$700 + $24/month for an uglier plastic name badge + police body camera. No thanks

Also:

To put on the Ai Pin involves placing a magnetic battery pack on the inside of a shirt or other piece of clothing, and letting a magnet on the Pin itself hold the system in place. It’s altogether about 55 grams, or 2 ounces, nearly the weight of a tennis ball. People with pacemakers should consult their doctors about potential magnetic interference, Chaudhri says.

It's pretty heavy and the backside of the clip is a magnetic battery pack.