Looks like someone in the comments (https://www.theverge.com/2018/11/7/18072192/pokemon-go-11-phones-taiwanese-grandpa#496656375 https://www.theverge.com/2018/1

Looks like someone in the comments (https://www.theverge.com/2018/11/7/18072192/pokemon-go-11-phones-taiwanese-grandpa#496656375 https://www.theverge.com/2018/11/7/18072192/pokemon-go-11-ph...) has posted a picture showing that there are 15 of them on his body harness! (The picture does make it a lot easier to see them when they are pointed out! :) ) Actually impressed with that setup though, not sure you can just go down to your local shop and buy a 11/12/15 phone harness!