Grandma needs a flip phone w/ bluetooth

Just a possible alternative suggestion but if dexterity is part of your Grandma's button issue, you might want to pick up a stylus pen for her. Using a stylus is easier for some elderly people instead of a finger when it involves a (relatively) tiny smartphone touchscreen.

 

I agree with my buddy Svim, OP, get her a stylus, they are cheap at Walmart, a huge pack is around only 10 bucks if you can find something that is super dirt cheap like that.

 

jitterbug phones:
https://www.lively.com/phones/?utm_...yIq4b0TroD8aE1R3A3kaAtZ-EALw_wcB&gclsrc=aw.ds

they have huge displays that is minimal and simple to use. they even have flip phones. i have been considering this for my mom.

 

https://us.alcatelmobile.com/alcatel-goflip-v/

 

Have you looked into Voice Control so Grandma can just talk to her iPhone instead of having to always use the touchscreen?
https://support.apple.com/en-us/HT210417

 

GSMArena "phone finder" search: flip format, any bluetooth, released since 2020 - https://www.gsmarena.com/results.php3?nYearMin=2020&sAvailabilities=1&sFormFactors=2&sBluetooths=1