Garmin Recertified Device

I've been having bluetooth connection issues between my Tactic Delta and my iPhone 12 in that various times of the day or night they loose connection with each other and I have to constantly check the Bluetooth setting on the phone to see if they are still connected.

Garmin have offered me a Garmin Recertified Device which I believe are refurbs?!?

Does anyone have any experience with Garmin Recertified Devices and their quality?