4. Ion Air Pro 3
The Air Pro 3 continues to push Ion's action cam portfolio onwards and upwards. At only 142 grams it's barely noticeable when you have it on you, though it will need to attach it to a helmet mount or something similar because of the shape. If you like the sound of 60FPS 1080p video, 12MP stills, a super-wide 160 degree lens and real-time shoot and share via the Ion WiFi Pod at the back, this might be the camera for you.Price: £350 | Ion