We've been wondering about the fingerprint reader on the Oppo R17 - if it's not on the back, will it be under the display? That's exactly what the latest leak claims, showing a telling "fingerprint" graphic on the display. But the credibility of this rumor is under question. Note the dual rear camera - it's vertical. In the images from TENAA the camera was horizontal. We tend to believe TENAA more than random rumors, though there's chance there has been a mix-up. The Oppo R17 may have an under display fingerprint reader See, the official image of the Oppo F9 Pro shows a...
Source: https://www.gsmarena.com/oppo_r17_leak_shows_an_under_display_fingerprint_reader-news-32568.php