Fitbit accuracy questioned in lawsuit | CNN

Technology of tomorrow —

Most people feel anxious when their smartphone is out of arm's reach. But what if it was actually on your arm, woven into the very fabric of your sweater? Sportswear designers Under Armour are already on the case. They recently unveiled their touchscreen t-shirt concept, Armour39, which measures your athletic performance.

It's just one recent example of how design, technology and science are coming together to form a new generation of consumer products that look set to shape the future.

Courtesy Under Armour

Marcus Fairs, editor-in-chief of design magazine <a href="http://www.dezeen.com/" target="_blank" target="_blank">Dezeen</a>, says that wearable technology will be a defining feature of future design. Fairs points to the likes of <a href="http://www.mc10inc.com/company-information/about-us/" target="_blank" target="_blank">MC10</a>, whose founder Professor John Rogers designed the stretchable circuit, and whose mission statement is to "extend human capabilities by making high-performance electronics virtually invisible, conformal, and wearable". <br /><br />The Biostamp is a digital temporary tattoo that stretches and twists seamlessly with our bodies to monitor our health.

The Biostamp tattoo —

Marcus Fairs, editor-in-chief of design magazine Dezeen, says that wearable technology will be a defining feature of future design. Fairs points to the likes of MC10, whose founder Professor John Rogers designed the stretchable circuit, and whose mission statement is to "extend human capabilities by making high-performance electronics virtually invisible, conformal, and wearable".

The Biostamp is a digital temporary tattoo that stretches and twists seamlessly with our bodies to monitor our health.

Courtesy MC10

While augmented reality devices such as Google Glass may for now be the preserve of <a href="http://whitemenwearinggoogleglass.tumblr.com/" target="_blank" target="_blank">middle-aged men</a> from Silicon Valley, Fairs is convinced this sort of technology will be the norm in years to come. <br /><br />Among Google's early competitors is the Vuzix smart glasses. <a href="http://www.vuzix.com/consumer/products_m100.html" target="_blank" target="_blank">Vuzix M100</a>, which won the award for "Best of Innovations" in the design and engineering category at CES 2013, sync with apps on your smartphone and display them before your eyes.

Vuzix Smart Glasses —

While augmented reality devices such as Google Glass may for now be the preserve of middle-aged men from Silicon Valley, Fairs is convinced this sort of technology will be the norm in years to come.

Among Google's early competitors is the Vuzix smart glasses. Vuzix M100, which won the award for "Best of Innovations" in the design and engineering category at CES 2013, sync with apps on your smartphone and display them before your eyes.

Courtesy Vuzix

Shenu: Hydrolemic System —

One step on from wearable technology is technology concealed inside the body altogether. In this way, Tokyo designers Takram have devised a solution to a future where drinking water is scarce. The Shenu: Hydrolemic System includes inserts for your nasal cavity to preserve water lost through breathing, a urine condenser and a radiating collar to lower body temperature and abate perspiration.

Courtesy Takram

The emergence of sophisticated 3D-printing tools is also likely to shape consumer technology in unexpected ways, says <a href="http://designmuseum.org/" target="_blank" target="_blank">Design Museum</a> curator Deyan Sudjic. While domestic 3D printers are largely "just making combs and shoehorns" for now, Sudjic says that in the future we will be using them to manufacture much more complex devices. <br /><br />The CubeX Duo, which won "Best Emerging Tech" at the Consumer Electronics Show (CES) this year, is one of the more accessible 3D printers around, designed to be used at home by the average consumer.

The Cubify CubeX Duo —

The emergence of sophisticated 3D-printing tools is also likely to shape consumer technology in unexpected ways, says Design Museum curator Deyan Sudjic. While domestic 3D printers are largely "just making combs and shoehorns" for now, Sudjic says that in the future we will be using them to manufacture much more complex devices.

The CubeX Duo, which won "Best Emerging Tech" at the Consumer Electronics Show (CES) this year, is one of the more accessible 3D printers around, designed to be used at home by the average consumer.

Courtesy Cubify

The FARO Focus3D —

As 3D printing advances, so too will our ability to produce accurate 3D digital models. For those of you whose skills are lacking in the digital design department, the FARO Focus3D is a high-speed laser scanner that can create three dimensional digital models of existing objects, meaning that we can produce exact measurable copies of whatever we want.

Courtesy Faro

Fitbit Flex —

Industrial designer Ross Lovegrove says that the best future designs will be a marriage of science, health and manufacturing, the likes of which we are beginning to see with relatively low-cost and stylish health monitoring devices.

Award-winning company Fitbit specializes in products to aid fitness, in particular the Fitbit Flex, a wireless-enabled wearable tracking device that measures your daily movements. Lights on the device indicate how you are stacking up against your personal goals.

Courtesy Fitbit

Lovegrove says that the outwardly unassuming <a href="http://store.nike.com/gb/en_gb/?l=shop,pwp,c-300/hf-4294900330&cp=EUNS_KW_UK_Running_Footwear_Brand&cp=EUNS_KW_UK_Running_Footwear_Brand" target="_blank" target="_blank">Nike Flyknit</a> running shoes are also an indication of the shape of things to come in terms of the design thinking that went into building. <br /><br />"The way they are woven. They put strength and structure where it is required. There are no aglets so they only need to be constructed with one material," he says.

Nike Flyknits —

Lovegrove says that the outwardly unassuming Nike Flyknit running shoes are also an indication of the shape of things to come in terms of the design thinking that went into building.

"The way they are woven. They put strength and structure where it is required. There are no aglets so they only need to be constructed with one material," he says.

Courtesy Nike

Nest Thermostat —

The Nest thermostat is another device that brings together elegant design with super-smart technology. It has the ability to remember, to learn about your lifestyle and adjust the temperature of your environment accordingly. Designed by former king of the iPod Tony Fadell, the thermostat turns down while you are away and can be controlled remotely via your smartphone. It looks cool too.

Courtesy Nest

Of course the next step from learning about your lifestyle is actually <em>feeling</em> it. These headphones from <a href="http://micobyneurowear.com/" target="_blank" target="_blank">Neurowear</a> can read your subconscious mind. Yes, really. With a sensor that measures brainwaves they detect your mood and select music from your playlists to match it.

Mico Headphones —

Of course the next step from learning about your lifestyle is actually feeling it. These headphones from Neurowear can read your subconscious mind. Yes, really. With a sensor that measures brainwaves they detect your mood and select music from your playlists to match it.

Courtesy Neurowear

The Chadwick Oven —

But the future isn't all high-tech gadgetry. Some of the best innovations will still draw heavily on technology from the past. This is modern-day clay oven won the coveted D&AD award earlier this year. Designers have given a 21st century makeover to a product whose age-old function is still the best. By inserting a porous stone disc, it acts in the same way as a traditional wood fired oven.

Courtesy Chadwick

Another update of an ancient yet unbeatable design -- the wheel. Devised by <a href="http://vitaminsdesign.com/projects/folding-wheelchair/" target="_blank" target="_blank">Vitamins design</a>, this is the first ever foldable wheelchair wheel, earning it this year's transport Design of the Year Award at London's Design Museum.

The Morph folding wheel —

Another update of an ancient yet unbeatable design -- the wheel. Devised by Vitamins design, this is the first ever foldable wheelchair wheel, earning it this year's transport Design of the Year Award at London's Design Museum.

Courtesy Vitamins Design

Tomorrow's world: designs that will define our future

Story highlights

A study finds the pulse technology in Fitbit heartbeat trackers was off 20 beats per minute, on average

The study was funded by the legal team behind a lawsuit

Other studies have looked at the accuracy of the devices and found mixed results

CNN —

Your favorite fitness tracker may not be totally accurate, according to a study used in an amended complaint filed Thursday against Fitbit.

The class-action lawsuit, filed earlier this year, argues that the PurePulse technology used in the Fitbit trackers that measure your heart rate doesn’t do it as well as the company’s marketing material promises, a claim Fitbit denies. The technology is used in the more expensive models of the device, the Surge, Blaze and Charge HR.

The lawsuit was filed on behalf of people who bought these Fitbits specially to help them track their heart rate, whether for health reasons or to make sure they are getting the most out of their workouts.

“We are not arguing that it is a medical device. I think that is irrelevant,” said Jonathan Selbin, one of the attorneys who filed the lawsuit. “This is about the way they market it and that they charge a premium for the heart rate monitor, but it’s not giving a meaningful measurement.”

The suit alleges that a defect in the trackers is a safety hazard because people who rely on inaccurate heart rate readings for medical purposes could be at risk. The class-action members say there is no reasonable way for them to kn