The upcoming Apple Watch Series 8 will reportedly come with a body temperature sensor that can tell whether you’re running a fever, according to a report from Bloomberg’s Mark Gurman.

Instead of giving you an exact reading, Gurman believes the watch should be able to detect a spike in body temperature, and then encourage you to talk to a doctor or use a thermometer.

Gurman says the body temperature sensor still has to pass internal testing, and if it does, Apple’s expected to incorporate the feature in the Watch Series 8, as well as the rumored “rugged” smartwatch for extreme sports athletes. The upcoming entry-level Apple Watch SE likely won’t have the sensor, though.

Rumors of a new body temperature sensor have been floating around for over a year now. Gurman first pointed out the possibility in June 2021, and later backtracked on his prediction in January of this year. He then reversed course once again in April, noting that we can expect a body temperature sensor “as early as this year.” Supply chain analyst Ming-Chi Kuo also believes the sensor will make its debut later this year.

Previous reports from Gurman and The Wall Street Journal indicate that the body temperature sensor could also be used for fertility tracking — shifts in body temperature could help someone determine when they’re more likely to get pregnant, or predict when they’re going to get their period.

Gurman only mentioned fever detection in his most recent report, so it’s still unclear how (or if) Apple plans on adding cycle-tracking capabilities.

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