camera for videos

Now this is much more difficult as there are so many options to choose from. Also, videos need sound, and in that area there are also many choices: you can use internal built-in mic or go pro and use external mic and recorder.

For camera, you have couple options: iPhone, Sony ZV-1 or some pro camera like Panasonic GH5. There's also Sony RX100 which can take good pictures as well.

Ultimately however, it's all about size and convenience. Bigger and heavier cameras usually give better video quality and handling, at the cost of weight and size. For travel, when you have to carry your camera all the time, it seems more reasonable to pick lighter option.

This limitation makes choice easier, ruling out anything like Panasonic GH-5 or Sony a7, leaving us with the likes of Sony ZV-1 (or RX100) or iPhone. 

While iPhone has an advantage of always being with you, it also has some disadvantages when it comes to handling - physical controls are simply better. 

If size/weight is a concern, maybe go further and pick a gopro or even insta 360 go?

This is possible, however not without sacrificing image and sound quality, handling and battery life. 

Using iPhone for videography sounds like a good option, however, phone is also used for other things which means more battery usage, and while it simplifies overall equipment, it comes with a cost. 

This leaves us with three options for now: Sony ZV-1, RX100 V or iPhone.