For those who value the WiFi capabilities of the current Panasonic cameras, you may have noticed some people saying that the GX7 loses contact with their phone/ Pad. I thought I'd check it out and it's quite interesting. Note, I am not a technical man but as a guide -20dBm is about what you might get next to a really powerful home WiFi router, -50dBm is stronger than -60dBm and the scale is logarithmic so -60dBm is twice as strong as -63dBm. Anyone can shoot me down on this - however, the measurements are absolute and so do represent comparative strength, even if I don't understand what I am doing Since WiFi signals vary, I have averaged these over several samples. Actually, they are quite consistent anyway. At 50cm GM1 -60dBm GH3 -60dBm GX7 -63dBm So, the GX7 output is half that of the GM1 and GH3 At 6m GM1 -72dBm GH3 -72dBm GX7 -86dBm At 6m range, the GX7 is much, much weaker. This explains why, at home, I use WiFi to upload my pictures to my computer with my GM1 and GH3 but have to plug the card into my computer with the GX7 whose WiFi transmission is just too slow. Why this disparity I have no idea.