While I sympathize, may I ask why you consider security such a concern? The odds of someone having the means (hacking a medical device would not be easy), the motive (why are they targeting you specifically) and the opportunity (they'd need to be in very close proximity to connect wirelessly to your device) seems miniscule. Most crimes are crimes of opportunity and while not impossible it seems unlikely that any non-high-profile individual would be the target of such an attack.

Its more of a principal thing than anything else.

My experiences in healthcare IT/INFOSEC combined with all the blatantant anti-consumer behavior of a lot of these different equipment manufacturers have left a bitter taste in my mouth.

I legitimately dont trust them to vet their bluetooth stack. Or to pick a competant serices comapny to do it either.

I dont trust the judgement of the "accredited" firms that pay for play coach them into many of these certifications that are required to sell/manufacture these devices.

I dont trust the fact I cannot personally see the logic/code that drives the devices decision making process.

I dont trust them on the principal of the move twords smart phone management of everything. Even if the device itself is secure. Im being forced to extract my personal health information and store it all at someloint in plaintext on another device that for all intents and purposes for the average american is horribly insecure and likely is already loaded with carrier spyware. BTW most of the management apps for cgms REQUIRE google play services.(No safteynet check to verify the application itself from what I can tell.)

I dont like the fact that I likely wouldnt be able to repair the device in the event of the manufacturer ceases to exist.

Its not that someone wants to kill me, but the idea of making the likelihood some asshole with a decent antenna and a laptop could send me to the hospital or worse a non 0 chance kind of seems silly to me in general.

TL;DR Preverse incentives mixed with a sense of general apathy twords "doing the right thing" are a big turn off for me.

Lots of good points. Thanks for the insight!

Edit: I'd suggest taking a look at Tidepool Loop which recently got FDA clearance. It might align with your interests/requirements (though still requires a big-brand insulin pump/CGM)

Thank you! Tidepool looks to have some really cool looking features thanks for pointing it out!

Yes. Some models don't have it at all.