The Alta really struggles to keep up when I’m at the gym – possibly because of the constant wrist bending when lifting weights and rowing, which Fitbit themselves admit can cause problems.īut during the night, that shouldn’t be an issue. When it came to heavy exercise, however, it was a whole other story. I tested it against my pulse and stopwatch many times during the month, and it was pretty much always spot on. Where heart rate is concerned, the resting heart rate appears very accurate. So to trust the sleep data, it would be helpful if the movement and heart rate appear accurate during the daytime too. The sleep stage breakdown is largely possible because of the ability to combine data from both the movement and constant heart rate sensors. The Alta HR compared to the lightweight Jawbone Up 3 First tests – basic accuracy And that means less risk of not using it because you can’t find the charging cable or you forget to put it back on again! But I thought I’d be happy keeping the slim and sleek Alta HR on for a month, and I was right.Īnother key point is that it has a fantastic battery life – one week with a single charge. Many devices look a bit ugly, are too bulky or worse still, both. And it’s not far off the previous champion of lightweight wearables – the Jawbone UP3.Īnd like the Charge 2, it also looks great on the wrist. With a similar look to the Charge 2, it’s considerably thinner. Having worn many different trackers on my wrist at night, I know that I prefer them to be as comfortable and unobtrusive as possible. Since this is intended to be a look at the new sleep tracking, rather than a detailed review of the Alta HR itself, I’ll cover it only briefly before looking at the Fitbit sleep tracking that’s the same for other devices. And others apply to all of the new Fitbit devices, such as the sleep data on the App. Some of these points apply to the specific device, of course.
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