I use this for my Note 3. Works great.

http://www.amazon.com/gp/product/B00910TQE6/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

Marathon runner... I have an arkon armband.cannot find the exact model but this one looks close.

http://www.amazon.com/gp/aw/d/B00910TQE6?cache=bd4e819b579a130ed9b4f3261c72d5d3&pi=SY200_QL40&qid=1407804054&sr=8-2#ref=mp_s_a_1_2

I also use jaybird blue tooth headphones which I cannot give enough praise.

http://www.amazon.com/Arkon-Running-Jogging-Neoprene-Smartphones/dp/B00910TQE6/ref=sr_1_2?ie=UTF8&qid=1398456245&sr=8-2&keywords=arkon+s5

Just got this one and it fits it no problem with the Otterbox commuter case. Used this same brand with my s3 for a couple years with no issues.