We did download the update and we do think that it has made a difference to the screen unlock of OnePlus 6T. Earlier, we did face a lag at times before the smartphone would unlock with the in-display fingerprint sensor. But post the update, it is much quicker and it reads fingers of both our hands accurately. For us, the smartphone’s unlock started working better immediately. It is worth noticing that OnePlus 6T uses the same in-display fingerprint scanner as Vivo and Oppo smartphones. This isn’t surprising as all three have the same parent company, BBK Electronics. There are two kinds of in-display fingerprint scanners — ultrasonic and optical. OnePlus 6T, and devices from Oppo and Vivo, use the optical on-screen fingerprint sensor. Optical in-display fingerprint sensors are usually cheaper and less secure than ultrasonic on-screen fingerprint scanners. This is because they capture the fingerprint in the form of a 2D image, which is later used to analyse the prints on the finger. Ultrasonic fingerprint sensors, on the other hand, use ultrasound to create a 3D image of the user’s finger(s). But then, on the upside, optical fingerprint sensors are supposed to be quicker than ultrasonic. Besides an in-display fingerprint sensor, OnePlus 6T mobile also comes with face unlock technology. The update is now rolling out to all OnePlus 6T devices and users should have received a notification for the same. Speaking of in-display fingerprint sensors, Samsung’s upcoming Galaxy S10 smartphone will also reportedly sport one. However, the South Korean technology giant has opted for an ultrasonic fingerprint scanner rather than an optical one. According to reports, Samsung has dedicated 30% of Galaxy S10’s screen’s area for the fingerprint sensor, meaning that the user can place his finger anywhere in that area to unlock the device. We already like the idea of so much screen being dedicated to the fingerprint scanner and we are looking forward to seeing how it actually works.
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