In June 2013, a group of friends launched a weather balloon a few miles from Tuba City, Arizona. The amazing footage was found two years later by an Arizona hiker.

Btw: The GoPro and camcorder were recording video footage, while the phone was taking still images.

Bottom line:
— Max altitude: 98,664 ft (30.1 km)
— Time of flight: 1 hour, 38 minutes