Some would strongly disagree that these phones don't have use. One great example is this: https://rfcx.org/ https://rfcx.org/ These phones are only cheap becau

Some would strongly disagree that these phones don't have use. One great example is this: https://rfcx.org/ https://rfcx.org/ These phones are only cheap because the consumer market is giving them away (high supply). That makes them very good for specific applications and given the presense of complex sensors, battery backup, and small form factor you have a very attractive package for potentially important use cases. That's also just setting asside the idea that someone might want to use these pieces. Some third world countries may benifit from a huge influx of cheap technology every year.