OnePlus 6T's in-display finger scanner will be of the less precise optical type

OnePlus 6T's in-display finger scanner will be of the less precise optical type
There are optical fingerprint readers you can tuck under the screen of a "bezel-less" phone, and then there are superior ultrasonic ones. The OnePlus 6T will be going with the former, it tipped on social media, probably because they are cheaper, easier to produce in mass quantities and do the job satisfyingly well. 

The first generation of phones with in-display finger scanners, like the Vivo NEX with its pop-up selfie camera, carry under-glass readers which are of the optical variety. Qualcomm's new ultrasonic tech can work accurately through glass up to 800 microns thick, compared to 300 microns in the previous generation. The optical variety is typically supplied by the Chinese firm Gudix whose solution is the one currently used by phones with in-screen finger readers.

That's not to say that the OnePlus 6T will have trouble with unlocking, as even the optical scanners have proved to be perfectly operational even in their earliest incarnations. They work through stacks of screen protectors, too, and are just a tad slower and a bit less precise than the ultrasonic ones. 

At this point, however, we'd take anything over the old argument if the finger reader should be on the front or on the back, as the in-display readers render those points moot on today's "bezel-less" phones.

source: OnePlus (Weibo)

Related phones

  • Display 6.4" 1080 x 2340 pixels
  • Camera 16 MP / 16 MP front
  • Processor Qualcomm Snapdragon 845, Octa-core, 2800 MHz
  • Storage 256 GB
  • Battery 3700 mAh



1. adecvat

Posts: 658; Member since: Nov 15, 2013

Optical scanners are useless.

5. Phullofphil

Posts: 1832; Member since: Feb 10, 2009

Really.......what’s your proof to the accusations. This article says it works great

10. rouyal

Posts: 1583; Member since: Jan 05, 2018

"operational" doesn't mean "great".

13. theunspoken

Posts: 310; Member since: Jul 06, 2017

They don't mean useless too.

2. worldpeace

Posts: 3135; Member since: Apr 15, 2016

As expected, since all of it's brothers (OPPO&VIVO) also use this sensor.

3. Nimbus

Posts: 442; Member since: Apr 02, 2018

Honor 10(available in india outside china) and Xiaomi Mi 5s have ultrasonic fingerprints scanner have a price of Rs.32,999 same as One+6 6gb version price range.One+ again fail to include a better variety inscreen fingerprints scanner.6T is a Doa flop phone without a 3.5 jack and a notch included with slow optical fingerprints scanner and only 3700 mah bateery while PocoF1 have 4000mah battery.

6. evolution

Posts: 16; Member since: Sep 01, 2013

slow is no good. I'd prob get the 6. from my 5t :/

4. Sparkxster

Posts: 1247; Member since: Mar 31, 2017

Optical in display for can be just as good as ultrasonic ones gsmarena did a good article on this

7. Cat97

Posts: 1983; Member since: Mar 02, 2017

As far as I know, there is no other type in production right now. The ultrasonic sensor is not in production. The real issue with OnePlus 6T is the lack of a notification LED.

12. Back_from_beyond

Posts: 1475; Member since: Sep 04, 2015

Why is that an issue? Notification LEDs are obsolete these days

8. I_have_boxes

Posts: 74; Member since: Jun 02, 2018

The optical scanner works just fine. It's a little slower at times but it's not a big deal.

11. antroid

Posts: 396; Member since: Jan 24, 2018

Take everything with a grain of salt, even if they will use the optic sensors instead of ultrasonic or whatever, they might use more efficient software solution or maybe they will include some hardware enhancements so their finger print sensor would be better than a regular one. We just need to wait and see

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