For those wondering, here's a side-by-side of the 5x Plus and the 6x Pro : r/GarminFenix
Compatible Garmin Fenix 6x/7x Band Easy fit Soft Silicone - Temu
Garmin Fenix 5X Plus Sapphire Edition vs Garmin Fenix 6X Pro: What is the difference?
Pencoda for Garmin Fenix 7X/6X/5X Plus Band, 26mm Titanium Metal Quick Release Easy Fit Watch Bands with Double Button Clasp for Garmin Fenix 7X/6X Pro/5X/5X Plus Smartwatch (Black) : Amazon.com.au: Sports, Fitness