Its good to have both the esim and Hotspot. My hotspot battery died while i was out. Luckily I bought an esim from silent.link right before it kicked the can, which saved me being absolutely lost trying to figure out the bus routes. Esim is cheap and you can top up anytime. And lightning payment was the fastest part of the whole process. Its especially great if you can dual sim. Just make sure your phones unlocked from the carrier first (unlike mine 🤦🏻‍♂️). I had to do it all while on the move but I got it up and running pretty quick.