Fitbit, a company that offers fitness health trackers has recalled around 1.7 million Fitbit smartwatches. This was done as the overheating of lithium-ion batteries in these watches may cause burn hazards. The official website of Fitbit mentions, “This voluntary recall is specific to Fitbit Ionic devices. It does not impact any other Fitbit smartwatches or trackers. If you own a Fitbit Ionic, please stop using your device.”