To be honest I'm considering running a line up the wall in my kitchen and getting one of the 16" Echo Show's to replace that extra manual copy.
Would also be nice playing Pandora while cooking, so it's not just a $250 wall calendar ... it has a radio too! Damn it... this is why I don't have one already; I can't seem to sell the idea to the Misses.
I was looking into the Brilliant solution but like you said it's too pricey. Ran into an altenative solution, looks like Amazon recently released device dashboard mode for Fire tablets/tv's and also an Echo device for the wall at a reasonable price. It's a bit large imo - wish it was borderless and not as thick. Tempted to pick one up though. Whatcha think?
Neat. I actually prefer having a physical aux out vs bluetooth. Yes the show # is the size of the screen. So far there's the Show 5, Show 8, and Show 10. They're actually coming out with a 1080p monitor sized wall mountable Show 15 pretty soon. https://www.amazon.com/introducing-echo-show-15-smart-display-with-alexa/dp/B08MQLDFF6/
There is an echo show that is flat and is meant to mount on walls. Could be too big to mount on the door, but maybe you can mount on the wall that is close to the door?
https://www.amazon.com/echo-show-15-smart-display-with-alexa/dp/B08MQLDFF6
Amazon Echo Show 15
Introducing Echo Show 15, Full HD 15.6" smart display for family organization with Alexa https://www.amazon.com/dp/B08MQLDFF6/ref=cm_sw_r_cp_api_glt_i_XCB9A8400RKKHT3SQ418
I also forgot about this.
https://www.amazon.com/introducing-echo-show-15-smart-display-with-alexa/dp/B08MQLDFF6
https://www.amazon.com/introducing-echo-show-15-smart-display-with-alexa/dp/B08MQLDFF6/
You can power it via a PoE power brick
A watch like that would sure be nice, but I don't know of any that do those things...especially with someone not great with technology.
There are some technologies that can help with medication management, emergency response and remote monitoring for falls/activity. Remote cameras can help as well if he won't object to the invasion of privacy. Here are a few ideas:
Medication management: Hero Pill Dispenser or Pill Pack service can help avoid medication errors. Pill pack is cheaper.
Remote monitoring: Lively makes good products for emergency response. The flip and medical alert device were both easy enough for my parents to use. They just press a button and ask for their family or emergency services via a live operator. They also have a smartphone app that you can put on your phone which tells you if they have been active or if they have called for emergency response.
Something like an Amazon echo show can also be helpful for staying in touch daily. Even techno phobic seniors can communicate by voice. The only challenge is getting him internet/wifi first.
Don't obsess on finding the perfect technology. It doesn't exist. Mix in the low-tech...a neighbor that keeps an eye out and regular phone calls are still invaluable.
Hope this helps, and my condolences for the loss of your Grandmother.