The audio to your vlog is very important and if you are vlogging with your phone the audio might not be as good as you like if you just rely on the onboard mic of your device. It helps therefore to use additional mic to boost your audio.
I am vlogging with my Huawei P10 Plus and my Iphone 6 Plus and I used Boya By-M1 lav mic to boost my audio. The wires for the mic was a bit long so I bought another mic from Comica.
So here's the review of the Comica lav mic:
Regards,
Saadon Aksah