alarm with 111 calling 3
https://getelderlygpstrackertips.pinehavenscope.com/posts/how-an-elderly-gps-tracker-supports-senior-safety-and-independence
You set an alarm for when you need to leave, and if you don't hit snooze or turn it off, it automatically calls 111. I had to use it once after a bad fall; the paramedics got there within ten minutes. It's a small peace of mind, especially living alone.