The Apple iPhone 3GS's screen size is 3.5 inches with x pixels resolution.
There is a ARM Cortex-A8 600 MHz processor (CPU).
The phone runs on proprietary operating system firmware.
You can take photos or capture video with the phone's onboard 3+ megapixel camera.
There's no secondary front camera.
Internal memory is 8/16/32 GB. No external card slot is available for expansion.
The phone is powered by a Lithium-Ion (Li-Ion), 1219 mAh battery. Apple's performance ratings are 12.5 days standby time, 720 minutes, 540 minutes Wi-Fi surfing.