ROCKBROS Bike Bag Phone Mount Bag Bicycle Accessories Pouch, EVA Waterproof Bike Phone Holder Top Tube Front Frame Bag Handlebar Bags Compatible Phones Under 6.8”

Very secure and spacious bag
This bag is very sturdy. I sent another one back because it was too small. This one has space for my large glasses case, wallet, keys, and a couple small rain covers. The zipper is sturdy, but a little stiff so far. Not a big problem.

This thing is awesome
Small storage space but good for certain items like wallet and keys. Straps hold well and tighten properly. And phone holds in there well. Makes touch screen a little harder to use but it does work. Very easy to install.

OK for the price
Mine came crushed/accordion folded, it popped back out but left a crease. The attachment system is functional but very cheap, it’s just velcro straps that appear to have been cut to random lengths. The phone holder works, kind of, it does not quite fit the stated maximum phone size without forcing it, it might fit better without the case but who wants to keep taking their case off then putting it back on again every time they get on or off the bike? It came with no instructions of any kind, it was self explanatory but instructions to pit the straps under the bike brake/shift cables would have been helpful because they cannot be cinched up enough to work right without pinching those cables enough that they don’t work right, mounted with the straps going under the cables though works fine.
The good though is that it looks decent and can stretch a bit to hold a bit more than it was really meant to and once mounted stays fairly secure though it does wobble just a bit, also if you are not careful it can rub inside your thighs just a bit, not enough to really be an issue but it’s slightly annoying, not an issue if you are seated properly but some seats, like mine, tend to slide you forward a bit and if it foes it will rub occasionally.
Overall it is good for what you pay for, just don’t expect top quality.

The hook an loop version does not fit large phones
The listing, when I bought it, was for two different bags. One that has a small hood and a zippered phone pocket, and another sleeker version with no hood and a hook and loop closure compartment for the phone. I ordered the latter. The description contradicted itself about the max phone size for the hook and loop version. But that version only fits smaller phones. If you have a 6.8 phone, order the zipper closure model. BTW I asked before buying, and got a lot of responses saying it would fit. I think those people did not know there were two versions of the bag, and were responding about the larger zipper version. This is what can happen when you let customers give customer support instead of the manufacturer.