Mobilawy

Siemens C25 Full Specs Pricing Pros & Cons

Release Date
1999
Camera
NO
Battery
650mAh
Storage
No card slot
Operating System
Feature phone

Introduction to Siemens C25

The Siemens C25, launched in 1999, marked Siemens' early foray into mobile technology, offering users a compact and basic mobile phone solution during the late 1990s. It symbolizes an era in which mobile communication was transitioning from luxury to necessity. This article will explore the detailed specifications, features, and the broader impact of the Siemens C25 on the mobile phone market.

Design and Build

The Siemens C25 is designed with practical functionality in mind. It has dimensions of 117 x 47 x 27 mm and weighs 135 grams, making it relatively lightweight for its time. Its body design fits comfortably in the palm, characteristic of mobile phones during this era before slimline designs became the norm. Offered in a variety of colors, including Classic Green, Blue, Anthracite, Bright Blue, and Yellow, the C25 allowed for some personalization, a feature appreciated by users.

Display

The phone features an alphanumeric display, which was common for mobile phones of its time, with a resolution capable of displaying 3 lines of 12 characters each. While today's smartphones boast high-resolution, full-color displays, the simplicity of the C25's screen reflects its utilitarian purpose, focused more on functionality than entertainment.

Network and Connectivity

Operating on GSM technology, the Siemens C25 supports GSM 900 and 1800 frequency bands. However, it does not feature GPRS or EDGE capabilities, reflecting the state of mobile connectivity at the time, which primarily focused on voice communication. There is no provision for Bluetooth, WLAN, or USB connectivity, as wireless data transmission and internet access were not yet standard features in mobile phones of this period.

Performance and Software

The Siemens C25 does not boast a high-performance processor or complex operating system. It runs on a feature phone platform designed primarily for making phone calls and sending SMS messages. The absence of Java support, sophisticated apps, or advanced sensors underscores its simplicity and primary function as a communication device rather than an entertainment or productivity tool.

Battery Life

Equipped with a removable NiMH 650 mAh battery, the Siemens C25 offers up to 160 hours of standby time and approximately 300 minutes of talk time. These specifications were competitive during its time, providing sufficient battery life for daily communication needs without frequent recharging, a significant advantage for users who relied on phones for long periods between charges.

Memory and Storage

Reflecting its simplicity, the C25 comes with basic memory capabilities. It does not offer a memory card slot and features a limited phonebook capacity, storing just 8 contacts. Users can also store records of 10 dialed, 10 received, and 10 missed calls. Compared to today’s standards, these features highlight the primary purpose of the C25: basic telephony and contact management.

Audio

The Siemens C25 supports monophonic ringtones with a composer option, allowing users to customize their ringtone to a limited extent. However, it lacks a loudspeaker and a 3.5mm audio jack, meaning it does not support audio playback or headsets, focusing entirely on voice calls through the handset.

Conclusion

The Siemens C25 remains a historical piece in the evolution of mobile technology. While lacking the advanced features found in modern smartphones, it was a crucial step in making mobile communication accessible to a broader audience. Its design and features reflect the priorities of the late 1990s, focusing on size, basic functionality, and reliability. For enthusiasts and collectors, the Siemens C25 is a reminder of the rapid advancements in technology and how far mobile phones have come in just a couple of decades.

Key Features of Siemens C25

  • Announced in 1999, offering classic GSM technology.
  • Compact dimensions of 117 x 47 x 27 mm, making it easy to carry.
  • Lightweight design weighing only 135 g.
  • Supports dual-band GSM 900/1800 for connectivity.
  • Durable Mini-SIM support.
  • Alphanumeric display with a resolution that can show 3 x 12 characters.
  • Offers a basic phonebook with storage for 8 contacts.
  • Efficient call log management with storage for 10 dialed, 10 received, and 10 missed calls.
  • Includes monophonic ringtones with a composer for customization.
  • SMS messaging support, accommodating simple text communication.
  • Available in 5 distinct colors: Classic Green, Blue, Anthracite, Bright Blue, and Yellow.
  • Removable NiMH 650 mAh battery providing 160 hours of standby time and up to 300 minutes of talk time.
  • Supports 20 languages to cater to a diverse user base.

Disadvantages of the Siemens C25

  • Lacks GPRS and EDGE support, limiting mobile data capabilities.
  • Discontinued model, making it difficult to find support or accessories.
  • Minimal memory capacity, with phonebook limited to only 8 entries.
  • No support for expandable storage or card slot.
  • Basic alphanumeric display with very low resolution (3 x 12 characters).
  • No built-in camera feature.
  • No loudspeaker or 3.5mm headphone jack, limiting sound options.
  • Absence of modern connectivity options such as WLAN and Bluetooth.
  • Lacks positioning features like GPS.
  • No built-in radio functionality.
  • Missing essential features such as a clock, alarm, and games.
  • Limited to monophonic ringtones with no advanced audio options.
  • No support for Java applications.
Network
Technology GSM
2G bands GSM 900 / 1800
GPRS No
EDGE No
Launch
Announced 1999
Status Discontinued
Body
Dimensions 117 x 47 x 27 mm, 120 cc (4.61 x 1.85 x 1.06 in)
Weight 135 g (4.76 oz)
SIM Mini-SIM
Display
Type Alphanumeric
Size
Resolution 3 x 12 chars
Memory
Card slot No
Phonebook 8
Call records 10 dialed, 10 received, 10 missed calls
Camera
Sound
Loudspeaker No
Alert types Monophonic ringtones, composer
3.5mm jack No
Comms
WLAN No
Bluetooth No
Positioning No
Radio No
USB
Features
Sensors
Messaging SMS
Browser
Clock No
Alarm No
Games No
Languages 20
Java No
Battery
Type Removable NiMH 650 mAh battery
Stand-by 160 h
Talk time 300 min
Misc
Colors 5 - Classic Green, Blue, Anthracite, Bright Blue, Yellow

All Rights Reserved +13571 Phones © Mobilawy 2025