I have an alarm installed in my house, as it's on an independent living scheme. It's one of those systems that uses a control box attached to a landline, plus a pendant or watch. I don't know whether other ME patients use them, but if you do, our local scheme has just sent information about a new system that also works when travelling around the local area. As well as alerting them to a fall or illness, it could potentially also be used if you became a victim of crime in a situation where there was no phone to hand. This is the developer's website, not our local scheme. As it uses GPS, it will probably raise privacy concerns among some people – but to be honest it probably logs less data than the average phone, specially if you tend to forget to switch off Bluetooth when you go out! https://chiptech.uk/chiptech-go/