Intel, the world’s biggest chipmaker, has issued a recall for all Basis Peak smartwatches due to thermal problems.

The company warns owners need to stop using the device immediately and return the device as soon as possible.

“We are issuing this safety recall of the Basis Peak watch because the watch can overheat, which could result in burns or blisters on the skin surface,” said Josh Walden Senior Vice President and General Manager, Intel New Technology Group in a prepared statement.

“It is important that you stop using your watch immediately and return it. Although we are stopping support for Basis Peak immediately, you can access your data until December 31, 2016. After that date, the Basis Peak services will be turned off. Once we shut down the services, your watch will no longer be able to sync, which will cause it to stop working,” Walden added.

The Peak was developed by Basis Science, a start-up acquired by Intel in 2014 as it tried to get in on what, at the time, was expected to be a big new market for smartwatches and fitness trackers.

The company sold the Basis Peak between Nov. 2014 and June 2016, and acknowledged that “a small number of customers have reported discomfort, blistering or burns on their wrist under the watch body,” from using the watch.

According to Intel,  the known reported cases involved approximately 0.2% of the watches sold, but they are erring on the side of caution by issuing a total recall for “safety” reasons.