Both 7 Pluses I've had had the same issue. 6S was silent in video recording. I understand there will always be a little white noise, but the coil whine is not good. Desperate for them to sort it out.Guys is this the sound level of the hiss you're getting in your videos ? The video was filmed in a completely silent room.
Added finger snaps for reference. I'm just curious as to whether my phone is behaving like all the rest, or if it's worse and I should try to return it.