I'd buy a phone with a keyboard and a touchscreen. I remember an old nokia one i had that had a slide out keyboard. I've had the touchscreen randomly stop working a couple times on my current phone and it gets extremely frustrating fairly quickly. I know you can USB or Bluetooth ones. But something built in would be nice. Your phone suddenly becomes essentially useless when the touchscreen randomly ceases functioning while you're out somewhere and you can't do anything.
How likely is it that the Key 2 will receive security patches past two years? That's the main reason I stick with Samsung or would suggest a Pixel (or an iPhone) right now.
Doesn't Google guarantee updates for Pixel for only 18 months?