HI,
There are two smartwatches which are best for the camera which I recommend.
1. If you have a good enough budget (around $500 - $600) then you should buy the Arrow smartwatch.
Arrow facilitates you to rotate the camera up to 360° degree, so it won’t be a hassle if you want to take the selfie and in next minute a picture of the landscape. Easy and quick. It is perfect for any selfie lover or photographer.
2. If you have a medium budget (around $150) then you can go ahead with Samsung Gear 2 Neo Smartwatch.
It provides you 2.0 MP camera which helps you to take stunning pictures. Video quality you get is also good like Samsung phones. The camera has autofocus option. Apart from photography, you need a lot more functions in a smartwatch.
I hope these smartwatches will worth you.