BenQ-Siemens EF91 vs BenQ-Siemens EF81
| Vormgeving | Klepje | Klepje |
| Afmetingen | 92.00 x 46.50 x 23.50 mm | 94.00 x 51.00 x 15.90 mm |
| Gewicht | 100.00 g | 110.00 g |
| Schermgrootte | 2.40" | 2.20" |
| Scherm | Kleurrijk / TFT 256k kleuren 240 x 320 px (2.40") | Kleurrijk / TFT 256k kleuren 240 x 320 px (2.20") 182 ppi |
| Bescherming scherm |   | |
| Extra scherm | Kleurrijk / OLED 64k kleuren 96 x 64 px | Kleurrijk / TFT 256k kleuren 120 x 160 px (1.30") |
| Secundaire bescherming scherm | | |
| Max. gesprekstijd |  | 2G: 270 min. (4.5 h) 3G: 210 min. (3.5 h) |
| Max. standbytijd | | 2G: 300 uur (12.5 dagen) 3G: 250 uur (10.4 dagen) |
| Standaard batterij | Li-Ion 1000 mAhBuy powerbank | Li-Ion 950 mAhBuy powerbank |
| Snel opladen van de batterij | | |
| Draadloos opladen van de batterij | | |
| Geheugen van het telefoonboek | | 1000 contacten |
| Intern geheugen | 32 MB | 64 MB |
| Geheugen kaarten |  microSD | microSD tot 1 GBBuy memory card |
| Processor | - | Qualcomm MSM6250 |
| CPU-klok | - | 180 MHz |
| Touchscreen | | |
| SAR | | 0,37 W/kg |
| Dual SIM | | |
| Andere namen van deze telefoon | - | - |
| GSM standaard | 900 1800 1900 | 900 1800 1900 |
| UMTS standaard (3G) | 2100 | 2100 |
| LTE-standaard | | |
| CDMA standaard | | |
| TD-SCDMA-standaard | | |
| UMA standaard | | |
CAMERA'S - TERUG
| Eerste camera | | |
| Matrix | 3.2 Mpx | 2 Mpx |
| Schermresolutie | 2048x1536 px | 1600x1200 px |
| Optische zoom | | |
| Digitale vergroting | 7x | 5x |
| Flitser | LED | |
| Dual-color LED-flitser | | |
| Videoresolutie | 640x480 px | 176x144 px |
| Videoformaten | | MPEG4, 3GP, H.263, Real video |
| Extra | - | - |
CAMERA'S - VOORKANT
SENSORS
| Accelerometer | | |
| Nabijheid | | |
| Licht sensor | | |
| Magnetometer | | |
| Gyroscoop | | |
| Barometer | | |
| Altimeter | | |
| Gravity sensor | | |
| Hall-effect sensor | | |
| Iris scanner | | |
| Vingerafdrukscanner | | |
| Thermometer | | |
| Hygrometer | | |
Gegevens transmissie
| xHTML | | |
| WAP | v2.0 | v2.0 |
| HSCSD | | |
| HSDPA | | |
| HSUPA | | |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | |
| LTE UP | | |
| WIMAX+ | | |
| GPRS | classe 10 | classe 10 |
| EDGE | | |
| Bluetooth | | |
| HDMI | | |
| WiFi | | |
| WiFi frequenties | | |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi-hotspot | | |
| IrDA | | |
| USB | | v2.0 |
| GPS | | |
| Beidou | | |
| NFC | | |
COMMUNICATIE EN BERICHTEN
| Call waiting | | |
| Video conferentie verbinding | | |
| Redirect | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | 500 contacten |
| EMS | | |
| MMS | | |
| Predictive text | T9 | T9 |
| Swype | | |
| E-mailclient | | POP3, IMAP4, SMTP |
| QWERTY toetsenbord | | |
| RSS reader | | |
Multimedia
| Radio | | |
| MP3 bediening | | |
| Stereo speakers | | |
| Audio Jack | | |
| HD Voice | | |
| Geluidsformaten | | AAC, AAC+, MIDI, RA8, WAV |
| Ringtone polyfoon | 64 voice | 64 voice |
| Beltoon componist | | |
| Spelletjes | | |
| Java | MIDP 2.0 | MIDP 2.0 CLDC 1.1 |
| Videoverbinding | | |
PIM EN EXTRA FUNCTIES
| Klok | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Valuta Converter | | |
| Organizer | | |
| Agenda | | |
| Vliegtuigstand | | |
| SyncML | | |
| Data en fax | | |
| Schermbeveiliging | | |
| Thema's | | |
| Verwisselbare cover | | |
| Voice picking | | |
| Speaker | | |
| Memorecorder | | |
| Trilalarm | | |
