As a general rule I don't put the Ryobi tools brand in the "top of class" bin.

The camera on a stalk phone accessory seems like a lot of trouble. One must pull out the accessory and get the phone App going.

The capability of sending and saving images might be very useful at times and the image resolution might be better than a native tool on a tight budget. From time to time, in tight quarters, the wireless link between phone and camera will be a plus. The remote viewing feature could be a great advantage when fishing from the other end of a wall. A down side will be image lag introduced by the transmission link between phone and camera.

And, I don't need yet another excuse to drain my phone's battery charge during the day. I guess that a plus feature for this sort of accessory could be a battery boost for the phone.

I'd need some hands on time with one of these gadgets before I'd commit to adding one to my tool bag.