The Arva Evo4 is the new and improved version of the Arva Evo3+, with the primary differences being a slightly quicker processor, an integrated harness with a put-on-to power on system, and an improved multiple burial function, and displays. Overall, this was one of the more intuitive and easiest-to-use beacons in our review, and at $290 it is the least expensive beacon to feature a flagging/marking function and three antennas. Its only downfalls are that it features a little shorter-than-average maximum range, its directional arrows disappeared at 3 meters instead of 2 meters (which we found lead to slower bracketing times for less practiced and more novice users who this beacon is geared toward) and it is one of the large volume beacons.
For a few dollars more, consider our Best Buy winner, the Backcountry Access Tracker 2, which edged out the Evo4 in overall scoring. That said, the Evo4 is still a solid beacon and should remain a consideration for any user on a budget or who's looking to buy their first beacon.