Review on Bone Bike Tie Pro Pack: 2-in-1 Bike Phone Charger Mount for iPhone and Galaxy - Stem Mount, Secure Holder, Black by Mike Devine

Road bike use where I use GPS all the time and it eats up my phone battery so extra battery is needed for long bike rides. I use this with a Samsung S9+ and it's a little tight on the phone but fits great. There is a small obstacle with side buttons but I never use them for cycling so who cares. Battery lasts well. Absolutely no problem. On road bikes, the stem is very narrow, so I have to put it on the narrowest hole. It only shifts on really rough roads so I put some friction tape underneath and now it works great. Good value for money.