Apple's official webpage tells us that the new phones are thicker and heavier than the 2014 iPhone 6 and iPhone 6 Plus, something which was not mentioned at the show. The iPhone 6S measures 5.44 inches (138.3 mm) height, 2.64 inches (67.1 mm) width and 0.28 inch (7.1 mm) depth. The iPhone 6 is 5.44 inches (138.1 mm) height has 2.64 inches (67.0 mm) width and 0.27 inch (6.9 mm) depth. You can tell that Apple hides the fact that the phone is slightly taller in mm than in Inches but you can miss this as it is really not a big deal.

iPhone 6S weighs 5.04 ounces (143 grams) much more than iPhone 6 4.55 ounces (129 grams). Apple was famous for making its phone thinner and the battery smaller, but this time this didn’t happen. It will be interesting to see if the thicker and heavier phone remained with similar battery inside. We are not sure what makes the phone so much heavier since this is an incremental upgrade.

iPhone 6S Plus is also thicker and heavier. iPhone 6S Plus measures 6.23 inches (158.2 mm) height, 3.07 inches (77.9 mm) width and 0.29 inch (7.3 mm) depth. The iPhone 6 Plus has  6.22 inches (158.1 mm) height, 3.06 inches (77.8 mm) width and 0.28 inch (7.1 mm) depth. This is not that big of a change for the worse.

But the iPhone 6S Plus gained 20grams reaching 6.77 ounces (192 grams) from 6.07 ounces (172 grams) with iPhone 6S.  

The 3D screen touch and 12 megapixel camera were the only new things to the phone, well other than the Apple A9 processor that might be manufactured with FinFet transistors in 14nm Samsung's factories.  This is something we will have to wait to see when FixIt get its hands on the phone.

Traditionally the S in iPhone brand stands for Slightly better and this phone is not an exception. It will be well received because Apple fans will  think that their supreme leader has invented the 12 megapixel camera, f /2.2 and image sensor, 4K, advanced LTE.  It didn't all these are technologies we have seen with many Android based phones.