Fitbit's new Alta HR tracks heart rate and sleep for a week

[Windows Central]

There's a new Fitbit coming, and it's got a week's worth of battery life, a stylish look, and a heart rate monitor.
Eight months ago, Fitbit brought a small group of reporters to a swanky New York fitness club to show off its latest fitness trackers, the best-selling Charge 2 and waterproof Flex 2. Those sequels have been so successful that, despite disappointing sales results in its most recent quarter, Fitbit felt empowered to produce another iterative product, the Alta HR.

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