| Network | Technology |
GSM
|
|---|---|---|
| Launch | Announced | 2005, Q1 |
| Status | Discontinued | |
| Body | Dimensions | 85.5 x 45.1 x 23.5 mm (3.37 x 1.78 x 0.93 in) |
| Weight | 90 g (3.17 oz) | |
| SIM | Mini-SIM | |
| Display | Type | TFT, 256K colors |
| Resolution | 176 x 220 pixels | |
| Features | Second external OLED dispalay, 65K colors (80 x 64 pixels) | |
| Platform | OS | Android 4.4.2 (KitKat) |
| Chipset | Spreadtrum 7731G | |
| CPU | Quad-core 1.2 GHz | |
| GPU | Mali-400 | |
| Memory | Card slot | No |
| Internal | 32MB | |
| Phonebook | Yes | |
| Call records | 20 dialed, 20 received, 20 missed calls | |
| Main Camera | Single | 1.3 MP |
| Features | LED flash | |
| Video | QCIF | |
| Selfie camera | Single | 1.3 MP |
| Features | No | |
| Sound | Loudspeaker | No |
| 3.5mm jack | No | |
| Alert types | Vibration; Downloadable polyphonic, MP3 ringtones | |
| Comms | WLAN | No |
| Bluetooth | 1.2 | |
| Positioning | No | |
| Radio | No | |
| USB | Proprietary | |
| Features | Features |
MP3/AAC+/MP4 player Predictive text input Organizer SyncML vCalendar vCard |
| Messaging | SMS, MMS, EMail | |
| Browser | WAP 2.0/xHTML | |
| Games | Yes + downloadable | |
| Java | Yes, MIDP 2.0 | |
| Battery | Type | Removable Li-Ion 820 mAh battery |
| Misc | Colors | Silver |
| SAR EU | 0.76 W/kg (head) |
Mini Review & Verdict
A smart summary of the Samsung E640
Advantages
- Outstanding multi-day or week-long standby battery longevity between charges
- Tactile physical alphanumeric keypad providing positive-click dialing and messaging
- Tough, drop-resilient casing engineered to withstand everyday accidental drops
- Streamlined, distraction-free mobile experience dedicated strictly to core calling and SMS
Disadvantages
- Restricted to fundamental calling and text functions without modern app store ecosystems
- Compact non-touch display with modest resolution and limited viewing angles
- Rudimentary camera sensor designed only for basic snapshot documentation
Built with a steadfast commitment to straightforward utility and rugged durability, the Samsung E640 stands as a dependable voice and text communicator. Featuring an ergonomic handheld footprint and a tactile physical alphanumeric keypad, the phone ensures swift, error-free dialing and messaging with positive physical key travel.
Operating without the bloated overhead of complex modern operating systems, the device delivers instant, lag-free responsiveness. Speaker acoustics are loud and punchy, ensuring clear voice call intelligibility even in bustling outdoor environments. A rudimentary camera sensor is included for quick, practical snapshots when documenting basic references.
Where this phone truly triumphs is power endurance: sustained by a 820mAh removable battery, it easily delivers multi-day or even week-long standby times between recharges. In summary, the Samsung E640 is an unpretentious, rock-solid communication tool tailored for users seeking absolute reliability, simplicity, and unbeatable standby endurance.
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