Does anyone out there want a Sony FDR-AX53 or a GoPro Hero 4 Black?
The Sony was replaced by a Panasonic GH5 and the GoPro by a Sony FDR-X3000.
The Sony will come with 3 batteries and an extra charger. The GoPro comes with a pile of batteries and a charger and a bunch of mounting hardware.
Sony: $600 (New without extra batteries or charger $850)
GoPro: $150 (New without extra batteries or charger $300)