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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

Will the phone be able to handle water immersion with ease

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.

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

Type can be either monochrome or color. TFT is a common color display and others are CSTN, TFT, TFD and OLED.

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).