Devices

Handsets, messengers, terminals, personal locator units, routers, and antennas. This is the hardware section: what each device does, what it costs to run, and where it falls short. We put hands on this gear before it ships, so the notes here are real ones. Everything including which buttons work with gloves on, which screens wash out in direct sun, which units need a clear view of sky, and which will still hold a call under heavy tree cover.