Differences between an iPhone 3, 4 and 5?

Differences between an iPhone 3, 4 and 5?

IPhone 3:
- 2mp camera
-updated only to iOS 4.3

iPhone 4:
-5 megapixel camera
-720p video recording
- supports to iOS 6 and beyond
- A 4 Chip (speed)
-only available in 8GB unless bought off of Ebay or Amazon

iPhone 4S
- Has Siri (Voice assistant
- 1080p video recording
-A5 processor
-Available in 16 or 32 GB models (unless bought off of Ebay or Amazon)

iPhone 5:
-A6 Processor Chip
-uses a nano sim as compared to a Micro sim (which is used in the iPhone 4S and iPhone 4)
-720p front facing camera
-take photos while recording video
-Uses a new Lightning cable (that won't allow older adapters/accessories that were made for iPhone 4 and iPhone 4S which are the 30 pin connectors to be used)
-Available in 16GB 32 GB and 64 GB capacities