For those with Jio 4G on their Note20 Ultra using eSIM for phone and Galaxy Watch (LTE model), if you are looking to port to Airtel for 5G, please be mindful of the fact that Airtel doesn't supoort watch cellular data on prepaid SIM.
In order to be able to use same number on phone and watch, you'll have to go for postpaid in Airtel, however Jio works flawlessly with prepaid.
Bluetooth watch users needn't worry about anything.
I wish I knew this earlier hence sharing with you all
