MacRumors was sent photos that show the thickness, length, and width of the assembled device.
Of most interest has been the thickness of the device, and photos show the iPhone 6s measuring 7.08 mm thick compared to Apple's official measurement of 6.9 mm on the iPhone 6. This is in line with previous rumors claiming that each of the new models will be roughly 0.2 mm thicker than the current iPhones, with the iPhone 6s Plus moving to 7.3 mm thick from 7.1 mm.
The photos also show the device being 138.19 mm tall and 67.68 mm wide. That's slightly larger than the 138.1 mm and 67.0 mm measurements of the iPhone 6.
The minor increase in size is being attributed to the new Force Touch display and Apple's beefing up of the rear shell to prevent bending.
The iPhone 6s is expected to feature Force Touch, a faster LTE chip, a Rose Gold color option, 7000 series aluminum, a 12MP camera, 4K video recording, and more.