The Iridium satellite network is the most reliable and the only one to offer complete global coverage, including polar regions as its constellation consists of 66 satellites orbiting the earth. Iridium offers military grade equipment, and its Iridium 9555 satellite phone is used extensively by the Canadian and US armies. For matters of life and death the Iridium 9555 or the Iridium 9575 Extreme satellite phone is the only choice.
For price point, the Inmarsat Isatphone Pro offers the best value at $699, including shipping. The airtime is cheaper as well, with minutes from C$1.05-$1.59/ cents per minute.
Do prepaid airtime minutes expire?
Yes. Iridium minutes expire within 6 -24 months of activation, depending on the plan. Inmarsat Isatphone minutes are valid for up to 12 months.
Click here to see the Frost & Sullivan independent report comparing the Iridium 9555 satellite phone against the Inmarsat Isatphone Pro.