ZOLEO is a handheld Iridium satellite messenger the reviewer tested on a flight to Catalina (2022-06-24), demonstrating texting at ~10,500 ft, Bluetooth pairing to a phone, SOS via GEOS (works without a phone), check‑in/GPS sharing, Location Share Plus tracking, basic Dark Sky weather, and prioritized Wi‑Fi/cell routing to conserve satellite message usage; plans are $20–$50/month.