The Garmin GPSMAP 64 st is the newest handheld gps with push buttons available from Garmin. Weighing in at 230 grams with batteries (7 grams more than the 62sc), the 64st comes loaded with TOPO 100k and 8 GB of built-in memory with a usable memory of 5 GB; that is 1.5 GB more than the 62sc after the preloaded maps. You also get 3000 more, a total of 5000, waypoints/favorites/locations. Unfortunately, there is not a version of the 64 model with a camera, but you do get additional features, including the smart notifications and live tracking with Garmin Connect Mobile. If you just cant give up the camera or don't need the preloaded maps, the Garmin GPSMAP 62sc is still a great choice.
Check out our complete Handheld GPS Review to compare all of the models tested.