Log in and
Username or Email
Forgot password?
Join and
You're almost done! Define a user name and password.
» Tip Us Hey you, we are hiring! Join us if you are an author, developer or designer!

Xiaomi Mi 6 vs OnePlus 3T: How flagship killers compete with each other?

21 April 2017 3

The Chinese smartphone giant Xiaomi just unveiled their first flagship of the year as Mi 6. The new flagship announced just two days ahead of Galaxy S8 release. The new flagship is bringing a number of changes over predecessor not only in terms of design but also in terms of hardware, cameras, fingerprint and battery as well. Xiaomi Mi 6 will be targeting those customers who are looking to purchase a high-end smartphone at affordable price tag.

Like always, a new flagship has to face stiff competition from smartphones available in the market, same is the case with the latest Mi 6. The device will have to face stiff competition from Samsung's Galaxy S8. We already compared how these devices compete for head to head in different aspects.

Today we are going to compare it with the last year flagship killer. Yes, you guessed it right, we are mentioning the OnePlus 3T. The device which competed pretty well against competitors and gives tough time to those flagships which were available for double of its price tag. Although OnePlus 3T is a year older device but still it is pretty much capable of competing against latest flagships.

Both Mi 6 and OnePlus 3T are of the same niche as both the devices target is to lure customers who are looking to grab smartphone with top-notch hardware at an affordable price tag. Without further ado, let's check out how both flagship killers compete for each other in a number of aspects.

70.5 x 145.2 x 7.5 mm
5.15 inches - 1920x1080 px
74.7 x 152.7 x 7.35 mm
5.5 inches - 1920x1080 px
Go to comparison page
Design and Build

This year Xiaomi brought a refreshing change in Mi 6 design. It has the 4D curved rear side which makes it more comfortable while holding. It has dual cameras on the top rear side alongside the flashlight. Usually, Xiaomi smartphones have fingerprint scanner on the rear side but that's not the case with Mi 6, as it is featuring the front facing fingerprint scanner is a physical button on the display. The device has USB Type-C for connectivity but it lacks 3.5mm headphone jack output. The device metal body is shiny especially the blue variant.

On the other hand, the OnePlus 3T is featuring the solid metal chassis design. The edges are round which gives the device a premium look. The rear camera sensor is slightly protruding and the LED flash is placed beneath it. The device is so slim that its thickest point is 7.35mm only. It also has USB TYpe-C port for connectivity and also 3.5mm headphone jack is alongside it. Both the devices power buttons and volume rockers are placed on the right edge side.

The Mi 6 is splash proof which means the device can survive rain drops and sudden drops water glass, however, unfortunately, OnePlus 3T doesn't have this capability. Both the devices are rigid, however, OnePlus 3T is a bit more solid.


As far as display is a concern, both the devices are featuring different type display. The Xiaomi Mi 6 is packed with a 5.15-inches LCD display with a Full HD screen resolution of 1080 x 1920 pixels. To reduce the effect on eyes, Xiaomi introduced a new eye-care glare. The Mi 6 is offering the display with 600 nits of brightness but users can reduce it as low as 1 nits to reduce the light stress on user's eye.

On the other hand, the OnePlus is featuring a 5.5-inches Optic AMOLED display with Full HD screen resolution of 1080 x 1920 pixels. Its display is protected with Corning Gorilla Glass 4. On paper, OnePlus 3T seems winner because of AMOLED display but on normal usage, user's won't be able to find differences.


The Xiaomi Mi 6 is the latest amongst the two that's why it has the advantage of having the latest chipset on board. The Qualcomm's latest Octa-core Snapdragon 835 chipset is powering the device. The first quad of cores is clocking at 2.3GHz whereas another half quad is clocking speed at 1.7Ghz. As opposed to that, the OnePlus 3T is packed with quad-core Snapdragon 821 chipset.

The SD 821 dual cores are clocking at 2.3GHz whereas other dual cores are clocking at 1.6GHz. The Good thing is both the devices are packed with 6GB of RAM. Another plus point of SD 835 SoC is it is built on 10nm FinFET process whereas the SD 821 is built on 14nm. The Adreno 540 is on board as GPU on Mi 6 whereas the OnePlus is featuring slightly older Adreno 530 as GPU. Let's check out more hardware details in the tabular form below.


OnePlus 3T

Xiaomi Mi 6


5.5-inch AMOLED
5.15-inch IPS LCD

Screen resolution

1080 x 1920 pixels

1440 X 2560 pixels


152.7 x 74.5 x 7.35mm

145.2 x 70.5 x 7.5mm
Weight 158g 168g


Qualcomm Snapdragon 821

Qualcomm's Snapdragon 835

GPU Adreno 530 Adreno 540







Rear camera

16MP with PDAF and OIS

12MP wide angle lens+ 12MP telephoto lens with OIS

Front facing

16MP with OIS


Headphone jack


No 3.55mm jack

Battery 3,400mAh 3350mAh
OS` Android Nougat 7.0 Android Nougat 7.1 with MIUI layer
USB Type-C port Yes


IP68 certification No No (Splash proof)

Xiaomi's flagship smartphone Mi 6 is following the trend set by iPhone 7 Plus. Yes, you guessed it right, there are dual cameras on the rear side. One of the sensors is the wide-angle module of 12MP whereas the second 12MP lens is telephoto which can zoom up to 2X without affecting the quality of the image. Apart from that the sensor packed with PDAF AND Anti-shake.

One of the major change in the OnePlus 3T was its camera sensors. It comes pre-loaded with the 16MP sensor on both front and a rear side with optical image stabilization, PDAF and LED flash alongside the rear sensor. On paper, definitely, the Xiaomi's Mi 6 sensor works more efficiently.


Nowadays, customers paid special attention to the battery cell of devices so that they can enjoy for a longer period on a single charge. The Xiaomi's Mi 6 is packed with a 3,350mAh battery which can be quickly charged thanks to Quick Charge 3.0 support and for connectivity, it has USB Type-C port.

The OnePlus 3T is juiced up under the hood with a 3,400mAh battery cell. It supports Dash charging tech which charges device pretty quickly. In this department, Xiaomi Mi 6 is the winner as its battery is not much smaller than OP3T but the latest SoC is more power efficient.


The Xiaomi Mi 6 base variant with 6GB RAM and 64GB storage is up for sale at a price tag 2,499 RMB in China whereas the Ceramic variant comes at a price tag of 2,999 RMB. The OnePlus 3T base variant is available for 3196 RMB whereas the 128GB variant can be grabbed for 3728RMB in China.


Both Xiaomi Mi 6 and OnePlus 3T are flagship killers that's why they fall in the same category. On paper, Xiaomi Mi 6 seems a better choice but that doesn't mean OnePlus 3T outclassed. It is important to mention that OnePlus 3T successor device is also expected in next couple of months with once again flagship killer specs. However, if you are amongst those who are looking forward to grabbing a smartphone with top-tier hardware, the Mi 6 is the currently better choice amongst the two.

We would like to hear our readers thoughts in the comments section below regarding the latest Mi 6 and slightly older OnePlus 3T and also which smartphone would they like to grab the new flagship killer or the last year OP3T.

  • The Xiaomi Mi 6 isn't still available online. To be notified when it becomse available click here.
  • The OnePlus 3T isn't still available online. To be notified when it becomse available click here.



Join our community » Xiaomi Mi 6 vs OnePlus 3T: How flagship killers compete with each other?

Top 5 best bezel-less smartphones | April 2017

Galaxy S8 vs S8 Plus vs Galaxy S7 vs S7 Edge: should you upgrade?

Samsung unveils bezel-less Galaxy S8 and S8 Plus with Bixby AI Assistant

Android O: Here is everything we know so far