The Sony CM-DX 2000 is a classic mobile phone from the late 1990s, symbolizing the era's technological capabilities and design preferences. Announced in 1997 and now discontinued, this feature phone showcases a simple layout, practical usage, and functionality typical of that time. Sony, a company well-known for its innovation in electronics, included basic communication features in the CM-DX 2000 to cater to everyday mobile phone needs.
The Sony CM-DX 2000 operates solely on GSM technology, specifically the GSM 900 band. During its time, GSM was the standard in mobile networks, providing sufficient coverage for calls and text messaging. The phone does not support GPRS or EDGE, which were later developments in mobile data transmission technology. As such, the focus of the CM-DX 2000 was primarily on voice communication.
With dimensions of 147 x 46 x 27 mm and a volume of 155 cc, the Sony CM-DX 2000 has a compact and sturdy form typical for mobile phones from the 1990s. The device weighs 185 grams, offering a substantial feel in the hand without being overly cumbersome. The use of a Mini-SIM further emphasizes its status as an early mobile phone model.
The phone features a monochrome graphic display, which was standard at the time. Although lacking vibrant colors or high resolutions, the display's 97 x 33 pixel resolution supports four lines of 16 characters each, making it functional for reading SMS and navigating through menus. This simplicity in design was pivotal for maximizing battery life and ensuring ease of use.
The Sony CM-DX 2000 comes with very limited memory capabilities compared to modern standards. It can store up to 50 phonebook entries, which is indicative of the simpler needs of users at the time. The phone does not have a card slot for memory expansion, which means users had to manage their phonebook entries judiciously.
Sound features of the CM-DX 2000 include monophonic ringtones. The absence of a loudspeaker and a 3.5mm jack aligns with the minimalistic design of early mobile phones. The phone’s alert system is straightforward, catering to basic call notifications using simple tones.
In terms of communication, the Sony CM-DX 2000 is limited to voice calls and SMS messaging. Connectivity options like WLAN, Bluetooth, Positioning, and USB are absent. During its era, mobile phones were primarily about staying connected through calls and, to a limited extent, text messages, rather than the multipurpose devices we see today.
The feature set of the CM-DX 2000 is minimalistic, lacking sensors, a browser, clock functions, alarm, and games. It is not Java-enabled, which was common for most phones during that time. This simplicity reflects a straightforward user experience designed to cater to the basic communication needs without additional distractions.
The phone is powered by a removable Li-Ion 1800 mAh battery, which was quite substantial for its time. It offers a standby time of 100 hours and a talk time of 10 hours. These specifications highlight the focus on maximizing voice call capabilities and battery efficiency in absence of power-draining features like a color screen or multimedia functions.
The Sony CM-DX 2000 is a representation of mobile technology in the late 1990s. Its specifications highlight the era's focus on durability, essential communication features, and straightforward design. While it may not compete with today's advanced smartphones, it played a crucial role in the evolution of mobile technology, providing a foundation for the complex devices we use today. The CM-DX 2000 remains a nostalgic piece for enthusiasts and serves as a reminder of Sony's contribution to mobile communication history.
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