I just don’t think a camcorder (unless you’re going high end) can compete with a device who’s camera is better with each passing year. It’s just too convenient to have one’s iPhone or iPad on you, and press record (with a good mic and/or interface). The iPad recording (for me) is nice because if I want to edit, I dont have to airdrop some huge file from the phone to the iPad. The recorder IS the editor. That said, a camcorder is less conspicuous in some situations and when that’s called for, I use the iPhone.
Many reviews talk about photo quality between say android devices and iPhones, but almost every review says ios video is second to none.
A lot of it is trade-off. The sensors in most smart-phones (which are all primarily Sony-made anyway) are going to usually be superior to what you find in any inexpensive prosumer camcorder. If you want a really good image sensor on a camcorder, you're looking at $1500 min, especially for higher resolutions.
However, the lenses in even the best smart phones are still mostly trash compared to the lens you'll get on a moderately priced camcorder, especially if the camcorder has a bayonet that allows you to swap out lenses or mount a rail system that allows you to use adapters to expand your lens choices.
Additionally, even cheap camcorders allow you to fine-tune your image, like ISO, shutter speed, F-Stop, gain, etc. While smart phones have gotten better, there's still some stuff you just can't adjust on an iPhone camera without investing in software that has the camera APIs to grant you more control than the stock Camera app.
So, do you go for optics/image control, or sensor? 🤔