The last thing you would want to run a bitcoin node on would be a tablet. The blockchain is like 700GB and growing every 10 minutes 😆. You also want your bitcoin node to be running 24/7. Its a bitch when your internet or power cuts out and you have to wait for the blockchain to download and sync. Buy a raspberry pi, 2TB harddrive, 32GB micro SSD card. Flash this operating system called "Umbrel" on to the micro ssd and you will have a bitcoin and lightning node running in no time or buy their umbrel home which saves you the time and effort of putting everything together. There is also Stark9 but I've never used it so I can't really comment. 
https://umbrel.com/umbrelos