Savings to the bottom of the bracket is perfectly placed to S5 and allows easy board wireframe however if rapid charging is needed urgently
I use it myself (as the 2 other commentators) with another plug that delivers 2400mA / H and achieves 1500mA / H returned with induction. This allows to keep the load in heavy use and recharge fast enough in normal use
The strength seems to be the RDV, and it is very convenient in everyday life, even in use in landscape mode. A screw on the ball to adjust the force required to change the orientation of such, and the suction cup holds very firmly to the most misted windscreens
Excellent value for money, do not hesitate