Background: During daily usage of iOS devices, devices experience noticeable thermal issues. This heating not only affects user experience, but may also lead to device performance throttling, shortened battery life, and other problems. We need better understanding and monitoring of device thermal states to optimize application performance and user experience.
Issues Encountered:
Insufficient thermal monitoring capabilities: Unable to obtain real-time accurate temperature data from devices Difficult power consumption analysis: Hard to determine which specific modules or threads cause high power consumption and heating Requested Solutions:
Temperature Monitoring API: Provide accessible device temperature reading interfaces
Thermal Attribution Analysis Capability: During heating events, we expect to receive more detailed power consumption monitoring data, such as CPU, GPU, network, location services, display, high power consumption thread stacks and other information to help developers identify high energy consumption operations
There are some new ways to collect and analyze energy metrics with iOS 26 and Instruments 26. Take a moment to watch Profile and optimize power usage in your app if you haven't already done so. And if after experimenting with the expanded set of capabilities you still have additional suggestions that would make those tools even better for your needs, then please let us know through Feedback Assistant.
— Ed Ford, DTS Engineer
