BenQ-Siemens
Side-by-side technical data
BenQ-Siemens P51 vs BenQ-Siemens E81
Compare up to four phones using typed, normalized technical data. Measurements stay numeric, capabilities stay boolean, and options stay comparable.
The verdict
Neither runs away with it: each wins something.
Which one is for you?
BenQ-Siemens P51, if you care about…
- Battery Capacity
- 1,370 mAh
- against 900 mAh
- RAM Capacity
- 64 MB
- against 16 MB
- Maximum Storage Capacity
- 192 MB
- against 16 MB
- Usable Surface
- 33.2 %
- against 21.9 %
BenQ-Siemens E81, if you care about…
- Display Pixel Density
- 157 ppi
- against 143 ppi
- Weight
- 90 g
- against 170 g
- Body Thickness
- 16.7 mm
- against 20 mm
- Talk time
- 5 h
- against 4 h
Specification comparison
Battery
| Specification | P51 | E81 |
|---|---|---|
| Battery Efficiency Rating | — | — |
| Battery Capacity | 1,370 mAh Best value | 900 mAh |
| Battery Type | Li-Ion | Li-Ion |
| Fast Charge Power | — | — |
| Battery Features | — | — |
| Battery Endurance | — | — |
| Wireless charging power | — | — |
| Charge cycles | — | — |
| Talk time | 4 h | 5 h Best value |
| Standby time | 150 h | 300 h Best value |
| Music playback time | — | — |
Design
| Specification | P51 | E81 |
|---|---|---|
| Body Colors | — | Black |
| Body Thickness | 20 mm | 16.7 mm Best value |
| Body Width | 60 mm | 46.7 mm |
| Body Height | 122 mm | 99.8 mm |
| Weight | 170 g | 90 g Best value |
| Usable Surface | 33.2 % Best value | 21.9 % |
| Body Materials | — | — |
| Resistance Features | — | — |
| Waterproof Depth | — | — |
| Drop Resistance Class | — | — |
| Repairability Class | — | — |
| Foldable | No | No |
| Rugged Build | No | No |
| Drop Test Count | — | — |
| Unfolded thickness | 20 mm | — |
| QWERTY keyboard | Yes | — |
Performance
| Specification | P51 | E81 |
|---|---|---|
| Processor Model | — | — |
| Processor Process Size | — | — |
| Graphics GPU | — | — |
| Storage Type | — | — |
| Maximum CPU Clock | 0.416 GHz | — |
| Maximum Storage Capacity | 192 MB Best value | 16 MB |
| AnTuTu Score | — | — |
| Geekbench 6 Single-Core | — | — |
| Geekbench 6 Multi-Core | — | — |
| CPU Description | 32-bit Intel XScale PXA272 416 MHz | — |
| Processor Type | — | — |
| 64-Bit Processor | — | — |
| RAM Capacity | 64 MB Best value | 16 MB |
| RAM Type | — | — |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | — |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | — | — |
Sensors
| Specification | P51 | E81 |
|---|---|---|
| Fingerprint Sensor Placement | — | — |
Display
| Specification | P51 | E81 |
|---|---|---|
| Display Aspect Ratio | 4:3 | 4:5 |
| Peak Display Brightness | — | — |
| Display Technology | TFT LCD | TFT LCD |
| Display Diagonal | 2.8″ Best value | 1.8″ |
| Display Horizontal Resolution | 240 px Best value | 176 px |
| Display Vertical Resolution | 320 px Best value | 220 px |
| Display Pixel Density | 143 ppi | 157 ppi Best value |
| Display Refresh Rate | — | — |
| Touch Sampling Rate | — | — |
| Display Contrast Ratio | — | — |
| Display Features | Resistive Touchscreen, Touchscreen | — |
| Integrated Projector | No | No |
| Projector Brightness | — | — |
| Projector Horizontal Resolution | — | — |
| Projector Vertical Resolution | — | — |
| Cover display diagonal | — | — |
| Cover display refresh rate | — | — |
| Cover display peak brightness | — | — |
| Display colors | 256K colors | 256K colors |
Sensor
| Specification | P51 | E81 |
|---|---|---|
| Sensor Features | — | — |
Software
| Specification | P51 | E81 |
|---|---|---|
| Operating System | Windows Mobile 5.0 | — |
| OS Family | Windows Mobile | — |
| OS Version | 5 | — |
| OS Update Support | — | — |
| Direct OS Updates | — | — |
| Google Services | — | — |
| Web browser | WAP 2.0/xHTML, HTML Best value | WAP 2.0/xHTML |
| Java (J2ME) | — | Yes |
Connectivity
| Specification | P51 | E81 |
|---|---|---|
| SIM Configurations | Mini-SIM | Mini-SIM |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900 | 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS 2100 |
| Cellular Technologies | GSM, GPRS | GSM, UMTS, 3G Best value |
| Wi-Fi Standards | Wi-Fi 802.11b/g | — |
| Wi-Fi Features | VoIP over WLAN | — |
| Bluetooth Version | Bluetooth 1.2 | — |
| Bluetooth Profiles | A2DP | — |
| Navigation Systems | GPS | — |
| Connectivity Features | MP3 Player | MP3 Player, USB 2.0 |
| USB Version | Proprietary | USB 2.0 |
| SAR American Head | — | — |
| SAR American Body | — | — |
| SAR (EU) head | — | — |
| SAR (EU) body | — | — |
| Messaging | — | SMS, MMS, Email |
Audio
| Specification | P51 | E81 |
|---|---|---|
| Microphone Count | — | — |
| Audio Features | A2DP, Loudspeaker | — |
| Alert types | Vibration, Downloadable ringtones, Polyphonic ringtones, MP3 ringtones | Vibration, Downloadable ringtones, Polyphonic ringtones, MP3 ringtones |
Technical
| Specification | P51 | E81 |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | P51 | E81 |
|---|---|---|
| Built-in functions | MP3 player, Voice command | MP3 player, Predictive text input, Organizer |
