To read the temperature data collected by your Apple Watch Ultra, you need to access it through the associated Health app on your iPhone. The Apple Watch Ultra tracks your wrist temperature overnight.
Your Apple Watch Ultra does not display a real-time, on-demand body temperature reading like a thermometer. Instead, it measures subtle changes in your wrist temperature while you sleep to establish a baseline and track deviations.
Accessing Your Wrist Temperature Data
The primary way to review your wrist temperature data is through the Health app on your paired iPhone. This data is collected automatically while you wear your Apple Watch Ultra to sleep.
Here's how to find your wrist temperature information:
- Open the Health app on your iPhone.
- Tap the Browse tab at the bottom right.
- Scroll down or use the search bar to find the Body Measurements category.
- Tap Body Measurements.
- Tap Wrist Temperature.
In the Wrist Temperature section, you will see a chart displaying your overnight wrist temperature data.
- You can view data by Day (D), Week (W), Month (M), 6 Months (6M), or Year (Y).
- To show sample details, tap a point on the chart. This allows you to see the specific temperature reading for a particular night.
What the Data Shows
The wrist temperature data presented is relative to your established baseline, not an absolute reading. It typically shows the change from your average overnight temperature.
Table: Understanding Wrist Temperature Data
| Metric | Description |
|---|---|
| Baseline | Your average overnight wrist temperature established over time. |
| Temperature Shift | How much your temperature deviated from your baseline on a given night. |
| Chart Display | Visual representation of temperature shifts over chosen time periods (D, W, M, 6M, Y). |
Why Apple Watch Ultra Tracks Wrist Temperature
The wrist temperature sensing feature on the Apple Watch Ultra is used for:
- Advanced Cycle Tracking: Providing retrospective ovulation estimates and improving period predictions for those who menstruate.
- Sleep Analysis: Offering insights into your sleep patterns, as body temperature naturally fluctuates during sleep stages.
- Overall Health Insights: Significant deviations could potentially indicate factors like illness or environmental changes, although the watch is not a medical device and should not be used for diagnosis.
To ensure accurate wrist temperature data collection, make sure:
- Your Apple Watch Ultra is updated to the latest watchOS.
- You wear your watch snugly on your wrist.
- You wear your watch consistently to sleep.
By following the steps in the Health app, you can easily review your wrist temperature data collected by your Apple Watch Ultra and gain insights into your health and sleep patterns.
