This device is very difficult to pair with an iphone.

The yard/meter button is easy to accidentally hit. Only thing i would change is how easy it is to change from yardage to meters when you have a magnetic case on.

These are a scam, and the people selling them are ripping you off. Decided to go with a higher end nikon.

This device is wildly inaccurate. Very inaccurate, and very noisy. It is completely incapable of actually serving it's only purpose, which is providing a measurement. Inaccurate readings and does not lock easily.