iOS Apple Phone Hardware summary

IPhone4

* Released in 2010.

* A4 single-core processor.

* 3.5-inch Retina display (Retina screen), 960x640 pixel resolution.

* Rear-facing camera 5 million megapixels.

* Front-facing camera 300,000 megapixels.

Iphone4s

* Released 2011

* A5 Dual-core processor.

* 3.5-inch, 960x640 pixel resolution.

* Rear-facing camera 8 million megapixels.

* Front-facing camera 300,000.

iphone5/5c

* Released in 2012.

* A6 Dual-core processor.

* 4.0-inch, 1136x640 pixel resolution.

* Rear-facing camera 8 million megapixels.

* Front-facing camera 1.2 million megapixels.

IPhone5S

* Released 2013

* A7 Dual-core processor

* 4.0-inch, 1136x640 pixel resolution

* Rear-facing camera 8 million megapixels

* Front-facing camera 1.2 million megapixels

IPhone6

* Released 2014

* A8 Dual-core processor

* Main Screen Size: 4.7 inch

* Main screen resolution: 1334x750 pixels

* Rear-facing camera: 8 million megapixels

* Front-facing camera: 1.2 million megapixels

* Memory: 1GB

IPhone6 Plus

* Released 2014

* Main screen Size: 5.5 inch

* A8 Dual-core processor

* Main screen resolution: 1920x1080 pixels

* Rear-facing camera: 8 million megapixels

* Front-facing camera: 1.2 million megapixels

* Memory: 1GB

Iphone6s

* Released 2015

* Main Screen Size: 4.7 inch

* A9 Dual-core processor

* Main screen resolution: 1334x750 pixels

* Rear-facing camera: 12 million megapixels

* Front-facing camera: 5 million megapixels

* Memory: 2GB

* Retina HD display with 3D Touch technology

Iphone6s Plus

* Released 2015

* A9 Dual-core processor

* Main screen Size: 5.5 inch

* Main screen resolution: 1920x1080 pixels

* Rear-facing camera: 12 million megapixels

* Front-facing camera: 5 million megapixels

* Memory: 2GB

* Retina HD display with 3D Touch technology

Video resolution related content:

30w=30, meaning that the camera's sensor has such a large total number of pixels.

I'll give you an approximate correspondence table.
30w=640x480, down support
100w=1024x768, down support 720x480, 640x480, etc.
130w=1280x1024 (although exceeding 720P But this is a non-standard HD resolution)
720P=1280x720 (this is the standard HD resolution, the beginner, the number of pixels 920,000)
1080P=1920x1080 (This is the standard full HD, pixel number 2 million or so)

iOS Apple Phone Hardware summary