[Samsung Epic 4G Touch] L A Z I Z A:
I've done a lot of research on armbands for the Epic 4G Touch for a while now, so I think I can provide quality info here.

If you ordered the Arkon armband, I hope you ordered the "XXL Armband" (the one with the green tag) because the other models are a bit too small for the E4GT. The Arkon XXL Armand fits the E4GT almost perfectly. I don't recommend using any type of case. I used the armband with the super thin Diztronic matte black TPU case on the phone once and I wasn't sure I would be able to get it out. Fortunately I did, after a good amount of wiggling and pressure. There is a small inner-pocket slit for if you want to carry I.D. or a single key with you, but even then it kind of makes the armband tight for your phone. I personally would prefer it if it had more room. In regard to having access to the E4GT screen, you're able to use the screen with the phone in the armband without much effort at all, although I don't see myself doing that much since its not very practical, it'll be on my arm most of the time. An improvement I would like to see is to the band part of the armband. It wraps around your arm fine and is quite stretchy, but the problem is that there isn't much of a trim or buffer between the edge of the band and the velcro so when you wrap the band around your arm you have to be sure the band is spot on and lined up or else you'll have velcro rubbing up against your arm. And that can be uncomfortable as you can probably imagine. I should also say that I feel the armband doesn't give the phone enough damage protection if anything should hit it while on my arm as the armband's phone casing is rather thin. If you're interested in buying it, I would recommend buying it from Walmart.com because of the return policy. If you don't like it, you can just return it (which is what I plan on doing, keep reading to know why.) You can also get it shipped fast to your local Walmart or Fedex Kinko's store free of charge (which I did). It arrived on the 2nd business day for me.

Arkon XXL Armband: http://www.walmart.com/ip/Arkon-XXL-Armband-for-4.3-4.6-Smartphones/20434665

Diztronic TPU case: http://www.amazon.com/Diztronic-Flexible-SPH-D710-Cellular-Packaging/dp/B005MGUTW6

Arkon XXL armband youtube video: http://www.youtube.com/watch?v=rOwHA3ZwMC0

There are also generic armbands on eBay that you can buy for about $2.59 and up. I wouldn't recommend a majority of them since they dont really fit the E4GT too well with the seams bulging and the top sticking out, and some don't fit it at all. Workmanship is usually lacking as well. I did find, and like, one specific type of armband on eBay that I prefer over the Arkon XXL armband. It's nothing like the XXL armband in that you cannot access the E4GT screen while it being in the armband, its smaller than the XXL armband, it has a velcro strap that "locks" the phone in place, it has a good sized zippered pocket, and it's strap I feel is more comfortable than the Arkon XXL. There is a good buffer zone between the strap and the velcro so the velcro doesn't rub up against your arm. I also do not recommend using a case on your phone when putting it in this armband, it doesn't really fit. The phone itself fits very snug in the armband, and at first glance I noticed that the top flap to secure the phone is too short. But the flap stretches, and with the right amound of pressure, it can get to be at about the 1/3 or 1/2 mark on the velco tab, which is more than enough in my opinion since the phone is already well in there. I would assume it will stretch more upon further use. I've only recently gotten it. Also, if you have massive guns, you may want to get an armband extender. The band itself doesn't stretch as much as the Arkon XXL armband, which is a good thing. I found that I experienced less downward slippage with this armband than the Arkon XXL. It's workmanship is surprisingly good, considering I bought it for only $2.86 + free shipping from Hong Kong. Shipping took about a week and a half. I personally prefer this armband over the Arkon XXL Armband.

preferred eBay armband: http://www.ebay.com/itm/27080502923...X:IT&_trksid=p3984.m1497.l2649#ht_3050wt_1097

armband extender (assuming this would work with all armbands as it looks to be the case): http://www.amazon.com/Tune-Belt-EX3...AR06/ref=sr_1_1?ie=UTF8&qid=1337566363&sr=8-1

The only other armband I would consider purchasing is the Tune Belt armband, only either model number AB85 or AB86. I haven't purchased either one but I've seen a video on the AB85 with the E4GT on youtube and it looks good. I've posted links below. In the link where the Galaxy Note is put into a Tune Belt armband, I don't know if it is the AB85 model or the AB86 as he does not specify nor does he reply to comments or personal messages about it as of yet. Also I don't know much about the AB86 but Tune Belt advertises it as being for the Galaxy Nexus and other massive phones.

Tune Belt AB85 on Amazon: http://www.amazon.com/gp/product/B0056AN7SQ/ref=oh_o00_s00_i00_details?tag=5336653508-20

Tune Belt AB86 on Amazon: http://www.amazon.com/Tune-Belt-Arm...9B0U/ref=sr_1_1?ie=UTF8&qid=1337567046&sr=8-1

Tune Belt AB85 on official website: http://www.tunebelt.com/ab85

Tune Belt AB86 on official website: http://www.tunebelt.com/ab86

Tune Belt AB85 with E4GT youtube video: http://www.youtube.com/watch?v=rPombMDRCCw

Tune Belt youtube video using Galaxy Note: http://www.youtube.com/watch?v=J1he-GvWzY8

Hope that helps. Good luck!