The iphone 6s plus received positive reviews, with critics regarding their improved design, specifications, camera and battery life as being improvement over previous iphone models.iphone 6s plus also panned, including plastic strips on the rear of the device for its antenna that disrupted the otherwise metal exterior, and screen resolution of the standard sized iphone 6s+.the iphone 6s and iphone 6s plus were moved to the mid-range of apple’s iphone lineup when the iphone 7 and iphone 7 plus were relesed in september