The Sendo M550, released in Q2 of 2003, was a stylish flip phone featuring a 4096-color CSTN screen, dual display layout, and polyphonic ringtones. It targeted users who wanted basic mobile features with added flair. Weighing only 77g, this phone was compact, light, and pocket-friendly.
📋 Sendo M550 Full Specifications
| Category | Details |
|---|---|
| Launch | Announced: Q2 2003 Status: Discontinued |
| Network | GSM 900 / 1800 GPRS: Class 8 EDGE: No |
| Body | 82 x 45 x 20 mm (68 cc) Weight: 77 g SIM: Mini-SIM |
| Display | CSTN, 4096 colors Resolution: 128 x 128 pixels Second display: 96 x 64 pixels |
| Memory | Card slot: No Phonebook: 500 entries Call records: 10 dialed/received/missed |
| Camera | No |
| Sound | Loudspeaker: No Alert: Vibration, downloadable polyphonic ringtones |
| Comms | Bluetooth/WLAN/NFC/Radio: No USB: Not specified |
| Messaging | SMS, EMS |
| Browser | WAP 1.2.1 |
| Games | 3 – Ten Pin, KombatClub, Splat |
| Java | No |
| Features | Predictive text input, dynamic memory, clock, alarm |
| Battery | Removable Li-Ion 750 mAh Standby: 180–400 h Talk time: 2–5 h |
| Colors | Not specified |
Sendo M550 Specs Summary
The Sendo M550 was a compact and aesthetically pleasing flip phone with an external display and basic multimedia support. With polyphonic ringtone support, WAP browser, and a secondary inverse display, it was a step above standard feature phones of the early 2000s.
Despite lacking a camera or Java, its stylish design, lightweight build, and solid battery life made it a popular choice in its time. It remains a nostalgic piece for feature phone collectors and enthusiasts.
