I worked on Loon for a few years. It's a different use case. At "only" 20km altitude, they are able to provide LTE service direct to standard handsets. Starlink

I worked on Loon for a few years. It's a different use case. At "only" 20km altitude, they are able to provide LTE service direct to standard handsets. Starlink requires a dedicated rooftop terminal with a phased array antenna.