I have been using the Movo PM10 Deluxe Lavalier Lapel Clip-on Omnidirectional Condenser Microphone with my Apple iPhone 6s Plus for almost a year now and it make a big difference with the sound quality. It’s easy to use, just plug it in the audio port and clip it to your shirt. The mic also eliminates having to sync with the video in post production. This this Microphone should work with any phone with a headphone port.
I highly recommend this Microphone for the sound quality and it durability.
Amazon Link: http://amzn.to/2ePKvpI