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The Siemens M55 was a mobile phone introduced by Siemens in 2003. At the time, it was a high-end phone and one of the first color phones by Siemens, with a 4096 color screen. It was a lower-end counterpart of the Siemens S55, with Bluetooth and infrared connectivity removed. It had a 700mAh battery and no video recorder. Fully charged, it could last around 11 days without charging. There were two models of the M55: one with an orange keyboard and the other with a grey keyboard.
References
Murtazin, Eldar. "Review Siemens M55". mobile-review.com. Retrieved 28 June 2024.