I know what you mean an about risking expensive stuff! I've had bad things happen, and I just about cried paying for my iPhone, but it's working out. After having too many close calls, I find that the handlebar mount is safer for me than a bag. The trick is to use an extremely secure mount. The Quad Lock is one of the best and super secure. I suppose if I capsize the bike, the phone could get smashed, but that doesn't happen to me often.