Matrix PowerWatch 2 uses solar and heat to power GPS, heart rate at CES 2019 - CNET
Best Buy: Matrix PowerWatch X Watch Black PW05
Matrix Powerwatch 2
Amazon.com: Supershieldz (6 Pack) Designed for Matrix PowerWatch Series 2 Screen Protector, Anti Glare and Anti Fingerprint (Matte) Shield : Cell Phones & Accessories