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

Impossibly, splendidly skinny

Hinge is completely engineered

Luxurious construct high quality

Sensible app-management software program

Buggy software program (nonetheless)

Design compromises

Steep studying curve

Amongst technocrats, a sure crowd flatly dismisses hardware from Microsoft, turning a blind eye to the fairly profitable Floor line of merchandise, ignoring the Xbox platform, skipping many years of innovation in keyboards and mice. These individuals level to the Home windows Telephone’s failure with a understanding wink, lean in shut, and smugly say, “Bear in mind the Zune?”

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

This identical crowd penciled the Floor Duo onto the record of flops out of the gate, noting that its hardware merely doesn’t compete. There’s way more to this new system than megahertz and microchips, nevertheless. With the Duo, Microsoft needs to rethink what you do with the 7 or eight ounces of steel and glass you carry all over the place like a bible, simply as the primary iPhone turned moveable handsets into smartphones we will’t cease fidgeting with. However does it succeed?


Let’s get this out of the way in which. It’s straightforward to take a look at a spec sheet for the Floor Duo and see a collection of compromises. Positive, it’s skinny, however the place’s the wi-fi charging or 5G? Positive, it’s less expensive than different foldables, however you lose out on the quickest chipset available on the market.

Suppose as an alternative about design selections. Smartphone makers have for years battled physics and Moore’s Legislation to shave a tenth of a millimeter off their telephones and, on the identical time, add an additional jiffy of discuss time. These selections are supposed to squeeze as a lot tech goodness as doable into a tool about 7mm thick and round 6 inches lengthy.

The newest instance of that is the Samsung Galaxy S20 Extremely 5G, an attractive hunk of glass 6.5 inches lengthy and eight.8mm skinny. Evaluate it to the cellphone Samsung launched in 2019, the Galaxy S10 Plus — an attractive hunk of glass 6.four inches lengthy and seven.8mm skinny.

Jeremy Kaplan/Digital Traits

Microsoft’s Duo is completely different. Every display is four.8mm skinny, a bit of extra half the dimensions of that new Galaxy. Half the dimensions! Folded up, it’s 9.9 mm, simply over a millimeter thicker. It’s simply in regards to the thickness of , which is solely outstanding.

If the typical smartphone is in regards to the thickness of a PB&J, placing two of them collectively – as do different foldables such because the Galaxy Z Fold 2 or the LG V60 ThinQ – is like constructing a hoagie. And I’m not within the behavior of sticking submarine sandwiches in my pockets.

Right here’s the place the “design selections” are available. Microsoft’s engineers wished a tool so skinny it’ll have you ever gasping, a choice that drove the hardware and formed the system. It means wi-fi charging was not possible to slot in. And 5G chipsets and the multitude of antennas that thread by way of the innards of most telephones like your circulatory system merely wouldn’t work. That’s why Qualcomm’s newest Snapdragon 865 chip is lacking. NFC requires yet one more additional antenna, so it was left off as effectively, and with it the flexibility to faucet to pay at a grocery retailer or subway turnstile. And an abnormal battery is just too thick to suit this system. Extra on that in a second.

So sure, there’s a cause the Duo lacks a bunch of options frequent to different telephones. It’s nonetheless type of a compromise, although, even when you realize why they had been unnoticed.

Show high quality and hinge sturdiness

A pair of 5.6-inch AMOLED shows make up the Floor Duo, every with a decision of 1800 × 1350 at 401 pixels per inch. Microsoft’s advertising group calls them “PixelSense Fusion” shows for some cause. Collectively, they type an eight.1-inch pill with a decision of 2700 × 1800. The Duo is pushing round about 5 million pixels, in different phrases, which looks as if lots for a tool with a small battery. Battery life is nonetheless respectable, a proven fact that speaks to numerous hours of engineering work.

Lined by Corning’s Gorilla Glass, the screens are deep and darkish, with crisp distinction. Watching Carfection’s 2020 Mini JCW GP overview, colours leapt off the display — a bit of hotter than pure, however fairly pleasing to my eyes. And it’s sharp as a tack, because of all of these pixels.

A steady torque system enables you to fold the system 360 levels into any place, however there are actually 4 you’ll lean into: Flat as a pill, folded like a e-book, utterly open or closed, and propped up like a tent. It’s this final one which’s helpful when watching movies. I discover myself propping the Duo up subsequent to my laptop computer and popping on music movies or John Oliver. It’s liberating.

Jeremy Kaplan/Digital Traits

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

Anyway, you’ll be able to cease the system at any level in these 360 levels, that means you can also make the tent quick and squat in the event you’re a taller particular person, or extra acute in case your tabletop is at eye stage. No matter place, the hinge is responsive, easy, and admittedly type of enjoyable to make use of. It holds each place tenaciously as effectively; this pill gained’t flop in half on you. Sturdy? You guess.

I discover myself utilizing the Duo with each arms like a e-book most frequently. Propped open in my proper hand, I open apps and test electronic mail with my left. But when there’s one thing to dig into, I’ll fold the system again on itself and achieve this on a single display. Observe that this nonetheless requires two arms, an enormous change from almost each different cellphone you’ve used.

With abnormal telephones, you’ll be able to maintain a subway strap in your left and browse a Kindle e-book in your proper. The Duo is so vast that I can’t attain my thumb throughout it, and I can barely hit most icons on the backside of display. Held in a single hand, my thumb hits the middle of the display. Neglect reaching for a menu.

Utilizing the Floor Duo

There’s no escaping the truth that the Duo is heavy. At first blush, I referred to as it mild. I used to be stunned that two screens wouldn’t weigh extra. But when I’m being sincere with myself, each cellphone I’ve carried within the final three years has develop into incrementally heavier; we’ve all simply ignored it, caught up within the race for sooner and newer. So I’ll say it right here. At 250 grams, the Duo is heavy. Android Authority referred to as the 220-gram Galaxy S20 Extremely “too rattling heavy.” At greater than half a pound, that is worse. I’m wondering what they’ll say in regards to the Galaxy Z Fold 2, which is able to weigh you down like a brick at about 280 grams.

Nonetheless, I’m prepared to look previous the burden if you will get extra performed with it. And you may! It’ll simply take some work.

Right here’s the factor: This system is maddeningly acquainted, but doesn’t fairly work like different smartphones do. Think about that the Duo is the primary system I’ve ever seen that’s conscious of the way you’re holding it, because of a collection of sensors that line the perimeters of the person screens.

Jeremy Kaplan/Digital Traits

Thanks to those accelerometers, gyroscopes, and magnetometers, it is aware of while you’re holding it like a e-book, and responds appropriately while you’ve tented it subsequent to your dinner plate. (Caveat emptor: The audio system are on a single aspect of the show, so tent it accurately otherwise you’ll pump soundtrack at your dinner mate. They gained’t be completely satisfied.)

Atypical gestures are roughly the identical, besides there are a number of new ones you’ll should be taught. A swipe up and to the left or proper is completely different right here. For some telephones, that’ll offer you a menu of latest apps; right here, you should utilize that motion to shut an app, flinging it into the oblivion off-screen.

Likewise, you’ll be able to transfer a window from one display to the opposite by dragging up from the underside and flinging it throughout the divide, an motion that’s completely mesmerizing. I might do all of it day. Pull down from the very prime of the display for the usual settings menu; do it from ¾ of the way in which down for a search bar.

Particulars like this litter the interface, displaying the eye to element Microsoft lavished on this system. Think about the road of quick-launch icons that stretches throughout the underside of each screens. Open an app on one display and the six icons skitter and dance over to the opposite aspect, the place they nestle snugly subsequent to one another to slot in. It’s charming.

Button-wise, there’s little to the Duo: The best display has a quantity rocker, an influence button, and a biometric reader in a dent that sits proper below your thumb. I anxious about this needlessly. It really works effectively. It additionally provides all the Duo a bit of vibration while you decide it up, because the system notices you and hints that it’s raring to go. I like this. It’s type of just like the rumble of a motor anticipating the throttle.

Software program

The Duo runs Android 10, with a bit of sprinkling of Microsoft thrown in. To capitalize on the true property, Microsoft labored carefully with Google’s group of software program engineers to create particular options only for a tool like this, with two screens: A brand new icon sort teams a pair of apps and launches them concurrently aspect by aspect, one per display. This appears immensely highly effective.

Likewise, Microsoft constructed drag-and-drop performance 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 agenda.

The massive characteristic is dual-screen help: Broaden an app to fill each screens by dragging it from the underside to the hinge. Outlook has been redesigned to indicate a listing of emails at left and a studying pane at proper. It’s type of a game-changer; assume for a second about how typically you press the again button in your cellphone to return to what you had been doing.

Microsoft constructed a sensible keyboard for this system into SwiftKey, which may swap between single-thumb, dual-thumb, and full-screen modes. Due to all of these sensors, it is aware of whether or not the left display or proper display is lively, and can shift to accommodate solely that thumb. In full-screen, it may be robust to achieve all the way in which to the middle of the keyboard, however it’s neat to carry the Duo like a bit of laptop computer nonetheless. I discover myself swiping as a rule.

Jeremy Kaplan/Digital Traits

Lastly, the corporate constructed a major directive into the Duo: Use the screens properly. Apps that launch others will neatly achieve this on the second display, letting you proceed doing what you had been doing. The All Trails app will launch Google Maps on the second display; information apps can name particular person website apps throughout the display.

I gloss over these engineering efforts solely as a result of they’re few and much between: Microsoft has constructed help for drag-and-drop into one or two apps, together with OneNote, which I’ve by no means discovered a very compelling use for. And nearly no apps are designed to neatly use each screens, even if it’s been a 12 months since Microsoft started speaking about this system. Positive, they’ll invent this new UI, however it’s as much as others to make hay with it. Google has had countless issues getting builders to make apps to suit massive screens, as has Samsung; Microsoft has struggled prior to now getting builders to help its latest initiatives as effectively. There’s a danger Instagram, Tik Tok, Adobe, and whoever else merely refuses to do the work, hindering the Duo dramatically.

Talking of doing the work, that is clearly a piece in progress. After I and a bunch of different journalists complained about distracting glitches within the software program, Microsoft pushed out a weekend replace that improved the digital camera, decreased jerkiness in scrolling, mounted some quirky conduct, and extra.

But it surely’s nonetheless not fairly there, which is irritating. Each every now and then, I open the Duo and no screens come on, relatively than each. Or I count on an app on the left and it’s on the fitting. Or I rotate the system and the app stubbornly refuses to go away portrait mode. These glitches are laborious to forgive. These fundamentals have to work each single time … or Microsoft will see a return price larger than the nationwide debt.


Exterior of smartphone reviewers, few individuals use the ridiculously superior options which are baked into right now’s smartphone like surprising extras in a cookie. Spinach and chocolate chip? No thanks. Butterscotch and baked beans? Why would you even supply that? By skipping these undesirable options, Microsoft saved cash and prevented the raised welt that scars the backs of most flagship telephones.

It have to be mentioned, the corporate additionally lower corners.

The Duo features a single digital camera: An 11-megapixel sensor with a primary f/2.zero aperture, very small pixels, and no OIS (optical picture stabilization). It’s housed atop the fitting panel, prepared for a selfie if you want. There’s 4K 60 fps video, slow-motion video help, panorama and portrait modes, and digital zoom as much as 7x. But it surely’s primary stuff, and never all of it really works effectively.

Jeremy Kaplan/Digital Traits

The autofocus on this digital camera is … not good, let’s simply come out and say it. I noticed some bees buzzing round my Rose of Jericho shrubs, and after saying a silent prayer for them (somebody has to, in any case), I leaned in for a snap, pressed the button, and watched the bees whiz off earlier than the digital camera took a shot. It took me a couple of tries earlier than I discovered to time my photographs accurately.

And whereas colours are respectable, your images won’t ever match the wonderful photographs taken by the most effective digital camera telephones on the market, such because the Huawei P40 Professional and the iPhone 11 Professional. That mentioned, it does do some neat tips: Fireplace up the digital camera, rotate the fitting panel (the one with the lens) again, and the digital camera app mechanically flips onto the proper panel to allow you to take an image of no matter you’re . Rotate it again and also you’re prepared for selfies. Broaden the app to fill each panels and you may see your photograph library on one aspect and the stay picture on the opposite, making it straightforward to overview all these self-portraits.

Ninety-five % of individuals will discover the digital camera excellent for 95% of the images they wish to take. Most of them can be happier with a digital camera as highly effective as that discovered within the Google Pixel 4a, which prices actually $1,000 lower than these fancy telephones I discussed earlier. Nobody viewing your images will ever know that your pictures might have been a tiny bit higher. Extra necessary, nobody will care.


As you’ve probably heard, the Floor Duo runs final 12 months’s Qualcomm Snapdragon 855 platform, the identical chip featured in 2019’s Galaxy S10 telephones, relatively than 2020’s Galaxy S20. The identical processor as in 2019’s OnePlus 7 Professional, relatively than 2020’s OnePlus eight. The identical … effectively, you get the image. It’s additionally acquired 6GB of DRAM and 128GB or 256GB of storage, relying on how a lot cash you wish to drop.

However is any of that basically necessary? The benchmarks definitely inform one story: We ran the favored 3D Mark suite of benchmarks, and noticed outcomes consistent with final 12 months’s chips:

3D Mark Sling Shot Excessive: 5,745 (OpenGL)

3D Mark Sling Shot Excessive: 5,055 (Vulkan)

Geekbench 5 CPU: 735 single core, 2,768 multi-core

However numbers are numbers; real-world efficiency is one thing else. Throughout a number of days and a bunch of apps, I by no means felt efficiency was in anyway subpar. In case you’ve purchased a laptop computer in the previous couple of years, you’ll know what I imply: For the majority of what you do, it’s most likely ok, isn’t it? Positive, a brand new one is likely to be sooner, however for shopping the net and checking your electronic mail, it’s precisely ok.

Battery life

The Duo is an engineering marvel for quite a lot of causes. One is the three,577mAh battery, which is cut up throughout two completely different sides of the system. Particular controllers guarantee the 2 sides run and put on evenly, Microsoft says. Wonderful! You’ll by no means discover it, however I discover little details like that merely fascinating.

Jeremy Kaplan/Digital Traits

The corporate claims you’ll be capable of stand up to 27 hours of discuss time, however let’s be sincere: Who needs to spend that a lot time chatting? In my testing, with heavy internet shopping, electronic mail use, and leaning into movies, I used to be capable of stretch the battery over all the day with out a problem. The field incorporates an 18-watt fast-charger, which appeared to do the trick.

Our take

The Floor Duo is placing, functionally distinctive, and costly as all get-out. Having two screens looks as if a novelty, however I did discover myself higher capable of work with two screens that roughly work in tandem. With my calendar up on one aspect and electronic mail on the opposite, I can see my day at a look. With my inbox at left and a reply message at proper, my cellphone is all of the sudden far, much better at electronic mail. And propping it as much as watch a video is simply extremely satisfying.

That the software program nonetheless wants work is regarding, nevertheless. How lengthy will it take to shine up? And can builders embrace this unusual new system? We’re left with lingering questions.

Is there a greater various?

The apparent alternate options are foldable display units just like the Samsung Galaxy Z Fold 2 and the LG V60 ThinQ. The Duo makes them appear foolish. These issues are merely monumental, and within the case of the Galaxy Z Fold 2, tons of of extra. And something with 5G is likely to be a better purchase, given the huge, worldwide push to develop the brand new networking know-how. Microsoft gained’t be capable of merely “add 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 fairly plant.

How lengthy will it final?

The bodily shortcoming of a tool like this needs to be the hinge, however this one feels designed to final by way of nuclear conflict. The software program is likely to be its Achilles’ heel, nevertheless: Builders ought to begin supporting the options Microsoft has constructed, since they are going to be broadly supported in future Android builds. However will they?

Must you purchase it?

Are you the type of one who buys model one in all something? Who likes dazzling associates with the latest hotness? Then, positive, seize the Duo and impress the world. Everybody else ought to wait a couple of weeks to make sure that Microsoft can work the kinks out of the software program, and encourage Twitter, Fb, Zoom, and the world’s sport makers to help this platform. And they’re going to … most likely.

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