Check the phone’s user manual or box
Look in the phone settings for regulatory or safety information
Visit the manufacturer’s official website
Search the model number plus “SAR value”
Check the FCC website for U.S. phones
Check the manufacturer’s SAR compliance page
Use the IMEI or model number to find the exact device SAR
Look for SAR information in the device’s legal or about section
Contact the manufacturer’s customer support
Check your country’s telecom or radiation safety authority website