The slider phone is 2019's answer to the notch

As mobile phones continue to advance, the demand for more screen and less bezel is dominating design. Manufacturers proudly present higher and higher screen-to-body ratio percentage figures at their press conferences. But there’s a problem: where to put the cameras, sensors and fingerprint scanners in such devices?

We’ve all seen the notch – yes, the at-first dreaded notch; that black-out dip to the top of many current flagship phones, from the Apple iPhone XS to the Huawei Mate 20 Pro – but, if the second-half of 2018 is anything to go by, following Oppo’s reveal of the Find X, then the slider phone is the future. Xiaomi seems to think so too, following the announcement of its latest flagship, the Mi Mix 3, at a media-only conference in Beijing, China, on 25 October. And with Honor set to follow a week later with its October 31 event in the same city, momentum is certainly gathering.

But is the slider phone really the future, or just a short-lived fad? We take a look at the current devices trying to present an alternative future.

Xiaomi Mi Mix 3

  • Full slider phone design
  • Uses magnets and manual motion

Rather than investing in a motorised mechanical design, Xiaomi’s Mi Mix 3 functions using a magnetic system – it’s a case of manually sliding the phone up to display the front-facing cameras. It’s said to be good for 300,000 cycles, which is three times that of its mechanical competitors, like the Oppo Find X.

With an in-screen fingerprint scanner, the Xiaomi devices boasts a 93.4 per cent screen-to-body ratio, cementing the Mi Mix’s position as the device with the least bezel. Interestingly, the Mi Mix 3 offers customisable app launching when sliding it open. So it doesn’t have to just be for that selfie – it could be to answer a call, like a traditional flip phone, or to load a game.

Although we do worry that pulling it out of a pocket will see it constantly slide open – something mechanical devices avoid.


Honor Magic 2

  • 31 October reveal event

Due to be hot on the heels of the Xiaomi Mi Mix 3, Honor has been teasing its Magic 2 since the launch of the Honor Play in August 2018. Right now we don’t know all details and exactly how this sliding mechanism will work: manually, mechanically, as a pop-up component or full screen length. Watch this space, as we’ll find out everything on 31 October at the launch event.

The slider phone is 2019's answer to the notch

Oppo Find X

  • Full-width mechanical pop-up cameras

We thought the Oppo Find X was the device to make smartphones interesting again in 2018.

There’s nothing else out there that’s like it, with a mechanical pop-up mechanism the full width of the phone that reveals the cameras. However, its EUR999 price tag (it’s expected to be GBP999 in the UK, when (and if) it launches) directly relates to having such technology.

Pocket-lintThe slider phone is 2019's answer to the notch

Vivo NEX S

  • Pop-up camera

Ok, so it’s not a slider phone, per se, but this was the first device to change the pace. Initially shown as the Vivo Apex concept at IFA 2017 (Europe’s largest tech show), the device quickly turned into the Vivo NEX S, a full to-market device with a mechanical pop-up camera built into its top edge.

Not having a full-on slider phone design means it retails for less than the Oppo, although it’s equivalent price depends on direct conversion from the Chinese model (which isn’t quite accurate due to exchange rates, import export and tax).

Samsung Galaxy S10

  • Rumoured behind-screen front camera

But there’s a problem. Samsung’s rumoured work on a behind-screen camera in the Galaxy S10, expected in 2019, removes the need for any mechanical movement. Well, if it works well enough anyway.

In turn, not having moving parts reduces the cost of production and therefore the sale price of such a device. Or, realistically, it allows the profit margin to be kept higher, while ensuring fail rates are lower.


Whether it’s notches, pop-up cameras, behind-screen sensors, or a combination of some or all that will dominate future phones remains to be seen. But we know this: the Chinese makers are thinking outside of the box and making phones exciting again, while other devices reside in the safe place of minor updates.

The Xiaomi Mi Mix 3, in particular, creates a convincing image of the flip phone reimagined.

But herein lies the problem with the very idea of the slider phone: it’s an exciting fix for what’s likely to be a temporary problem.

The integration of mechanical components in many devices may cause issues later down the line, while other advancing technologies that eliminate the very need for physical movement (yes, that behind-screen camera) will ultimately see the slider phone go the way of the flip phone: into a happy nostalgic place.

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