a WAHOO TICKR heart rate monitor. The cheapest of their range at $80 is just a HRM and run tracker.
I have never been one to spend TOO much money on running toys - and $600+ for the latest Garmin watch has always seemed an extravagance to me. I have used a cheapie chest based HRM quite a lot - but what I didn't like about it was that I could barely hear it's "beeps" coming from the associated wrist watch, especially in urban areas - so I had to keep on looking at the watch throughout a run to ensure that my run goals were being met. With my deteriorating age-related hearing and eyesight, something had to give!.
BUT - I have liked the Android RUNKEEPER App - which I used right through C25k with it's ability to programme intervals into any run - and the way in which Mrs Runkeeper whispered in to my ear, as I ran, such things as how long, far, fast I have run and what interval I am just about to start upon. I have always been aware that Mrs Runkeeper would also whisper an even more alluring (to me) run statistic if, as she kept saying, I would only buy a more modern phone with the latest Bluetooth 4LE capability!!! But I wasn't to be seduced that easily - no way was I going to shell out nearly a thousand $$$$'s for the latest Apple or Samsung phone. But then, along came a Chinese company called ZTE who offered me a new phone, with upgraded quad core CPU , lots more memory, later model OS, AND Bluetooth 4LE - for a mere $99.
So - this afternoon - I started to explore my new toy. Wahoo have their own "App" which I installed and set up quite easily - the TICKR connected to the phone and the App via Bluetooth quite easily as well. I set the phone to pass on any results to the Runkeeper App (which it did) . . My next test is to listen to what it has to say to me as I run --- you can select what kind of "average" you wish to know about - eg the average HR of the entire run, given to me at whatever intervals of time that I want them - or the average of the HR since the last time I was given info. Or I can simply not even use the Wahoo App and just connect the HRM directly to Runkeeper.
Oh - the joys of modern technology - and at such a low price, this will keep me out of the pub for quite some time, I should think!