We all know that most of the countries just got updated their App recently.
But they experience some problems thats why they need to fix something in their system so that in the launch of the Pokemon Go Plus the players will not experience any problem with their gadget.
Pokemon Go Plus is detecting Pokemon before they would show up and seemed to prioritize them over Pokestops.
As you can see the screen shoot below the Pokemon Go Plus alerts when there's a nearby Pokemon.
The Device will vibrate when the player didn't notice the flashing signal. When catching a Pokemon in your area Just press the button in the middle if the catch is successful it will vibrate long and it will flashes random colors and your catching is a SUCCESS!
When the catch is unsuccessful it will flash red light and it will vibrate once.