One concern that I have is that the Nano attaches directly to the lightning port, and I'm wondering whether I can use it with my smartphone case.
I got a lightning extender, which I'm hoping will allow me to do so:
I have doubts because the extender isn't Apple-certified and I got a popup warning saying that it might not be fully compatible with the iPhone.
Anyway, I'll let you guys know either way.
UPDATE 2: Here is an adapter that works and enables you to use the Nano without removing your smartphone case.
UPDATE: Good news and bad news. Bad news is that the lightning extender that I got doesn't work. However, reader Nao Nabe was able to use a certified lightning extension cable to work (he reports that his cheaper cables did not work). Meanwhile, Insta360 told me that they will have a lightning adapter in August to enable the Nano to connect to iPhones other than the iPhone 6 series. I'm hoping the same adapter will enable me to use the Nano with my case.