Amazfit GTR 3 used an unknown processor. This Watch Used as storage for unknown GB RAM and unknown GB storage. Zepp OS Used for the system. Used as sensor features Monitors Heart Rate All Day and While Swimming, In-Depth Monitoring of Sleep, Tracks Stress Levels, Smart 24 Hours Blood Oxygen Monitoring, Powerful Navigating Systems- GPS, Galileo, GLONASS, BDS, QZSS, Battery Life Up to 21 Days, 150+ Sports Modes with 5 ATM Water Resistance, 100+ Watch Faces & Always on Displays, Built-in Alexa and Offline Voice Assistant, Virtual Pacer Compatible During Outdoor Running and Treadmill Sports Modes.