PDA's are small handheld devices that combine computing, telephone, Internet and networking features. PDA Phones are PDA's with more phone capabilities. Smartphones' features are usually more oriented towards mobile phone options than the PDA-like features.
Is it possible to plug in a standard 3.5mm headphone jack
Does the phone have a display, usually the case for smartphones
Does the phone have two displays, for example on both sides of the phone
Does the phone have a physical keyboard attached
Allows you to load two SIM cards and therefore have two phone numbers on the phone
Uses satellites to find your position. A-GPS also uses the cellular network, and S-GPS allows the phone to receive both GPS and voice data simultaneously
Whether the phone supports java
The date when this device was launched and first available for purchase
Indicates how much radiation the phone emits with a standard called the "Specific Absoption Rate" as measured by the EU. The lower, the better. In New Zealand and most countries, the maximum allowed rate is 2.0 W/kg.
Rear camera resolution
Still image resolution
Digital still camera
Still image format
Power & Battery
Number of colours
8 bit (256)
Type can be either monochrome or color. TFT is a common color display and others are CSTN, TFT, TFD and OLED.
Internal storage size
Supported memory media
Second generation network (2G) is the most common network type, and includes GSM and GPRS. 2.75G is often of EDGE/EGPRS type. Third generation (3G) includes UMTS (W-CDMA) and is fast (useful for mobile internet).