Network Technology

The Sewon SGD-105 is equipped with basic GSM technology. It operates on 2G bands specifically designed for GSM 900 and 1800 frequencies. This means that the phone is capable of basic voice calls and text messaging services without any data capabilities such as GPRS or EDGE.

Launch Information

This device was announced in the first quarter of 2004 and has since been discontinued. During its time, it represented a segment of feature phones that focused primarily on calling and text messaging functionalities, rather than the more advanced features available in smartphones today.

Physical Dimensions and Build

The device is compact, with its dimensions being 72 x 40 x 23 mm, which makes it easy to carry around. Weighing in at just 80 g, the Sewon SGD-105 is lightweight and portable, offering users the convenience of a travel-friendly device. It supports a Mini-SIM card, which aligns with the typical standards of feature phones during its era.

Display Features

Equipped with a CSTN display capable of showing 256 colors, the Sewon SGD-105 offers a basic visual experience. The screen resolution stands at 128 x 128 pixels, maintaining a 1:1 aspect ratio which was typical for devices at the time. The display is clear enough for simple phone tasks such as dialing and reading text messages.

Memory and Data Storage

While the Sewon SGD-105 does not support external memory cards, it can store up to 100 entries in its phonebook. The call record feature is fairly standard, allowing users to view their last 10 dialed, 10 received, and 10 missed calls. This is compatible with the low-storage design intended for basic communication tasks.

Sound Capabilities

Although it doesn’t come with a loudspeaker, the device supports vibration as an alert type along with polyphonic ringtones that can play up to 16 notes simultaneously. However, it lacks a 3.5mm jack, which means users cannot use standard wired earphones for sound or call purposes.

Communication and Connectivity

The Sewon SGD-105 provides limited connectivity options, with no support for WLAN, Bluetooth, GPS, or Radio. This reflects its design as a straightforward feature phone, intent on focusing strictly on calls and SMS usage rather than multimedia or internet connectivity. USB connectivity is not specified, potentially implying restrictions on data transfer capabilities.

Additional Features

In terms of additional features, the Sewon SGD-105 is limited. It supports SMS for messaging and is available in English and Chinese languages—catering to its international audience. There is no Java support, which means the phone lacks the ability to run mobile Java applications or games, a common limitation of feature phones in this category.

Battery Details

Powered by a removable Li-Ion 550 mAh battery, the Sewon SGD-105 delivers a standby time of up to 110 hours and a talk time of up to 3 hours. This is sufficient for basic daily usage, conforming to the standards of its time when battery life typically outweighs the convenience of constant internet connectivity.

Miscellaneous Info

The phone's color options were not specified, a common trait for many feature phones which typically came in a limited palette focusing on practicality over personal expression. As it stands, the SGD-105 is an example of straightforward, highly functional, yet basic communication technology.