxy Z Fold 2, which can weigh you down like a brick at about 280 grams.

Nonetheless, I’m prepared to appear previous the load if you’ll get extra performed with it. And you’ll! It’ll simply take some paintings.

Right here’s the object: This tool is maddeningly acquainted, but doesn’t fairly paintings like different smartphones do. Imagine that the Duo is the primary tool I’ve ever noticed that’s acutely aware of the way you’re preserving it, because of a sequence of sensors that line the sides of the person displays.

Jeremy Kaplan/Virtual Traits

Thank you to those accelerometers, gyroscopes, and magnetometers, it is aware of whilst you’re preserving it like a ebook, and responds correctly whilst you’ve tented it subsequent in your dinner plate. (Caveat emptor: The audio system are on a unmarried facet of the show, so tent it as it should be otherwise you’ll pump soundtrack at your dinner mate. They gained’t feel free.)

Unusual gestures are kind of the similar, excluding there are a number of new ones you’ll have to be informed. A swipe up and to the left or proper is other right here. For some telephones, that’ll come up with a menu of new apps; right here, you’ll use that motion to near an app, flinging it into the oblivion off-screen.

Likewise, you’ll transfer a window from one display screen to the opposite by way of dragging up from the ground and flinging it around the divide, an motion that’s utterly spell binding. I may do all of it day. Pull down from the very most sensible of the display screen for the usual settings menu; do it from ¾ of the best way down for a seek bar.

Main points like this muddle the interface, appearing the eye to element Microsoft lavished in this tool. Imagine the road of quick-launch icons that stretches around the backside of each displays. Open an app on one display screen and the six icons skitter and dance over to the opposite facet, the place they nestle snugly subsequent to one another to slot in. It’s fascinating.

Button-wise, there’s little to the Duo: The precise display screen has a quantity rocker, an influence button, and a biometric reader in a dent that sits proper underneath your thumb. I frightened about this needlessly. It really works smartly. It additionally offers all the Duo a bit of vibration whilst you select it up, because the tool notices you and hints that it’s raring to move. I love this. It’s type of just like the rumble of a motor longing for the throttle.


The Duo runs Android 10, with a bit of sprinkling of Microsoft thrown in. To capitalize on the actual property, Microsoft labored intently with Google’s workforce of device engineers to create particular options only for a tool like this, with two displays: A brand new icon sort teams a couple of apps and launches them concurrently facet by way of facet, one in step with display screen. This turns out immensely robust.

Likewise, Microsoft constructed drag-and-drop capability into a few of its apps, letting you, say, spotlight a couple of sentences from an electronic mail in Outlook and drag it into Duties, the place it turns into your day’s schedule.

The large function is dual-screen toughen: Extend an app to fill each displays by way of dragging it from the ground to the hinge. Outlook has been redesigned to turn an inventory of emails at left and a studying pane at proper. It’s roughly a game-changer; assume for a 2d about how continuously you press the again button to your telephone to go back to what you have been doing.

Microsoft constructed a wise keyboard for this tool into SwiftKey, which is able to switch between single-thumb, dual-thumb, and full-screen modes. Because of all of the ones sensors, it is aware of whether or not the left display screen or proper display screen is lively, and can shift to deal with simplest that thumb. In full-screen, it may be difficult to achieve the entire approach to the middle of the keyboard, however it’s neat to carry the Duo like a bit of pc however. I in finding myself swiping extra continuously than no longer.

Jeremy Kaplan/Virtual Traits

In spite of everything, the corporate constructed a main directive into the Duo: Use the displays properly. Apps that release others will well accomplish that on the second one display screen, letting you proceed doing what you have been doing. The All Trails app will release Google Maps on the second one display screen; information apps can name particular person web site apps around the display screen.

I gloss over those engineering efforts simplest as a result of they’re few and a long way between: Microsoft has constructed toughen for drag-and-drop into one or two apps, together with OneNote, which I’ve by no means discovered a truly compelling use for. And virtually no apps are designed to well use each displays, although it’s been a yr since Microsoft started speaking about this tool. Positive, they are able to invent this new UI, however it’s as much as others to make hay with it. Google has had never-ending issues getting builders to make apps to suit massive displays, as has Samsung; Microsoft has struggled prior to now getting builders to toughen its latest tasks as smartly. There’s a possibility Instagram, Tik Tok, Adobe, and whoever else merely refuses to do the paintings, hindering the Duo dramatically.

Talking of doing the paintings, that is obviously a piece in growth. Once I and a host of alternative reporters complained about distracting system defects within the device, Microsoft driven out a weekend replace that progressed the digicam, lowered jerkiness in scrolling, mounted some quirky conduct, and extra.

However it’s nonetheless no longer fairly there, which is exasperating. Each and every from time to time, I open the Duo and no displays come on, somewhat than each. Or I be expecting an app at the left and it’s at the proper. Or I rotate the tool and the app stubbornly refuses to depart portrait mode. Those system defects are exhausting to forgive. Those fundamentals wish to paintings each unmarried time … or Microsoft will see a go back charge upper than the nationwide debt.


Out of doors of smartphone reviewers, few other people use the ridiculously complex options which might be baked into nowadays’s smartphone like sudden extras in a cookie. Spinach and chocolate chip? No thanks. Butterscotch and baked beans? Why would you even be offering that? Through skipping those undesirable options, Microsoft stored cash and have shyed away from the raised welt that scars the backs of maximum flagship telephones.

It should be stated, the corporate additionally lower corners.

The Duo features a unmarried digicam: An 11-megapixel sensor with a elementary f/ aperture, very small pixels, and no OIS (optical symbol stabilization). It’s housed atop the precise panel, in a position for a selfie if you want. There’s 4K 60 fps video, slow-motion video toughen, landscape and portrait modes, and virtual zoom as much as 7x. However it’s elementary stuff, and no longer all of it really works smartly.

Jeremy Kaplan/Virtual Traits

The autofocus in this digicam is … no longer excellent, let’s simply pop out and say it. I noticed some bees humming round my Rose of Jericho shrubs, and after announcing a silent prayer for them (somebody has to, in the end), I leaned in for a snap, pressed the button, and watched the bees whiz off ahead of the digicam took a shot. It took me a couple of tries ahead of I realized to time my photographs as it should be.

And whilst colours are respectable, your footage won’t ever fit the wonderful photographs taken by way of the most efficient digicam telephones in the market, such because the Huawei P40 Professional and the iPhone 11 Professional. That stated, it does do a little neat tips: Stir up the digicam, rotate the precise panel (the only with the lens) again, and the digicam app routinely flips onto the proper panel to will let you take an image of no matter you’re having a look at. Rotate it again and also you’re in a position for selfies. Extend the app to fill each panels and you’ll see your photograph library on one facet and the reside symbol at the different, making it simple to check all the ones self-portraits.

90-five p.c of other people will in finding the digicam best for 95% of the footage they wish to take. Maximum of them could be happier with a digicam as robust as that discovered within the Google Pixel 4a, which prices actually $1,000 lower than the ones fancy telephones I discussed previous. Nobody viewing your footage will ever know that your photographs can have been a tiny bit higher. Extra vital, nobody will care.


As you’ve most likely heard, the Floor Duo runs final yr’s Qualcomm Snapdragon 855 platform, the similar chip featured in 2019’s Galaxy S10 telephones, somewhat than 2020’s Galaxy S20. The similar processor as in 2019’s OnePlus 7 Professional, somewhat than 2020’s OnePlus eight. The similar … smartly, you get the image. It’s additionally were given 6GB of DRAM and 128GB or 256GB of garage, relying on what quantity of money you need to drop.

However is any of that truly vital? The benchmarks unquestionably inform one tale: We ran the preferred 3-d Mark suite of benchmarks, and noticed ends up in line with final yr’s chips:

3-d Mark Sling Shot Excessive: five,745 (OpenGL)

3-d Mark Sling Shot Excessive: five,055 (Vulkan)

Geekbench five CPU: 735 unmarried core, 2,768 multi-core

However numbers are numbers; real-world efficiency is one thing else. Throughout a number of days and a host of apps, I by no means felt efficiency used to be in any respect subpar. When you’ve purchased a pc in the previous few years, you’ll know what I imply: For the majority of what you do, it’s most definitely excellent sufficient, isn’t it? Positive, a brand new one may well be quicker, however for surfing the internet and checking your electronic mail, it’s precisely excellent sufficient.

Battery existence

The Duo is an engineering surprise for quite a few causes. One is the three,577mAh battery, which is divided throughout two other aspects of the tool. Particular controllers make sure that the 2 aspects run and put on lightly, Microsoft says. Wonderful! You’ll by no means understand it, however I in finding little details like that merely interesting.

Jeremy Kaplan/Virtual Traits

The corporate claims you’ll be capable to rise up to 27 hours of communicate time, however let’s be truthful: Who desires to spend that a lot time chatting? In my trying out, with heavy internet surfing, electronic mail use, and leaning into movies, I used to be in a position to stretch the battery over all the day with out a subject. The field comprises an 18-watt fast-charger, which perceived to do the trick.

Our take

The Floor Duo is putting, functionally unique, and dear as all get-out. Having two displays turns out like a novelty, however I did in finding myself higher in a position to paintings with two displays that kind of paintings in tandem. With my calendar up on one facet and electronic mail at the different, I will see my day at a look. With my inbox at left and a answer message at proper, my telephone is unexpectedly a long way, a long way higher at electronic mail. And propping it as much as watch a video is simply extremely gratifying.

That the device nonetheless wishes paintings is regarding, alternatively. How lengthy will it take to shine up? And can builders include this ordinary new tool? We’re left with lingering questions.

Is there a greater selection?

The most obvious possible choices are foldable display screen gadgets just like the Samsung Galaxy Z Fold 2 and the LG V60 ThinQ. The Duo makes them appear foolish. The ones issues are merely monumental, and in relation to the Galaxy Z Fold 2, loads of bucks extra. And anything else with 5G may well be a wiser purchase, given the huge, international push to expand the brand new networking generation. Microsoft gained’t be capable to merely “upload it in.” It’s both there or it isn’t, and two years from now, the absence of 5G will develop in significance, simply as poison ivy develops days after you contact that beautiful plant.

How lengthy will it final?

The bodily shortcoming of a tool like this will have to be the hinge, however this one feels designed to final via nuclear battle. The device may well be its Achilles’ heel, alternatively: Builders will have to get started supporting the options Microsoft has constructed, since they’re going to be extensively supported in long term Android builds. However will they?

Must you purchase it?

Are you the type of one that buys model one in all anything else? Who likes dazzling pals with the most recent hotness? Then, certain, snatch the Duo and provoke the sector. Everybody else will have to wait a couple of weeks to make sure that Microsoft can paintings the kinks out of the device, and inspire Twitter, Fb, Zoom, and the sector’s sport makers to toughen this platform. And they’re going to … most definitely.

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