We venture far beyond the reaches of cell service with Garmin's inReach Messenger offering us seamless connection with family and friends to give them peace of mind while we're out clearing our own. We preset messages and check-in times, so we can spend more time exploring and less time staring at a screen. This little device does more than text, it gives us weather updates and TracBack routing to keep us prepared and on course. Compact satellite communicator to stay in touch when out of rangeDurable housing is impact resistant and submersible up to 1 meterPreset messages and send confirmations for quick, reliable check-insLong battery life gives up to 46 days of use between chargesTracBack feature to retrace your steps if you get turned aroundInteractive SOS to quickly get in-touch with emergency centerIncludes inReach Messenger, Type A to Type C USB cable, and documentationPlease see size chart for complete list of technical featuresDigital Compassyes, GPS compass while movingTechnical Featuressee size chartOperating SystemGarmin Messenger app, Bluetooth, ANT+Battery Typerechargeable lithium ionBattery Life[message/location sent every 30min] (full sky view) 46 days, (moderate tree cover) 23 days, [message/location sent every 10min] (full sky view) 28 days, (moderate tree cover) 14 days, [message/location sent every 2min] (full sky view) 6 days, (moderate tree cover) 3 days, [powered off] 1 yearDimensions3.1 x 2.5 x 0.9inClaimed Weight4ozManufacturer Warranty1 yearActivitybackpacking, backcountry skiing, backcountry snowboarding, backcountry snowshoeing, backcountry riding, cross country, nordic touring, mountaineering, climbingSubmersibleIPX7 (submersible up to 1m for 30min)Face Size1 x 0.43in, 1.08in diagonal