The Romo P is DJI’s first foray into the world of floor-cleaning, and the company's years of expertise in navigation and obstacle-detection have translated flawlessly from the sky to your floor.
The most important aspect of a robot vacuum, though, is its cleaning ability, and in our tests the Romo P more than holds its own against established leaders like Roborock and Dreame — read our in-depth DJI Romo P review for more. It’s a hugely impressive package all-round, and my choice for Home Device of the Year in TechRadar's Product of the Year Awards 2026.
DJI’s drones have offered autonomous navigation since 2016, and it's that expertise that gives the Romo P the edge when it comes to pathfinding. It combines dual fisheye cameras with LiDAR to detect objects as small as 2mm thick (that's less than an eighth of an inch), so there’s no need to worry about cables or shoelaces getting wrapped around the brushroll.
The Romo P packs serious cleaning power inside its space-age chassis too, tackling dirt, dust and pet hair across all floor types. With 25,000Pa suction and extendable cleaning brushes, it’s particularly well suited to wood, tiles and other hard surfaces, and it’s no slouch on carpet either, easily keeping up with rival robovacs.
(Image credit: Future)
Wet cleaning is especially impressive; the Romo P’s dual mop heads are noticeably more plush and absorbent than those of other robovacs we’ve tested, and the right-hand head articulates out slightly to clean all the way to the edge of furniture and baseboards without leaving dust lines (a common issue with round robovacs). When it needs to move onto carpet, the mop heads raise automatically to keep the floor dry.
Once the Romo P has finished cleaning, its automated charging and self-cleaning dock takes over. This surprisingly compact unit sucks dirt from the romovac’s bin into a sealed dust bag to keep dirt and allergens safely contained, then washes the mop pads and dries them to prevent mold and odors. The process is so effective that you might only need to intervene a few times a year.
The Romo P is controlled via DJI’s Home app, which lets you customize its automated functions to suit your floors and lifestyle. For example, you can set up custom cleaning schedules, and adjust the Romo P’s suction and mopping-water levels on a room-by-room basis. Like any good robovac app, DJI Home also allows you to set no-go zones, and monitor cleaning progress in real time.
(Image credit: Future)
That’s not all — the app also gives you a ground-level view of your room via the robot’s two fish-eye camera lenses, so you can, for example, check on your pets while you’re away. There's full voice control too.
The Romo P is even a cut above other robot vacuums when it comes to aesthetics, with its transparent top panel and matching see-through dock letting you see exactly what’s happening while the duo keep your home spotless with little-and-often cleaning. They’re a far cry from the usual black or white pucks and chunky docks of most robovacs.
DJI has launched itself into your home in style, with a robot vacuum that can literally run rings around its competitors, and its Romo P is a thoroughly worthy winner of our Home Device of the Year award.
The iPhone Duo is a phone-and-tablet all-in-one, offering an extra screen at a much higher price than the iPhone 18 Pro. It also loses some key Pro features.
Pros
Excellent design
Two screens
Stylus support
Cons
Very expensive
Worse cameras
No Face ID
Apple
iPhone 18 Pro
The iPhone 18 Pro is a much cheaper phone than the iPhone Duo, with better cameras to boot. But its single screen makes it far less versatile.
Pros
Superb cameras
Much lower price
Has Face ID
Cons
Just one screen
No stylus support
Smaller battery
The iPhone Duo has been a long time coming, but is Apple’s first foldable a home run? And even if it is, do you even really need a dual-screen device?
Those are questions you might be asking yourself if you're in the market for a new iPhone — especially when the iPhone 18 Pro is also available, which only has one display but is a better device in various other ways.
So, to help you decide which of these two models is best for you, we’ve compared the iPhone Duo and iPhone 18 Pro across various categories, including price, display, and design. Happy decision-making!
iPhone Duo vs iPhone 18 Pro: specs comparison
Before we look in depth at the key elements of the iPhone Duo and iPhone 18 Pro, the specs table below provides an overview of their similarities and differences.
iPhone Duo
iPhone 18 Pro
Dimensions:
117.8 x 84.1 x 11.3mm (folded) / 117.8 x 164.6 x 5.2mm (unfolded)
150 x 71.9 x 8.8mm
Weight:
254g
211g
Display:
7.6-inch Super Retina XDR OLED (foldable) / 5.4-inch Super Retina XDR OLED (cover)
6.3-inch Super Retina XDR OLED
Refresh rate:
1Hz–120Hz
1Hz–120Hz
Peak brightness:
3,000 nits
3,000 nits
Chipset:
A20 Pro
A20 Pro
RAM:
12GB
12GB
Rear cameras:
48MP main, 48MP ultra-wide
48MP main, 48MP ultra-wide, 48MP telephoto
Front camera:
12MP cover, 4MP under-display
18MP
Battery:
4,883mAh
4,288mAh (eSIM-only) / 4,056mAh (physical SIM)
Charging:
50% in 20 minutes
50% in 15 minutes
Storage:
256GB / 512GB / 1TB / 2TB
256GB / 512GB / 1TB / 2TB
iPhone Duo vs iPhone 18 Pro: price and availability
The iPhone DuoLance Ulanoff / FutureThe iPhone 18 ProFuture/Jacob Krol
The iPhone Duo and iPhone 18 Pro were both announced in September 2026. But while the iPhone 18 Pro shipped shortly after its announcement, the iPhone Duo wasn’t available until October 23. Both phones are available now, though, across much of the world.
The iPhone Duo starts at $1,999 / £1,999 / AU$3,499, for which you’ll get 256GB of storage. There’s also a 512GB model for $2,199 / £2,199 / AU$3,899, a 1TB version for $2,599 / £2,599 / AU$4,699, and a 2TB model for $3,199 / £3,199 / AU$5,899.
The iPhone 18 Pro is a lot more affordable (relatively speaking), while still being expensive. This device starts at $1,199 / £1,199 / AU$2,099 for 256GB of storage, rising to $1,399 / £1,399 / AU$2,499 for 512GB, $1,799 / £1,799 / AU$3,299 for 1TB, and $2,399 / £2,399 / AU$4,499 for 2TB.
So, the iPhone Duo’s starting price is some $800 / £800 / AU$1,400 higher than the iPhone 18 Pro's; that difference is the price of a high-end phone (or indeed the new iPad mini) all on its own. So while you’re essentially getting a phone and tablet all in one with the Duo, you’re also paying handsomely for that privilege.
Apple iPhone Duo pricing
Storage
US price
UK price
AU price
256GB
$1,999.99
£1,999
AU$3,499
512GB
$2,199
£2,199
AU$3,899
1TB
$2,599
£2,599
AU$4,699
2TB
$3,199
£3,199
AU$5,899
Apple iPhone 18 Pro pricing
Storage
US price
UK price
AU price
256GB
$1,199
£1,199
AU$2,099
512GB
$1,399
£1,399
AU$2,499
1TB
$1,799
£1,799
AU$3,299
2TB
$2,399
£2,399
AU$4,499
iPhone Duo vs iPhone 18 Pro: design
The iPhone DuoLance Ulanoff / FutureThe iPhone 18 ProFuture/Jacob Krol
The iPhone Duo doesn’t really look like any other iPhone, and not just because it folds. When folded shut, you might expect it to look like the iPhone 18 Pro, but you’d be wrong, as it has a much shorter, passport-shaped footprint, coming in at 117.8 x 84.1 x 11.3mm compared to the iPhone 18 Pro’s 150 x 71.9 x 8.8.mm size.
Of course, the iPhone Duo is substantially larger when unfolded, opening out to 117.8 x 164.6 x 5.2mm (we'll touch on their displays in the next section).
Other differences include the phones' respective camera arrangements. The iPhone Duo has a punch-hole camera in the top right corner of its cover display, and an under-screen camera in its foldable display. The iPhone 18 Pro, meanwhile, has a much larger cut-out for its Dynamic Island, but this larger opening also allows for Face ID, which the iPhone Duo lacks.
On the back, the iPhone Duo has a horizontally arranged dual-lens camera, while the iPhone 18 Pro has a larger triple-lens camera block (which Apple describes as the 'camera plateau').
The Duo is also unsurprisingly heavier at 254g to the iPhone 18 Pro’s 211g, and their colors differ, with the iPhone Duo being sold in Night Sky and Star White shades, while the iPhone 18 Pro is available in Black, Silver, Glacier, and Burgundy options.
The iPhone Duo (folded) and iPhone 18 ProFutureThe iPhone Duo (unfolded) and iPhone 18 ProFuture
Their materials differ a bit too, with the iPhone Duo having a titanium frame and a glass back (not unlike the iPhone Air), while the iPhone 18 Pro has an aluminum frame and uses a mix of metal and glass on the back.
However, both phones have an IP68 rating for dust and water resistance, and both use Ceramic Shield 2 on the front and Ceramic Shield on the back — so they should be similarly durable, aside from the inherent fragility that comes with a second screen and a hinge mechanism (Apple has confirmed to TechRadar that the Duo's viral screen-cracking issue only affected a "small number of units" at launch, so you shouldn't worry about experiencing that level of vulnerability).
Ultimately, we praised the designs of both these phones, with our iPhone Duo review describing it as “beautifully designed and engineered,” while our iPhone 18 Pro review highlighted its “fantastic” new shades.
There's certainly a learning curve to be experienced with the iPhone Duo's folding form factor — its volume buttons, for instance, are positioned on the top, not the side — while the iPhone 18 Pro feels extremely familiar in the hand. But we'd urge you to try the Duo out for yourself in a store before dismissing its design as a reason not to buy it.
In essence, both of these devices are a treat to use.
iPhone Duo vs iPhone 18 Pro: display
(Image credit: Future)
If you’re considering the iPhone Duo, then its screen is probably the most important factor for you, since it has two of them. The Duo's main display is a 7.6-inch 1878 x 2670 foldable LTPO Super Retina XDR OLED panel, with a 120Hz refresh rate, 430 pixels per inch, and a peak brightness of 3,000 nits.
The aspect ratio of this inner display is a content-friendly 1.4:1, giving you room to run two full apps side-by-side, play games on a larger canvas, or watch wide-format media (note, though, that most YouTube and Netflix content is still displayed in 16:9).
Crucially, this inner screen also features a nano-texture coating to reduce glare and make the Duo's crease appear invisible face-on. Sure, you can see this crease when looking at an angle, but nano-texture really does work for making you forget about the crease during general use.
Being a foldable phone, the iPhone Duo also has a 5.4-inch 1398 x 2034 LTPO Super Retina XDR OLED cover screen, which likewise has a 120Hz refresh rate, a peak brightness of 3,000 nits, and around 460 pixels per inch.
The iPhone DuoLance Ulanoff / FutureThe iPhone 18 ProFuture/Jacob Krol
The iPhone 18 Pro just has one screen, but it’s a good one. It's a 6.3-inch 1206 x 2622 LTPO Super Retina XDR OLED panel with a 120Hz refresh rate, a peak brightness of 3,000 nits, and around 460 pixels per inch.
On paper, then, the iPhone Duo’s screen specs are very similar to those of the iPhone 18 Pro — except you get both a bigger and a smaller screen here than the Pro’s mid-size display. But the Duo has an extra trick up its sleeve, as its foldable screen also supports the Apple Pencil, which the iPhone 18 Pro doesn’t.
As far as screen quality goes, though, there’s not much to choose between these two devices, with our iPhone Duo review praising its “bright, sharp, fluid screens” along with a surprisingly well-hidden crease, and our iPhone 18 Pro review calling its display “punchy, sharp, and smooth.”
iPhone Duo vs iPhone 18 Pro: cameras
The iPhone DuoLance Ulanoff / FutureThe iPhone 18 ProFuture/Jacob Krol
While the iPhone Duo arguably has the edge where screens are concerned, it’s the iPhone 18 Pro that takes the win for photography.
The Duo has two rear cameras: a 48MP f/1.6 wide snapper and a 48MP f/2.2 ultra-wide with a 120-degree field of view. It also has a decent 12MP f/2.2 camera on the cover screen, and a paltry 4MP f/1.8 under-display camera on the foldable screen.
The iPhone 18 Pro, on the other hand, has a triple-lens camera setup on the back, with the same ultra-wide snapper as the Duo, but a superior 48MP variable aperture wide camera that can move between f/1.5 and f/4.0. It also has a 48MP f/2.8 telephoto camera capable of 4x optical zoom.
The selfie camera on the iPhone 18 Pro is also slightly higher spec than that of the Duo, being an 18MP f/1.9 one.
So, if you buy the Duo, you’ll be getting a less versatile wide camera and no telephoto camera, along with fewer megapixels for its front-facing cameras.
Of course, the Duo is far from a bad camera phone, with our review praising its “two strong 48MP lenses and an above-average Center Stage selfie camera.” You can absolutely take great shots with either of these phones.
But when it comes to photography, Apple's first foldable is simply no match for the iPhone 18 Pro, which we summed up as offering “better detail” than its predecessor, along with “strong low-light performance, and excellent 4x and 8x zoom.”
The iPhone 18 Pro is one of the best camera phones you can buy; the Duo is good, but not great.
iPhone Duo vs iPhone 18 Pro: performance and software
The iPhone DuoLance Ulanoff / FutureThe iPhone 18 ProFuture/Jacob Krol
The iPhone Duo and iPhone 18 Pro should offer comparable performance, as both phones have an A20 Pro chipset, 12GB of RAM, and a vapor chamber.
That’s a capable combination, with our iPhone Duo review mentioning “smooth performance across the board,” while our iPhone 18 Pro review highlighted that it’s “fast, efficient, and ready for whatever comes next.”
Obviously, the iPhone Duo may be a more enjoyable phone to play mobile games on (given its larger inner screen), but it's not an inherently better or more powerful gaming phone than the iPhone 18 Pro.
The same applies to productivity, since you can split the Duo's display in two by swiping up from the bottom and slowly dragging an app left or right. For obvious reasons, you can't do any such multitasking magic on the iPhone 18 Pro.
The software on both phones is similar, with the iPhone Duo running iOS 27.1 out of the box and the iPhone 18 Pro running iOS 27. At the time of writing, both phones can be updated to iOS 27.2, and it’s likely they’ll be supported for the same amount of time.
There are, however, some software differences to be aware of, with Apple taking advantage of the Duo's dual-screen nature to add and change some features.
(Image credit: Lance Ulanoff / Future)
While using its cover screen, for instance, you'll notice a status bar and side-positioned dock that's easier to reach with your thumb, but sometimes cuts into the Duo's screen real estate.
Several apps, too, are not yet optimized for the Duo's unusual screen sizes — first-party apps like Mail and Safari look great, but others (like LinkedIn and Instagram) are a little clunky at the time of writing.
These optimization issues will almost certainly be resolved quickly as app developers release Duo-specific updates, but they're worth bearing in mind nonetheless.
iPhone Duo vs iPhone 18 Pro: battery
The iPhone DuoLance Ulanoff / FutureThe iPhone 18 ProFuture/Jacob Krol
The iPhone Duo has a 4,883mAh battery, while the iPhone 18 Pro has either a 4,288mAh cell (if you’re getting an eSIM-only model like those sold in the US) or a 4,056mAh cell.
So in either case, the iPhone Duo has a higher-capacity battery, but it won’t necessarily last longer, with Apple claiming it can manage an impressive 44 hours of video playback if you're only using the outer display, but just 31 hours if you're mostly using the larger foldable screen.
The iPhone 18 Pro, meanwhile, splits the difference at 34 hours. For ‘typical use,’ they’re similar, with the iPhone Duo listed at 24 hours and the iPhone 18 Pro at 23.
In our own tests, we found that the iPhone Duo had “solid all-day battery life,” while the iPhone 18 Pro offered “outstanding endurance.” So neither phone should run low on battery too fast.
When they do need charging, the iPhone Duo can be juiced to 50% in around 20 minutes with a 60W or higher charger, or it can reach 50% in 30 minutes with a 35W or higher MagSafe charger.
The iPhone 18 Pro is slightly faster here, with Apple claiming it can reach 50% in just 15 minutes with a 60W wired charger, and the same 50% in 30 minutes with a 35W MagSafe charger. Those speeds proved accurate in our testing.
iPhone Duo vs iPhone 18 Pro: verdict
(Image credit: Future)
The iPhone Duo and iPhone 18 Pro are refreshingly different product offerings from Apple. They're similar in some ways, but very distinct in others.
The Duo gives you both phone- and tablet-sized screens, along with a higher-capacity battery and stylus support, at a much, much higher price than the iPhone 18 Pro — which itself has better cameras, Face ID, and a slightly faster-charging battery.
In other areas, they’re largely similar devices, offering comparable power and software (despite some early teething issues for the Duo), plus similar-quality outer screens.
The Duo gets a beautiful nano-texture inner display, though by virtue of it being a foldable phone, it's also heavier than the iPhone 18 Pro, and when folded shut, it’s also thicker.
So you’ve really got to think about what factors are most important to you and whether the benefits of the iPhone Duo outweigh its enormous price. Indeed, at such a high cost, you might want to consider buying both the iPhone 18 Pro and an iPad mini instead.
Still, the Duo is more pocketable than an iPad (crucially, you're getting two device experiences in one), and it’s an undeniably great phone, scoring 4.5 stars in our review. So if it suits your needs, you’re unlikely to regret buying it. Just be aware of the learning curve.
