We tested the OnePlus Open, the folding phone that surprised me the most

we tested the oneplus open, the folding phone that surprised me the most
we tested the oneplus open, the folding phone that surprised me the most

OnePlus has presented its first foldable mobile phone, the OnePlus Open, and we have tested it thoroughly for two weeks. Impress.


Oneplus has just announced the arrival in Spain of its new folding smartphone , the company’s first within this market segment. The OnePlus Open has been with us for about two weeks, in which we have been able to analyze it in depth, and it has left a great taste in our mouths. And the competition is strong .

It might seem striking that OnePlus, which has been restructuring in recent years, has launched itself into a market as complex as that of folding devices, but it is better understood when you know that this mobile phone has been “co-created with OPPO” , as they themselves say. responsible for the company. It is an elegant way of saying that this terminal is a version of another OPPO model . Specifically, the OPPO Find N3, a mobile phone that has not yet been announced and that we can already anticipate will not arrive in our country. 


The OnePlus Open will go on sale in Spain on October 26 at a price of 1,849 euros , a very high cost but in line with what we have seen from brands such as HONOR, Samsung or Huawei. It can be purchased both on the OnePlus website and on Amazon.

The most elegant folding

The new OnePlus smartphone is a foldable with a solid and compact construction . The aluminum, cobalt and titanium hinge, among other materials, is one of the strongest on the market, with only 69 pieces compared to more than 100 elements in other folding devices.


This hinge is supposed to withstand 1,000,000 folds, which should be enough to withstand 100 openings a day for 10 years . Obviously we haven’t been able to put the company’s claim to the test, but the in-hand feel couldn’t be more positive.

The device has a very good external screen ratio and a water drop-shaped fold that minimizes the central wrinkle . In addition, it has four speakers that provide an immersive audio experience. The OnePlus Open is slightly heavy, although not for a foldable, weighing 245g.

The camera module is somewhat large and you can feel it with your fingers when you pick it up , both open and closed. For its part, the rear finish with vegan leather is pleasant to the touch and provides good grip. A fingerprint sensor is included in the power button and good quality buttons. In addition, it has a sound slider, one of the characteristic points of OnePlus’ high-end mobile phones, although they have already been seen in OPPO models, such as the OPPO Find N3 Flip .

The best of the best

The OnePlus Open arrives with the best specifications on the market . The processor is the Snapdragon 8 Gen 2, a chipset that is characterized by its high performance and energy efficiency. This processor is capable of handling demanding applications and games without problems, thanks to its eight-core architecture and a maximum clock speed of 3.2 GHz.

In terms of memory, this device has 16 GB of LPDDR5X RAM and 512 GB of UFS 4.0 storage, making it one of the devices with the highest storage capacity on the market. In addition, it has 12 GB of virtual RAM , which allows for better memory management and smoother performance.


It is important to note that this device does not have a headphone jack or microSD card slot . However, this shouldn’t be a problem as there are adapters for connecting headphones to the device’s USB-C port and the large amount of internal storage should be enough for most users. Another interesting feature of the device is its graphene heat dissipation layer, a highly conductive material that has an extremely high thermal capacity, which helps keep the device cool even during prolonged use.

Regarding connectivity, highlight the compatibility with Wifi 7, Bluetooth 5.3 or dual-band GPS and NFC for mobile payments. The OnePlus Open has not cut corners in any aspect, and makes it clear that the company seeks to be the reference in this very small sector of the market, that of foldables .

Two impressive screens

External screen

OnePlus has taken great care to create a foldable mobile phone that would not be comfortable to use closed. Unlike what happens with some Samsung models, the OnePlus Open invites you to use the external screen as if it were a normal mobile phone . This 6.31-inch panel with a resolution of 2484 x 1116 FHD+ and an aspect ratio of 20:09 works literally like any other mobile.

The screen has a hole for the inner camera at the top center. The peak brightness of the screen is 2800 nits when viewing content in HDR, normally reaching 2100 nits . Additionally, the display supports HDR10, HDR10+, and Dolby Vision, allowing for a more immersive viewing experience.

The panel also has LTPO 3 technology that allows a refresh rate of up to 120 Hz , which provides a more fluid user experience, and energy savings, by allowing the Hz to be lowered to 1. In general, the screen of the device is capable of displaying all applications clearly, although on occasions we have seen how some games can present problems the first few times they are opened.

Internal screen

The internal screen is very similar in performance, with a diagonal of 7.28 inches and a resolution of 2440×2268 px , but with the same OLED technology, compatibility with HDR10, HDR10+, Dolby Vision, up to 120 Hz refresh rate, etc.


OnePlus has managed to ensure that the wrinkle is not very noticeable , not even when we run our finger over it, although if we stop to look it will obviously be found. The protection of the panel is given thanks to an Ultra Thin Glass with TPU protector. It has a hole for the inner camera in one corner.

It is clearly a screen that takes advantage of its potential when we use two applications at the same time , being able to display the apps as if they were two mobile phones side by side. When consuming video content, space is lost, since the ratio is almost 1:1, very different from that normally used to record and play multimedia content.

Is this camera in a foldable?

One of the best features of OnePlus in this mobile is its camera system. Unlike most folding products, the company wanted to bet heavily on this section. The collaboration with Hasselblad continues , now as Hasselblad Cameras for Fold.

The huge rear camera module stands out in design , which occupies almost half of the rear area of ​​the mobile when closed. In addition, it sticks out quite a bit, which is logical because a lot of space is needed for the hardware and this phone is not particularly thick. As the module is centered, it can be rested comfortably on the table.

rear cameras

The main camera of this mobile uses a new generation Sony sensor called LYTIA T-808, which improves image quality in especially complicated situations. This sensor is 48 Mpx, although it shoots at 12 Mpx by default, as is normal. Its aperture is f/1.69 and it has optical image stabilization. OnePlus has boasted that it has greatly improved the portrait, but the crop is still not up to par with what Samsung, Google or Apple do.

At night the quality is quite decent, with very good light control and correct detail, which does not appear noisy nor does it blur the image so that everything remains flat. Of course, the change in colorimetry of the cameras must be reviewed , because it seems that photos have been taken with different mobile phones because of how much it changes.


 The second camera is a 48 Mpx ultra wide angle , something that draws attention and is that brands like Samsung or Apple do not usually provide that much resolution in this type of lenses. Chinese brands do, and OnePlus joins the trend. It is stabilized with OIS and has a fairly high aperture of f/1.6.

The last sensor is the most peculiar. It is a telephoto lens with 64 Mpx optical zoom , with an f/2.6 aperture and OIS. It is capable of offering 3x lossless magnification, as well as 6x sensor cropping. It is rare to see a solution like this, a zoom with periscopic system for 3x magnification instead of 5x or more.

As for video, it is capable of recording video at 4K 60 fps with any of the rear cameras , although with the internal ones it remains at 4K 30 fps . Still, taking into account that there are 1,400 euro phones that do not record 4K with the front cameras, we are satisfied.

Selfie Cameras

As for the selfie cameras, there are two. The main one is the one on the external screen, with 32 Mpx, with quite correct performance although with sometimes too forced use of HDR , which results in images with very unrealistic colors. Furthermore, at night you have to be very still because otherwise the movement is inevitably reproduced in the image.

Inside there is another sensor, which will be used especially for video calls, with 20 Mpx, a more logical bet than what Samsung makes with its 4 Mpx under the screen. The best thing about foldables is that you can use the main cameras to take selfies , using the software provided and leaving the terminal open. Ergonomically it is not the most comfortable, but the leap in quality is certainly noticeable.

An excellent battery

The device’s battery has a capacity of 4805 mAh and can be charged with a 67W charger that is included in the box . According to OnePlus, the battery can sustain up to 1600 charges before the battery drops below 80%. The device charges in 42 minutes with the included charger. Unfortunately, the OnePlus Open does not have wireless charging so as not to increase the thickness and weight.

This has caused the screen to have a somewhat lower brightness. We have used them closed more times than open. We have reached 6 hours of screen time with more than 30 total hours of autonomy .

In the second battery test we continued using the mobile phone always under WiFi. In this case we have substantially improved the figures, perhaps because we did not have to configure applications. We have reached 7 hours of screen time with 35 total hours of autonomy .

We have done the third test using almost exclusively the interior screen, which should spend more. The point is that we have played a little less, and that is quite noticeable. We have reached 8 hours of screen time with 36 total hours of autonomy .

In the last test we were away from home half of the time. This has caused the autonomy to drop a little, but it has still surprised us. We have reached 5 hours of screen time with more than 30 total hours of autonomy .

The interface is not a problem

Android 13, the penultimate version of Google’s mobile operating system, arrived last year with a big focus on productivity. This is reflected in a series of new functions and improvements that allow users to make the most of the screen of their smartphones , especially if we talk about folding ones. In fact, a year before there was even a version of the system designed for them, Android 12L .

Oxygen OS 13.2, the version of the interface carried by OnePlus Open, is an example of how these new features can be implemented effectively. The app dock has been redesigned to allow users to resize it, display recent apps, and two shortcuts on the left side, recent files and apps. Multi-window has also been improved, with an app sidebar that makes it easier to open new windows. Additionally, floating windows can now be resized to suit the user’s needs.


One of the most interesting features of Oxygen OS 13.2 is Open Canvas. This feature allows users to create an additional virtual screen that can be used to open applications and windows. This is useful for tasks that require a large amount of space, such as editing photos or videos. This is an ingenious execution that we hope will reach more manufacturers . But they are not the only news:

  • Usable Folders: Users can now create app folders that can be used to open apps without entering them.
  • Dragging documents: We can drag documents to open applications.
  • Outdoor Desktop Synchronization: Outdoor desktops now sync with indoor desktops, making it easier to switch between them.

Together, these new features and improvements make Oxygen OS 13.2 an excellent option for users looking for a smartphone that allows them to be more productive. The operating system offers a wide variety of tools and options that allow you to personalize each user’s experience. OPPO has put a lot of effort into developing foldable software for its phones, and OnePlus has taken advantage of it.


Application Dock

The application dock has been redesigned to allow customization. It not only shows the chosen apps, but also shows recent applications and includes shortcuts on the left side, recent files and applications. This makes it easier to access frequently used applications and files.


Multi-window has been improved, with an app sidebar that makes it easier to open new windows. Now we can drag and drop applications from the sidebar to open them in a new window. This makes it easy to open multiple apps at the same time. Additionally, floating windows can be resized to suit the user’s needs.


Open Canvas

Open Canvas is a feature that allows users to create a virtual screen that can be used to open applications and windows. Open Canvas can also be used to split the screen into two or more sections, allowing users to work with multiple applications at the same time. We can move them to take them off the screen or put them in, in a kind of emulation of the scrolling that is so popular in social media apps.

Usable folders

Usable Folders is a feature that allows users to create application folders that can be used without having to go inside the folder. This is not something new, but it is much more useful in a mobile phone with a screen as large as the one the OnePlus Open has.


Technical characteristics

Processor and memory

  • Qualcomm Snapdragon 8 Gen 2.
  • RAM memory: 12 GB LPDDR5X.
  • Internal storage: 512 GB UFS 4.0.

Internal Screen

  • Size: 7.1 inches.
  • Refresh rate: 120 HZ LTPO3.
  • Resolution: 2440×2268 px.
  • Brightness: 2800 Nits.

External Screen

  • Size: 6.31 inches.
  • Resolution: 2484 x 1116 px.
  • Refresh rate: 120 Hz.
  • Brightness: 2800 nits.

Rear camera

  • Main: 48 Mpx f/1.69 Sony Lytia with OIS
  • Wide Angle: 48 Mpx f/1.6 with OIS
  • Telephoto sensor: 64 Mpx f/2.6 3x optical and 6x hybrid.
  • Others: LED Flash.

Front camera

  • Indoor: 20 Mpx.
  • Outdoor: 32 Mpx.


  • Bluetooth 5.3.
  • Wi-Fi 7
  • Dual band.
  • Dual SIM.
  • GPS / AGPS / BeiDou / Glonass / GALILEO / QZSS.


  • Battery: 4,805 mAh.
  • Fast charging: SUPERVOOC 67W.


  • USB-C port.
  • Stereo speakers with Dolby Atmos.
  • Fingerprint sensor on the power button.

Dimensions and weight

  • Dimensions: –
  • Weight: 245 grams.


  • Android version: Android 13.
  • Custom: Oxygen OS 13.2.


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