The Umidigi A7S is an Android Go phone with a contactless thermometer built in - GSMArena.com news
App Uses Your Body Temperature As Birth Control | Teen Vogue
Amazon.com: SensorPush HT1 Wireless Thermometer/Hygrometer for iPhone/Android. USA Developed and Supported Humidity/Temperature/Dewpoint/VPD Monitor/Logger. Indoor/Outdoor Smart Sensor with Alerts : Patio, Lawn & Garden
The world's first smartphone-based micro-thermometer is here
FISE announces the world's first 4G phone with an integrated thermometer, running on KaiOS - KaiOS