Samsung Galaxy Watch LTE ownership review, tips and tricks

Why did I buy Samsung Galaxy Watch LTE I am a techie and an amateur runner. What that means is that after an hour or two's run, I *need* to spend next 15 mins going through the data such as heart rate, speeds, elevation and splits. I do not like to carry my mobile with me during the run as any good new smartphone is 180gm+ in weight and is bulky to carry. Initially, I was using Fitbit Ionic watch which had great fitness related features with built in GPS. But, once in a while, I needed the phone connectivity during the run. Along came Samsung galaxy watch LTE with eSIM. I also saw 2 Indian operators Jio and Airtel announced that they would support it in their networks. I practically ordered it on the same day it was launched in India. I bought 42mm even though the 46mm had almost 40% bigger battery as bulkiness was a concern. Now after few months of usage, here is my ownership review. Also, I would like to share some tips regarding battery saving and mobile service act...