Huami, makers of the popular Amazfit and Mi Band products, are having a product tie-in to coincide with Avengers: Endgame. Source: Huami announces product tie-in with Avengers: Endgame – Gizmochina
Source: Red Dot Award Winner Amazfit ZenBuds with Noise-blocking In-ear Design, Soothing Sounds and Smart Sleep Monitoring Starts Crowdfunding from June 30