I wear a belt similar to this for my phone: www.nathansports.com/our-products/runners-
(That's not exactly it, but pretty close.) Some people wear their phones on an armband, but I don't find those comfortable, so I prefer the belt.
If I carry a water bottle, I take this: www.fuelbelt.com/s.nl/it.A/id.881/.f?sc=15
Because there's a strap on the bottle, I don't have to hold it, exactly, so it's very easy. And for the distances I've done so far, that's been plenty of water. As I ramp up my training over the next few months and am doing longer distances, I'll probably get a belt that will hold at least two small bottles.