I am a keen runner and have been for a number of years. Why do people feel the need to carry around all this equipment on a run? reality is all you need is a sports watch that has a stop watch feature. I sometimes listen to music but an iPod shuffle is far better fit for this activity than carrying around a phone, especially so when you consider the size of the iPhone 6 and 6 plus.
Believe it or not, a hell of a lot of pro runners eschew heart rate monitors, GPS and all the rest of that rubbish. Sure, their coaches might ask them to strap on a heart rate monitor once or twice a week to monitor progress on a set workout or in the morning to gauge if they are overtrained but thats about it.
I could tell you with a reasonable degree of accuracy what my HR was at any point on my run just be perceived effort and my rate of breathing. Most other experienced runners could do the same.
Time and distance are the most important metrics and you don't need a lot of equipment to measure them - that 400m track and 10km tempo route is not going to change day to day.
All this technology and equipment can really hamper peoples efforts to get in shape because it adds so much unneeded complexity. People get to the point where they won't go for a workout unless they have a fully charged phone, network access, ear buds, arms strap, fanny bag, salt tablets, pre-workout supplement, gel sachets, gps watch, 2 water bottles, sweat band, friction free socks, sorbothane insoles, motion control shoes etc etc etc.