Siemens C25: the German 90s phone that never broke
Share
Once upon a time, there was a phone that wouldn't break. The Siemens C25 was that phone. Robust, compact, with a battery that lasted for days — it was the perfect embodiment of German philosophy applied to mobile telephony: build quality first and foremost.
The story of the Siemens C25
Launched in 1997, the Siemens C25 was one of the most popular phones of its era in Central Europe, especially in Germany, Austria, and Switzerland. At a time when Nokia was conquering markets with the 3110 and 3210, Siemens responded with a phone that focused on solidity and reliability.
Technical specifications
- Type: Monoblock bar
- Display: Monochrome
- Connectivity: GSM 900
- Battery: NiMH, up to 150 hours standby, 3 hours talk time
- Weight: 130 grams
- Antenna: Retractable external
- Ringtones: Monophonic
The construction that made it legendary
The C25 had a reinforced plastic body that resisted drops better than many competitors. The retractable antenna was a technical but also aesthetic detail that many users loved. The square, robust shape was unmistakably Siemens.
Collector's value in 2026
A Siemens C25 in good condition is worth between €15 and €50. It is particularly sought after by German and Austrian collectors.
Where to find an original Siemens C25
Infosate has one of the most complete collections of vintage Siemens phones in Europe. All models are verified and functional.