Tried and tested this - in the shower first to test it's waterproofability! PASSED! Kept it under the shower for at least 1 minute and no water got into the cage.
It mounts easily and has a 360 degree turn.
Your device is easily usable whilst n the cage.
I've used on several runs to work now, and it more than takes the odd pothole. Can't say anything for MTB routes.
I've attached two rubber bands just for save keeping - I'd heard that the clip it comes with can spring open.
It is difficult to see the screen when in sunlight - but that's the only downside.
I got mine from
eBay at £27.99
Hope this helps - BinBag