I would pay more for a device that didn't save to the cloud and only saved locally but could still give you nice graphs and whatnot in an old-fashioned desktop program. They can have a website that you can upload to that makes things visible to your friends, as long as it's opt-in only. I wouldn't use it because I wouldn't trust it, though.

This sort of thing is as dead as a doornail, unfortunately.

With Garmin watches you don't have to pair it to a phone or set up Wifi. You can just plug it into your computer and download the data. There exist a number of open source tools. I've only used GPXSee for looking at the GPS data, which actually let me see "correct" swimming distance data where Garmin was using some algorithm that didn't make any sense.

I mostly use the web ui but loading the data into one of the open source offline tools is on my to-do list. There's actually some analytics/reports I want to generate that Garmin doesn't provide, so I might end up doing it purely to write some reports.

(Although the peace of mind I would get knowing that I could pull the plug on my Garmin account whenever I want would be nice.)

Though it isn't perfect. When Garmin had the outage last year I unpaired my phone which actually reset some of the configuration I had done on the watch, which was really annoying.