The GoBe2 Smart Life Band is made of:
Wristband – TPSIV (Thermoplastic polyurethane and crosslinked silicone rubber) with an aluminum buckle.
Device – ABS (Acrylonitrile butadiene styrene) and PC (Polycarbonate) – plastic
Electrodes/Impedancemetry – Stainless steel + IPG (Ion-Plating Gold).
Stainless steel contains about 6-20% nickel, but the stainless steel layer is covered with two layers of other nickel-free metals, so it doesn’t come in direct contact with the skin.