Unverified50% confidenceFactExact time
Apple Watch is equipped with two cardiac monitoring systems: a PPG photoplethysmography sensor on the back of the watch and an electrode-based ECG sensor on the crown.
1
Sources
50%
Confidence
Long-term
Relevance
9/1/2026
First Seen
Sources
Related Entities
Cite This Claim
Stable URI
https://kongchang.com/claim/840586API
curl https://kongchang.com/api/v1/knowledge/claims/840586MCP
get_claim(id=840586)