I have a Huawei Activa 4G and it's a snug fit without taking off it's added external case. I'm sure it would be even better without the added bulk of the case, but I like the fit well enough that I'll leave it on. It stays inside, even upside down, without the strap secured over the top. Maxpedition makes a superb product. Hopefully, they'll bring all production to the USA one day.