I had the S3 and just changed over to the RAZR HD, not the MAXX.The S3 will show signal in my house but I could not carry a phone call. I loved everything else about the phone, but signal is most important. Camera is better on the S3. Everything else, I love my RAZR. The HD still has a 2500mA battery. I get almost two days out of it. Love the Moto smart actions. Form factor feels much more study. Anyway, love my phone. Just wanted to give an opinion since I have owned both.