Unit came after 3 days with me. IOS app works without problems 6plus with IPhone. Accessories is unbeatable in relation to the original GoPro variant. The picture quality is in FULL HD and very good (subjective perception). I had purchased the equipment after the Review SJCAM compared GoPro 4. For this see also Link [...]. For this price, the unit is clearly a buy recommendation. For this purpose I have purchased a Micro SD card and upgraded the firmware in Step 2. Firmware and instructions are available on [...]. The firmware could be import problems. I would in fact not expected to support and quality of GoPro copy are satisfactory in combination with the price.