What does cell phone model mean?

Nokia in the domestic market of cell phone models are generally divided into nine categories, respectively, 1, 2, 3, 5, 6, 7, 8, 9, N nine series. 1 series and 2 series - for the relatively low-end cell phone, but in recent years the old tree bloomed new flowers, in these two series Nokia designed many new models, of course, for the low-end users. Series 3 - for the personality of the phone, designed for dynamic young people, most of the phone or chic appearance, or unique features, full of personality. One of them, the 3100, once occupied the top spot in the sales charts for a year. 5 series - for entertainment models, most of the phone has a triple defense function, so it is also known as sports models, for men who like sports preferred. But there are also phones designed for music. Series 6 - Nokia's classic business elite, a number of Nokia's classic cell phones from this, powerful, more traditional appearance is the characteristics of this series. This series is also Nokia's signature, with many models, expensive prices, and rolling in profits. Series 7 - for the fashion vanguard models, this series of cell phones mostly lead the fashion trend, and become the wind vane of Nokia cell phones. Series 8 - for the noble and elegant cell phone, appearance and function is the characteristics of this series, such as 8800 once quoted 9999 yuan. Series 9 - personal PDA cell phone, focusing on the management of personal information and information interaction. N series--also known as the special function series, because this series of cell phone models have the English letter N in front of the name, this series of N-Gage and N-Gage QD to game famous, and the new listing of the N70, N90, N91 built-in 2 megapixel digital camera, N91 is even more exaggerated built-in 4GB of hard disk.