At left is the older pouch, which would hold one mobile phone. The new one on the right will hold both of my smartphones: both the company-issued iPhone and the older Android Galaxy S5 that they retired but that I kept as it has applications on it that I can't get on the locked-down iPhone.
You'll notice that this pouch kit was originally designed to be held closed with metal snaps. I did not want those because it looked to me that the only way to snap them shut would require putting too much pressure on the phones inside the pouch. so Lisa removed the male snaps and put in large Velcro straps that you can't see here. The old pouch had only a couple of small Velcro dots that wouldn't stay shut.
Besides being bigger (in order to hold two phones), the new pouch is designed to hand a bit lower on my belt. The way the old pouch hung, I had a tendency to bump it in ways that made it pop open. That wasn't the first time that I'd had the phone pop out; it just was the only time that it landed catastrophically wrong.
The new pouch seems to be working so far, but it needs to wear in a bit until we see how it behaves. Of course, if I would lose weight, there would be less of me hanging over the belt acting as a hazard to my phones.