About this video
This video talks about smart rings that track your health. It explains how they work and why they might not always be accurate. It also mentions some cool research being done on wearable technology.
🧠 Quiz & Trivia
Test your knowledge after watching!
Q1 What color light do smart rings use to measure your heart rate?
Answer: Green
Q2 What does PPG stand for?
Answer: Photoplethysmography
Q3 What is the name of the sensor that measures your pulse?
Answer: PPG
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