I have only had this a few days, but its comfortable to wear and serves the aim of the product.
The silicone band is comfortable on the skin and has a loop and hook system.
Same as the Apple watch silicone sport bands
The strap is size adjustable and would suit wrist sizes from 14cm to 22cm
Very smart in all black, uses a loop strap for extra comfort using no metal for a clasp.
Aluminium tag holds 5 lines of medical and personal info