That’s right, iPhone SE maybe the latest iPhone from Apple but it has mix the design of the old iPhone 5s with the hardware of the iPhone 6s.
MacWorld says that Apple uses the same “lower contrast ratio and reduced viewing angle” 4″ display that was available on the iPhone 5s, so it might feel like a downgrade if you’ve previously used an iPhone 6s.
The device also comes with the same fingerprint sensor like the 5s, which means that it’s slower and more prone to errors when it comes to granting you access to the phone.
iPhone SE uses the old 1.2-megapixel front-facing camera from the iPhone 6, and not the 5-megapixel unit on the upgraded 6s. There’s no barometer sensor.
http://www.macworld.com/article/3046615/iphone-ipad/iphone-se-first-look-its-2012-all-over-again.html