The Samsung F400's screen size is 2.2 inches with x pixels resolution.
There is a 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 is also a secondary front facing camera useful for video chat and self portraits.
Internal memory is 24 MB. An external, MicroSD (up to 8 GB) expansion slot is available for increased storage capacity.
The phone is powered by a Lithium-Ion (Li-Ion), 960 mAh battery. Samsung's performance ratings are 25 days standby time.