Latest newsis that we are looking at February for a Garmin firmware update.
Until Garmin release a Vector 3 firmware update that enables Bluetooth for Zwift and other apps, here is how you can use the pedals with a newer iOS device.
A. Use a ANT+ to Bluetooth bridge
(Note: I have not used this approach, but others have done so sucessfully)
This may also be a good way to get the Vector 3 working with RFLKT
B. Use the Wahoo ANT+ Key along with a 30 pin to lightning adapter
(Note: This is how I currently use the Vector 3 pedals.
However, the key seems to be out of stock.
Also, with the latest iOS updates, I keep having to reinsert the key to get arond the “Accessory not supported” messages)
Also need the 30 Pin Adapter for Lightning
IMHO, since we are only a few weeks away from a firmware update, you are better off waiting.