Using Zwift with mobile phone

Hi, I want to use Zwift on my mobile using Garmin vector pedals and a dumb trainer but Zwift can’t find pedals when using phone. It works great with laptop with ant dongle in it.

What mobile phone are you referring to?

iPhone 5

Which version of Garmin Vector pedals?

Are they both ANT+ and Bluetooth or just ANT+?

Zwift on iOS is Bluetooth only.