Building a motorcycle computer

I am looking to dive into a rock pi for a motorcycle computer. The OS I am looking to run is android. My current setup is with an odroid C4. I am having some issues with the odroid so I’m thinking about swapping it out. It’s currently running android 9.

Here is a quick video.

What I’m looking for is stable and fast boot times. I was looking at the rock pi 4’s but there a few different ones rk3399 vs rk3399-t etc.
WiFi and Bluetooth are a must and I assume emmc is a must if I’m looking for fast boot.

What is everyone’s thought on what version of 4 I should look at?