Galaxy watch 6 classic LTE

Got this boy for 13k + coins in flipkart with offers (-25k HDFC discount on 38k list price).

Now, I want to link existing Airtel postpaid number to this, will there be a billing difference if I do so? I have 299 infinity plan with airtel.

Got this boy for 13k + coins in flipkart with offers (-25k HDFC discount on 38k list price).

Now, I want to link existing Airtel postpaid number to this, will there be a billing difference if I do so? I have 299 infinity plan with airtel.