TIGRA SPORTFitClic Neo Magnetic Bike Strap Handlebar/Stem Mount for Smartphones, Black/Orange

Very secure fit.A pain to remove the phone at times.

The mechanism for holding the phone is just fine. Works well and when locked won’t go anywhere.The thing letting this down is the cheap plastic jubilee/hose clip type fastener.Just about stands up to one tightening then is not much use after that. The plastic doesnt take a tight fit any more and as such renders the whole thing useless.I’ve invested in steel hose clips but it’s not pretty. They should take a leaf out of quad locks fastening system.