Motorola Defy Satellite Link. Requires service plan; first-year essentials plan included with no activation fee. Provides advanced 2-way satellite-enabled messaging. Compatible with iOS 14 and Android 10 and later smartphones. Stay in contact wherever you goreliable satellite coverage keeps you firmly on the grid even if you're off the edge of the map, ensuring you're in touch with those who matter. Simply press the check-in button and send your coordinates or a message to your loved ones, giving them peace of mind whilst you do your thing. SOS assist allows you to check in and trigger SOS without a connection; unlimited SOS included with every service plan. The Defy includes one year of SOS service and one year of the essential service plan; SOS messages don't count towards your messaging allowance, 600 mAh Li-Po battery provides up to 4 days of standby battery power, IP68 rated to be dustproof and waterproof at nearly 5 ft. for 30 min., Webbing strap with D-ring attachment, Works up to 75 miles off-shore in coverage map areas.