What size/dimensions is the life-saving wristband and base station?

The wristband comes in two sizes: normal fits wrists 13.4–20.2cm and small fits wrists 11.0–15.2cm in circumference. It is 2.4cm wide and where the buttons are it is 1.5cm deep, a comfortable size for most fingers. It weighs 34 grammes.

If needed we can provide an extender for larger wrists.

The Dimensions of the Base are 17.1cm x 3.5cm x 11.8cm deep which is comparable to a paperback book. It is designed to lay flat (like a book on a table) or stand upright (like a book on a bookshelf).