How do fitness tracker smartwatches measure your heart rate?
Have you ever wondered how smartwatches and wrist-based fitness trackers like FutureGo Flex access your heart rate?
According to our researchers, the FutureGo Flex Watch uses a technology known as photoplethysmography, or PPG, to measure heart rate. It essentially tests how much red or green light it can see when looking at the skin on your wrist. Blood is red because it reflects red light and absorbs green light, so when your heart beats, there’s more blood flow in your wrist and more green light absorption. Between heart beats, there’s less absorption of green light.
Using your phone’s camera, the same technology can be applied on-demand. In fact, this technology is quite old-apparently it was first used in the late 1800s. At that time, people would “hold their hand up to a candle in a dark room to see the vascular structure and blood flow”.
This technology is also used in hospitals-if you’ve ever seen a finger or ear clip that measures pulse and blood oxygen levels, it’s using PPG. Because the watch relies on testing the light absorption of your skin to infer your heart rate, there are lots of ways the watch can struggle to get an accurate reading-or any reading at all. Tattoos, for instance, can block the heart rate sensor’s light. Moving your arm around can make it hard to get an accurate reading; our researchers imply that you’ll get more accurate readings from rhythmic movements, such as cycling and running, than you would from a sport like badminton or boxing, where you’re making inconsistent movements. It can also be hard to get an accurate reading when you’re working out in cold weather. But with FutureGo Flex, we are tracking and monitoring your heart 24/7 to keep you safe and sound.
Now let’s get on to the other amazing features of FutureGo Flex.
Aerospace Grade Aluminium Alloy Colours
The advanced aerospace grade aluminium technology is directly related to the aluminium alloys with a light but hard metallic feel with an extremely chic style.
Screen That Sets an Impact
1.32 inch HiRes Display (360*360) that sets a bigger and bolder impact
The ultra large display gives you an experience never like before of viewing your smartwatch’s screen and enjoying its amazing features
IP68 Waterproof for the Water Buddies
Drench in rain or swim with stealth, we have got your back. Never worry about your FutureGo Flex getting damaged in rain because we have got you covered.
15 days in One Go
Charge it up once and you are good to go for a real time experience of 15 days without worry. Go for a long ride, hike, or trip in a remote area; we have got you!
Your sleep is precious and even a slight stress can lead to a disturbance in that. But nothing to worry about, we have got you covered with Sleep Monitoring. Now, track and sleep according to your convenience.
Watch Crafted Only for You!
Go for a hike, get ready for a party, go to the gym, or just for a casual walk, FutureGo Flex is a go getter for all occasions.
Stay tuned for its e-commerce launch!