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BenQ-Siemens EF51 Specifications
Benq
Released 2006, Feb 15
- 95g, 18mm thickness
- Feature phone
- 20MB storage, miniSD slot
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Genze vs community
Genze and community ratings are both shown on a /10 scale. Genze is derived from internal model scores and price rules; community averages come from approved reviews (1–10 per category).
| Category | Genze /10 | Users /10 |
|---|---|---|
| Battery | 1.5 | — |
| Display | 4.8 | — |
| Performance | 2.3 | — |
| Camera | 4.8 | — |
| Body | 5.2 | — |
| Gaming | 3.4 | — |
| Software | 4.4 | — |
| Connectivity | 5.8 | — |
| Sensors | 7.2 | — |
| Software updates | — | — |
| Clean software | — | — |
| Heating | — | — |
| Media | — | — |
Community columns fill in when reviews are approved.
Quick specifications
2.2"
120x128 pixels
1.3MP
No video recorder
870mAh
Score breakdown
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Community ratings
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Full specifications
|
Network
|
Technology | GSM |
|---|---|---|
| 2G bands | GSM 900 / 1800 / 1900 | |
| ??? | GSM 850 / 1800 / 1900 - US version | |
| GPRS | Class 10 | |
| EDGE | No |
|
Launch
|
Announced | 2006, February |
|---|---|---|
| Status | Discontinued |
|
Body
|
Dimensions | 89 x 49 x 18 mm (3.50 x 1.93 x 0.71 in) |
|---|---|---|
| Weight | 95 g (3.35 oz) | |
| SIM | Mini-SIM |
|
Display
|
Type | TFT, 256K colors |
|---|---|---|
| Size | 2.2 inches, 40 x 40 mm, 15.6 cm2 (~35.7% screen-to-body ratio) | |
| Resolution | 120 x 128 pixels (~80 ppi density) |
|
Memory
|
Card slot | miniSD |
|---|---|---|
| Phonebook | Yes, Photo call | |
| Call records | 10 dialed, 10 received, 10 missed calls | |
| Internal | 20MB |
|
Main Camera
|
Single | 1.3 MP |
|---|---|---|
| Video | No |
|
Selfie camera
|
??? | No |
|---|
|
Sound
|
Loudspeaker | No |
|---|---|---|
| Alert types | Vibration; Downloadable polyphonic, MP3 ringtones | |
| 3.5mm jack | No | |
| ??? | 3D surround sound |
|
Comms
|
WLAN | No |
|---|---|---|
| Bluetooth | 1.2, A2DP | |
| Positioning | No | |
| Radio | FM radio | |
| USB | Proprietary |
|
Features
|
Sensors | |
|---|---|---|
| Messaging | SMS, MMS | |
| Browser | WAP 2.0/xHTML | |
| Games | Yes + downloadable | |
| Java | Yes, MIDP 2.0 | |
| ??? | WMA/MP3/AAC/AAC+ player Predictive text input Voice memo Stopwatch Organizer |
|
Battery
|
Type | Removable Li-Ion 870 mAh battery |
|---|---|---|
| Stand-by | Up to 200 h | |
| Talk time | Up to 4 h |
|
Misc
|
Colors | Flashy White, Black |
|---|
BenQ-Siemens EF51 official images
Frequently asked questions
Is BenQ-Siemens EF51 worth buying in 2026?
BenQ-Siemens EF51 is worth considering if its strengths match your priorities. Genze scores it 3.8/10 for its class. Read owner reviews and compare alternatives before you buy.
What is the battery capacity of BenQ-Siemens EF51?
BenQ-Siemens EF51 has a 870 mAh battery. Real-world endurance depends on chipset efficiency, display, and usage.
What display size does BenQ-Siemens EF51 have?
BenQ-Siemens EF51 features a 2.20-inch display. See the Display section for resolution, refresh rate, and panel details.
What is the Genze score for BenQ-Siemens EF51?
Genze rates BenQ-Siemens EF51 3.8/10 based on performance, display, camera, battery, body build, and value versus phones in the same price tier.
Where do these specifications come from?
Specifications are compiled from official manufacturer and carrier sources, reviewed by our editors where possible, and enriched with Genze scores and community feedback. GenZe Rank is not responsible for errors or omissions. Regional variants, firmware updates, and retailer listings may differ from what is shown here—always confirm critical details on the official product page before you buy.
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