At left, green LED lights from the Fitbit Blaze fitness tracker; at right are the red LED sensors for the Fitbit smartwatch
The leaked image shows that Fitbit will be using two red LED sensors on the back of its timepiece. That compares with the use of two green sensors on the Fitbit Blaze fitness tracker. Okay, the Blaze uses green lights and the smartwatch will use red lights. Why should you care? Well, there is a big reason why this should matter to you. Red lights have a tendency to penetrate tissues better allowing the sensors to obtain certain metrics that it couldn't read before. This includes blood oxygen levels, which are measured in hospitals using the pulse oximeters that are clipped on a finger. The red lights also help to provide more accurate readings.
The Fitbit smartwatch is rumored to carry a $300 price tag and will run for as many as four days without needing a charge. It is expected to come with GPS, a heart rate monitor, the ability to make mobile payments, and stream music offline from Pandora. The device will be equipped with a very bright color screen, and should be available for purchase this coming holiday season. If you have a certain disease that needs constant monitoring, the Fitbit smartwatch might be the best present that you can buy for yourself this year.
"The red light technology enables optical sensing, particularly for heart rate that’s vastly more accurate than anything else on the market today. That’s one of the biggest complaints about the green light technology. That’s really just scratching the surface of what the red technology can do. Using the longer wavelengths, we can move the signals much deeper inside of the body and we can see more interesting signals."-David Carr, associate strategy director, Frog
Alan, an ardent smartphone enthusiast and a veteran writer at PhoneArena since 2009, has witnessed and chronicled the transformative years of mobile technology. Owning iconic phones from the original iPhone to the iPhone 15 Pro Max, he has seen smartphones evolve into a global phenomenon. Beyond smartphones, Alan has covered the emergence of tablets, smartwatches, and smart speakers.
Recommended Stories
Loading Comments...
COMMENT
All comments need to comply with our
Community Guidelines
Phonearena comments rules
A discussion is a place, where people can voice their opinion, no matter if it
is positive, neutral or negative. However, when posting, one must stay true to the topic, and not just share some
random thoughts, which are not directly related to the matter.
Things that are NOT allowed:
Off-topic talk - you must stick to the subject of discussion
Offensive, hate speech - if you want to say something, say it politely
Spam/Advertisements - these posts are deleted
Multiple accounts - one person can have only one account
Impersonations and offensive nicknames - these accounts get banned
Moderation is done by humans. We try to be as objective as possible and moderate with zero bias. If you think a
post should be moderated - please, report it.
Have a question about the rules or why you have been moderated/limited/banned? Please,
contact us.
Things that are NOT allowed: