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Xiaomi Mi A2 vs OnePlus 6: How they differ?

26 July 2018 5

This year Xiaomi took a different route by announcing two Android One smartphones. Last year Xiaomi unveiled Mi A1 as their first Android One smartphone. The device achieved much success and rated amongst the best selling smartphones from Xiaomi during last year or so. The huge success of Mi A1 prompted Xiaomi to release two Android One smartphones this year. The Mi A2 is the successor variant of Mi A1 whereas the A2 Lite is targetted to those who want stock Android experience on a mid-range smartphone.

Being a mid-range smartphone the Mi A2 will certainly challenge other smartphones in the same niche. Like always we compared the latest smartphone Mi A2 against its predecessor as well as Mi A2 Lite. Today we will put it in a head-to-head comparison against the flagships killer OnePlus 6. Both the devices are the latest offering from respective companies in the budget-friendly segment.

For those who are looking to grab Mi A2 will consider OnePlus 6 as well. The Oxygen OS is pretty much close to the stock OS that's why the UI experience on the OnePlus 6 isn't much different from Mi A2. We are hopeful this comparison will certainly help you better decide which smartphone is better in what aspects. Without any further delay, let's start with the design of both the devices.

75.4 x 155.7 x 7.75 mm
6.28 inches - 2280x1080 px
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In the design department, both the devices have different design language. Xiaomi once again opted a unibody metal design whereas the OnePlus 6 features glass and metal sandwich design. The Mi A2 features an aluminum unibody design. The front-facing glass is protected with Corning Gorilla Glass. Despite the fact the Mi A2 has 2:1 display still it has significant bezels around the display.

On the rear side, the Mi A2 has dual cameras on the top left corner with LED flashlight between two sensors. Due to full front-facing display, the Mi A2 has a fingerprint scanner on the rear side below the dual cameras. The Mi A2 dimensions are 158.70 x 75.40 x 7.3mm and weigh 168g. The device will be available in Black, Blue, Red, Gold and Rose Gold variants. For connectivity, the device has USB-C port but unfortunately, it lacks the traditional 3.5mm headphone jack.

The OnePlus 6 has an aluminum chassis with Corning Glass covering the front and rear side. On the front, the device has a notch at the top of the display. The rear side has dual cameras setup aligned vertically in the center. The fingerprint scanner is more rectangular now and placed right below the dual sensors. For connectivity, the OnePlus 6 has USB-C port. It also has a traditional 3.5mm headphone jack. The device measurements are 155.70 x 75.40 x 7.75mm and weights 177g.

In terms of colors options, the OnePlus 6 is available in Silk White, Midnight Black, and Mirror black variants. Although both the devices lack the IP ratings the OnePlus 6 is capable to resist rain and shower water up to some extent.



Following the latest trend, both OnePlus 6 and Mi A2 has a full front-facing display. The Mi A2 has a bezel at the top whereas the OnePlus 6 has a notch at the top of the display. The Mi A2 sports an IPS LCD display panel of 5.99-inches with a Full HD+ screen resolution of 1080 x 2160 pixels. The display aspect ratio is 2:1 and the pixels density is 403 pixels-per-inch. The display is protected with Corning Gorilla Glass 3.

On the other hand, the OnePlus 6 has an AMOLED display panel of 6.28-inches with a Full HD+ screen resolution of 1080 x 2280 pixels. The display aspect ratio is 19:9 and the pixels density is 402 pixels-per-inch. The OnePlus 6 display is protected with Corning Gorilla Glass 5. In terms of display brightness, contrast ratio and deep blacks the OnePlus 6 takes lead here due to AMOLED panel.


Under the hood, both the devices have hardware from different niches. The Mi A2 falls in the upper mid-range category whereas the OnePlus 6 has the premium-level hardware. The Mi A2 is running on an Octa-core Snapdragon 660 chipset. The entry-level variant has 4GB RAM with 32GB storage whereas the standard variant has 64GB storage. The top-tier model has 6GB RAM with 128GB storage. Its native storage is further expandable via MicroSD card.

The OnePlus 6 is packed with one of the best hardware in the premium segment. The Qualcomm's Octa-core Snapdragon 845 SoC is powering the device with max clocking at 2.8Ghz. The base variant has 6GB RAM with 64GB storage whereas the other two variants have 8GB RAM with either 128GB or 256GB storage. Its native storage isn't further expandable via MicroSD. In terms of performance, the OnePlus 6 is certainly a better option due to better hardware, more RAM, and storage.

Specs Xiaomi Mi A2 OnePlus 6
Display 5.99-inches 6.28-inches
Screen resolution 1080 x 2160 pixels 1080 x 2280 pixels
Chipset Snapdragon 660 Snapdragon 845
RAM 4,6GB 6,8GB
Storage 32,64,128GB Expandable via MicroSD 64,128,256GB Non-Expandable
Rear cameras 12+20MP 16+20MP
Front camera 20MP 16MP
USB Type-C Type-C
3.5mm headphone jack No Yes
OS Android Oreo 8.1 Android Oreo 8.1
Battery 3,080mAh 3,300mAh


Both the Mi A2 and OnePlus 6 has dual cameras setup on the rear side. Xiaomi claimed the Mi A2 is a camera-centric smartphone as it features one of the best cameras in its niche. The primary rear snapper is 12MP Sony IMX386 sensor with f/1.75 aperture whereas the secondary sensor is 20MP Sony IMX376 sensor with f/1.75 aperture. Both the sensors have a large aperture to capture great shots in low-light conditions.

Xiaomi tuned both the cameras with AI machine learning algorithms to ensure best possible shot in most of the scenarios. The dual sensors capture great portrait shots. Xiaomi introducing a pixel binning feature which joins the pixels to produce great final shots during low-light scenarios. Up front the selfie camera is 20MP.

Both the dual sensors on the OnePlus 6 are the main sensors of 16MP+20MP. Both the modules aperture size is f/1.7 with Optical image stabilization. The device supports 4K at 460fps. The front-facing selfie camera is 16MP with f/1.7 aperture. The OnePlus cameras are not AI tuned like the Mi A2, however, they are still on par with the Mi A2.


As far as the battery cell is a concern the Mi A2 has a 3,080mAh battery cell. It comes with Qualcomm's Quick charge 3.0 straight out of the box, however, the company stated the Indian variant will have Quick charge 4.0 exclusively. The OnePlus 6 has a 3,300mAh battery cell. It features the company's own Dash charge tech which is rated amongst the best in the market. Both the devices have enough juice to last one day on a single charge.


As far as software experience is a concern the Mi A2 has an advantage of being of the vanilla version of Android OS. The Mi A2 is pre-installed with stock Android Oreo 8.1 with none bloatware. On the other hand, the OnePlus 6 is running on Android Oreo 8.1 with Oxygen OS layer over it. The amount of bloatware is quite minimal, still, it isn't as clean as stock OS. ​


The Mi A2 and OnePlus 6 brings two different design language, now it's up to customers whether they prefer unibody metal design or glass and metal sandwich design. Same is the case with the display, either you will get a display with bezels or a notch display. In terms of hardware performance, the OnePlus 6 definitely has an upper hand. The software experience on the Mi A2 is better if you prefer vanilla Android OS.

Last but not the least the price tag will play a vital role here as the Mi A2 will be available at almost half of the OnePlus 6 price tag in Europe and other regions. Are you willing to spend extra on stylish design with a notch, better display, hardware, and battery or not. Feel free to share your thoughts with fellow readers in the comments section below. Stay tuned for more comparisons.

  • The Xiaomi Mi A2 isn't still available online. To be notified when it becomse available click here.
  • The OnePlus 6 isn't still available online. To be notified when it becomse available click here.



Xiaomi Mi A2 vs OnePlus 6: How they differ?
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