I am changed by Sony Z1 for LG G3. Previously I had a Samsung S3. With the Sony Z1 I was actually very happy. What did bother me was the unsatisfactory quality of conversation (with Congstar used) and the short battery life (usually no longer than 1 day). Therefore, a device with removable battery and a longer maturity was needed. The call quality is significantly better on the LG G3. The reception is as good as the Z1 in spite of significantly lower SAR. The battery life has almost doubled with me and the battery can be changed quickly and easily if necessary. So that I can simultaneously charge both batteries, I bought the dock of System-S. Trailer or performance problems I have none. The system runs smoothly and stable. The camera focuses quickly and the panorama assist, an important feature for me usually makes error-free and sharp images. It was important for me yet that the output jack outputs a noise-free sound, as I connect the LG G3 in my car to the Aux input. So far, everything is working fine and in a good volume (the maximum I have not tested, me already is too loud). Conclusion, all my expectations were met: Good battery life, good call quality, good reception (WLAN and LTE), noise-free blades starting, liquid menu navigation, tidy system, bright display, easy and good workmanship, fast and accurate GPS, cheaper original replacement for battery and battery cover, good supply of updates, fast camera
