Airo Bracelet Makes Sure You're Not Pigging Out

There are dozens of fitness activity trackers that can count daily steps, tally miles traveled, show day-by-day physical activity, count burned calories, collect sleep data, and more. But newcomer Airo hopes to be the one band to rule them all.

The minimalist bracelet keeps an eye on your stress levels, sleep, and exercise, as well as nutrition, by tracking calories consumed, not just those burned.

Airo eliminates the need to take pictures of food or manually calculate daily calories. Instead, a built-in spectrometer shines miniscule LED lights into the bloodstream to monitor the rate of caloric consumption.

Based on that caloric absorption, the bracelet can also detect the levels of carbohydrates, fats, and protein in various foods.

"It uses this information to also determine the nutritional value of what you've consumed," a spokeswoman said.

Of course, healthy eating can't do all of the work. Exercise is imperative to staying fit, and Airo knows where and how you work out — at the gym lifting weights, running in the park, doing yoga at home. By tracking your heart rate, the device also calculates the number of calories your body burns throughout the day.

Made from an aluminum body with a bead-blasted finish, Airo looks like it was molded out of an Apple laptop; the inside is coated in a soft hypoallergenic material. Following next year's debut, the bracelet will be available in small, medium, and large, in both a light and dark finish.

Airo is more than a stylish accessory, though. It also helps wearers stay ahead of stress. Using the same heart-rate technology, the tracker measures the autonomic nervous system to recognize the smallest fluctuations in stress levels. Any spike in stress will alert the device, which in turn warns the wearer via a vibration. It also provides mobile push notifications with exercise suggestions to help stay calm.

Even when you're too worn out to worry about health, the Airo continues working. As you rest, it tracks your hours of deep sleep, then wakes you at the optimum time of the day (whether or not that's when you most prefer to get up).

Airo is available to pre-order now. Though not running a crowdfunding campaign, the company is charging upfront and will offer refunds at any time before Airo ships.

The first batch of Airo is expected to begin shipping next fall. Priced at $149 (with an extra $10 delivery charge), a bit pricier than the $130 Fitbit Force, but the same as the upcoming Nike+ FuelBand SE.

Pair your Airo with any iOS or Android device to receive real-time notifications and daily updates about which areas you're handling well (perhaps nutrition and stress) and those you need to work on (get more sleep and exercise more often).

Check out the Airo and its capabilities in the video below.

For more, see PCMag's list of the best activity trackers for fitness.