When designing our devices, we take great care in selecting the highest-grade materials that pass all the FDA-required tests for biocompatibility so that you have the most secure and comfortable experience.
Top Cover
Housing: Anodized aluminum
Light Ring: Polycarbonate (PC)
Bottom Cover
Base: Polycarbonate (PC)
Electrodes: 316L Stainless Steel - standard material for watch cases and some jewelry, may cause minor reactions in those with very sensitive skin.
Screws: 304 Stainless Steel
Band Frame
Original Embrace: Aluminum, nickel-free chrome plated
Embrace2: Stainless steel, Chromium Nitride PVD coating
Stretchable Band
Polyester
Polyurethane
Aluminum, nickel-free chrome-plated buckle or Chromium Nitride PVD-coated stainless steel
Vegan Leather Band
Microfiber Polyurethane
Note: Wearing this band in the shower will decrease its durability and cause it to wear and tear faster, which isn't covered by our warranty.
These materials are not likely to cause any allergic reactions. You can read more about it here: Allergic reactions to Embrace.