In 2018, what are some affordable and easy-to-use electronic gadgets that are appropriate for and useful to elderly people?

I am a senior citizen. I am an older person. I’m not sure what you mean by affordable, but my generation invented cell phones, digital TV, personal computers and laptops, space travel, and Star Trek and Star Wars.
I am answering this question to you on Quora by dictating into my Google pixel 2 XL phone. I am sitting at my computer desk where I have a 3 terabyte drive running Fedora Linux. I suppose if I get to the point where I can’t drive anymore I could always hail an Uber ride to anywhere I want to go.
We older people aren’t as hopeless as you might think.