Iam extremely overwhelmed and have done lots of reading on old posts on this forum it seems nearly everyone on this site is very technology savy.... Iam a technology dinosaur and need some help please.
I currently do all my bike workouts at the local gym on an upright exercise bike which has a screen that gives power, time, cadence etc this works very well for me and is very simple to use you just start pedaling and everything is displayed.

The local gym is closing and unless i can try and buy one of these exercise bikes when they close iam going to have to either

A.) Buy an exercise bike like the ones the gym uses for my home or
b.) Buy some sort of trainer device to use with my bike (I have never used any type of trainer in my life)

It seems there is a million types of trainers out there. From what i can tell a lot of them need to be hooked up to a computer (PC) to be used ie the trainer road and computer trainer and wahoo. I dont have a computer to do this nor am I interested in doing this i dont need a screen or anything to tell me anything. All i need is like the bike at the gym something that desplays current power, time, and at the end of the session shows average power?

Is there a trainer that i can hook my bike up to that will display these 3 things on like a small kinda screen that you would use on a bike to show your speed etc? I do all my intervals etc with these 3 parameters and that is all i need no other fancy things hooked up to a computer. Can someone please simplfly all of this. My first priority is to try and buy the exercise bike from the gym second hand when they sell it and use that at home.

thanks