In 2022, Apple Watch Series 8 introduced a key new feature—a body temperature sensor. This was the only noticeable upgrade from the previous Series 7, sparking great interest among users. However, instead of a dedicated temperature-measuring app like the ECG tool, users were left disappointed. Apple restricted the function to collecting data exclusively for women’s reproductive health analysis.
But resourceful users found a workaround. By enabling temperature monitoring during sleep, the watch automatically records temperature data. After syncing with an iPhone, the information becomes available in the Health app for all Apple Watch owners, regardless of gender. This hidden capability turned the sensor into a universal tool, bypassing Apple’s initial restrictions. So, lets find out if you should get such a gadget not only for getting notifications from https://22bet.com/ but also to measure your temperature.
Which Apple Watch Models Can Measure Temperature?
Not all Apple Watch models support temperature measurement. Here’s a full list of compatible devices:
- Apple Watch Series 8
- Apple Watch Series 9
- Apple Watch Series 10
- Apple Watch Ultra (1st and 2nd generation)
The popular Apple Watch SE (2nd generation) was left out, despite its affordability and high demand. In supported models, two temperature sensors are used:
- Internal sensor – contacts the wrist and measures body temperature.
- External sensor – analyzes ambient temperature to adjust readings.
How It Works
Temperature measurement is only possible during sleep. The watch records wrist temperature every five seconds, tracking deviations from the baseline. These readings are stored in the Health app on an iPhone, but with some limitations:
- The graph displays a baseline value without exact numbers.
- Deviations appear as spikes up or down, showing the difference from the baseline.
Even without precise numbers, users can monitor temperature trends over time. The key is to wear the watch overnight (which can be uncomfortable for some users)! This data is also integrated into the Vitals app, available with watchOS 11. It has already proven effective, occasionally detecting illnesses days before symptoms appear by analyzing such deviations.
How to Enable Temperature Measurement on Apple Watch
By default, temperature tracking is turned off, so you’ll need to activate it manually:
- On your iPhone, open the Watch app.
- Go to Privacy & Security settings.
- Toggle on Wrist Temperature.
However, don’t expect immediate results. Apple Watch needs several nights of sleep tracking to determine your baseline temperature.
- Some users see data within five days, while others wait up to two weeks.
- Wearing the watch overnight is necessary—make sure to charge it before bed.
How to View Temperature Data on iPhone
Once the watch collects enough data, follow these steps to check it:
- Open the Health app on your iPhone.
- Go to the Browse tab.
- Select Body Measurements.
- Scroll down to find Wrist Temperature.
Hidden Thermometer in Apple Watch
Although the Health app doesn’t display exact temperatures, there’s a trick to see them:
- Open Health and go to Wrist Temperature.
- Scroll down and tap Show All Data.
- Select any entry to view details.
The first line will show your temperature for that night, accurate to two decimal places. You can also check this directly on your Apple Watch:
- Open the Health app on your watch.
- Go to Body Measurements.
- Select Wrist Temperature.
Here, you’ll immediately see your latest readings with temperature and date.
No Real-Time Temperature Display—Why?
Despite three generations of temperature-enabled Apple Watches, Apple still doesn’t allow real-time temperature checks. While it would be useful—even with some margin of error—this restriction likely exists to prevent misinterpretation and self-diagnosis. But maybe one day Apple will launch such a feature and ease their fans’ lives.