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 body temperature sensor have been floating around for over a year now"

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.

Aside from the body temperature sensor, Gurman says any other changes to the Apple Watch’s hardware “will probably be minor” and also hints at the possibility of an improved display in higher-end models. Gurman predicted last week that the Series 8 processor will have the same level of performance as the previous S7 and S6 chips — we likely won’t see an upgrade until 2023. In terms of health-tracking features on other upcoming devices, Gurman says the new model of AirPods Pro, which is rumored to have a focus on fitness, likely won’t arrive with temperature or heart rate detection this year.