Most (probably all) of the videos on my channel of me playing guitar were taken with a smart phone.
https://www.youtube.com/channel/UC8p..._UXXbe2W_STsTw
I'd say use your phone and if later you decide you aren't happy with the resolution / quality, remove the videos and replace them with higher resolution.
If you look at the small number of views my videos have gotten, it might help keep things in perspective and I've shared them with many friends to get the view count to where it is.
The drone videos were taken with the onboard camera (poor resolution) or with a go pro (better resolution)