I'm looking at getting a GPS device to use with my kids for geocaching. We regularly hike, camp, and mountain bike, so I was thinking this could be something fun to add. Do any of you do this? I'm wondering if a device like the below is much better than just using a smart phone with an app. Aside from geocaching, is there anything else people use these for? The boys are 8 and 10 years old, so we aren't doing any off trail back country hiking.

https://www.amazon.com/...B7018KGWV9AKS8JY7SB1