Garmin bought out DeLorme and released their take on this product, now called the Garmin inReach SE+ (pictured above). Below the product comparison table, we show a side-by-side of the new Garmin and previous DeLorme versions of this product. The Delorme model is no longer in production, and is becoming very scarce at online retailers.
The previous DeLorme inReach SE won our Best Buy award because it delivered most of the features of the new Garmin inReach Explorer+ for less. Now that it has transitioned to the Garmin inReach SE+, its list price is $400, a price too high for a Best Buy Award. However, it is less expensive than the Explorer+ and virtually the same product minus the preloaded DeLorme TOPO maps with GPS routing, as well as the built-in digital compass, barometric altimeter, and accelerometer of the Explorer+. If you don't need those features, save $50 and go for the inReach SE+.
This model can be used as a stand-alone device a'la SPOT. You really get what you pay for; less expensive options were far less reliable and much less feature rich in our tests. If you just want an SOS device, consider the ACR ResQlink 406 Personal Locator Beacon, which likely performs better in SOS send mode and does not require a data plan.