Web Desk: Smart watches that can count your steps, measure how many calories you’ve burned and also your cardiovascular health.
But Chinese put their fitness trackers on toilet paper to detect heartbeat. Well, that’s exactly what Chinese internet users are discovering.
According to Chinese tect site Abacus, people in the country have taken the trend viral lately after someone discovered the ‘Xiaomi Mi Band 3’ displaying a heart rate when wrapped around a toilet roll. Since then their social media flooded with others trying it out on various cylindrical objects like bottles, cans, stuffed animal limbs. And it worked every time, even they don’t have heart.
The phenomenon has also been confirmed with Apple Watch series 4. Toilet rolls show a heart rate of 81 BPM, a banana registers 77 BPM, and a coffee mug 72 BPM.
Smartwatches shine a green light on your wrist when worn, Blood absorbs green light, meaning that the absorption is faster when your heart rate increase.
The thing is, some objects can reflect light shone on them and confusing the sensors on these smartwatches. Some amount of light is getting absorbed, which is what indicates a fake heart rate.