Reviews of the Samsung Galaxy S7 and S7 edge came out Tuesday, and they were overwhelmingly positive. "What the S7 line does, and does smartly, is it comes back to the basics and does the basics well," remarked Ramon Llamas, a research manager at IDC. Samsung is "hitting the right notes with improved battery life, external storage capacity and the quality of the camera. At the end of the day, you want the phone to work -- and all the bells and whistles don't matter otherwise."