Is a Garmin eTrex good enough for hiking, or do I need a GPSMAP?

Based on the rating consensus, the eTrex line covers core hiking navigation well at a lower price, while GPSMAP models add larger screens, multi-band reception, barometric altimeter and compass sensors, and—on the 'i' models—built-in satellite messaging. Casual hikers often find an eTrex sufficient; serious backcountry users tend to favor GPSMAP for the extra sensors and SOS capability.