Leaked Vivo Xplay 7 slides tout true 'all-screen' phone with hidden finger scanner

Make of it what you will, but it was not Samsung or Apple, and rather the Chinese phone maker Vivo (which shares a parent company with OnePlus) that showcased a working prototype of a phone with under-display finger scanner, based on its Xplay 6 model. Now, for the Xplay 7 next year, Vivo might have polished the technology enough to place it in a retail device, leaked intracompany presentation slides suggest.

Vivo uses Qualcomm's ultrasonic tech that is not as elaborate as the one from Synaptic, but given that both Apple and Samsung reportedly struggled ...