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Benq-Siemens Q-fi EF71 vs Benq-Siemens EF91

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Benq-Siemens Q-fi EF71

Posted: 02 Oct 2006
Market Status: Released

Benq-Siemens EF91

Posted: 14 Feb 2006
Market Status: Released

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Design
Form factor	Clamshell	Clamshell
Dimensions	3.54 x 1.58 x 0.72 inches (90 x 47 x 18.5 mm)	3.62 x 1.83 x 0.93 inches (92 x 46.5 x 23.5 mm)
Weight	3.50 oz (100 g) the average is 4.4 oz (127 g)	3.52 oz (100 g) the average is 4.4 oz (127 g)
Design features	Soft keys, Music control keys (2)	Soft keys (2)
Side Keys	Left: Volume control, Multimedia control	Left: Volume control; Right: Camera shutter, Other

Display
Resolution	176 x 220 pixels	240 x 320 pixels
Technology Technology - There are two main screen technologies currently used in phones and tablets: LCD and AMOLED. The former usually features a light source and liquid crystals, while the latter is based on organic light-emitting diodes. Newer LCD variations like IPS-LCD and Super-LCD allow for very accurate color reproduction and very wide viewing angles, where no significant image quality loss is observed. Current AMOLED screens differ in such a way that they can exhibit much more saturated colors (sometimes too much) and incredibly high contrast levels, which is due to black color being completely black in AMOLED displays.	TFT	TFT
Colors	262 144	262 144
Additional display Additional display - Shows specs of the phone's additional display	OLED	Color, OLED
Resolution Resolution - Refers to the width and the length od the additional display	128 x 64 pixels	96 x 64 pixels
Colors Colors - Shows the number of colors that the additional display supports		65 536

Battery
Talk time	3.00 hours the average is 11 h (647 min)
Stand-by time	10.6 days (255 hours) the average is 18 days (441 h)
Capacity	750 mAh	1000 mAh
Type	Li - Ion	Li - Ion

Hardware
Built-in storage	0.024 GB	0.032 GB
Storage expansion	microSD	microSD

Camera
Camera	2 megapixels	3 megapixels
Flash		Yes
Features	Digital zoom	Auto focus, Digital zoom
Camcorder	Yes	Yes
Features		Video calling
Front-facing camera		Yes

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Multimedia
Music player
Supported formats	MP3, AAC, WMA	MP3, AAC, eAAC+
Video playback
Supported formats	MPEG4, H.263
Radio	FM

Internet browsing
Browser	Openwave 6.3 Browser
supports	WAP 2.0	WAP 2.0

Technology
GSM	900, 1800, 1900 MHz	900, 1800, 1900 MHz
Data	GPRS	HSDPA 1.8 Mbit/s, UMTS, GPRS
Global Roaming	Yes	Yes

Phone features
Phonebook	Multiple numbers per contact, Picture ID, Ring ID
Organizer	Calendar, Alarm, To-Do, Calculator, Currency converter, Stopwatch, Countdown timer	Calendar, Alarm, To-Do, Calculator
Messaging	SMS, MMS (T9), Predictive text input	SMS, MMS
JAVA JAVA - J2ME (Java 2 Platform, Micro Edition) is a technology that allows programmers to use the Java programming language and related tools to develop programs for mobile wireless information devices such as cellular phones and personal digital assistants (PDAs). J2ME consists of programming specifications and a special virtual machine, the K Virtual Machine, that allows a J2ME-encoded program to run in the mobile device.	Midp 2.0
Games	JAVA downloadable	JAVA downloadable

Connectivity
Bluetooth		1.2
USB	Yes	Yes
Other	Computer sync	Computer sync

Other features
Notifications	Music ringtones (MP3), Polyphonic ringtones (64 voices), Vibration, Phone profiles, Speakerphone	Music ringtones (MP3), Vibration, Speakerphone
Other	Voice dialing, Voice recording

Regulatory Approval
FCC approval FCC approval - The Federal Communications Commission (FCC) is an independent United States government agency, directly responsible to Congress. The FCC was established by the Communications Act of 1934 and is charged with regulating interstate and international communications by radio, television, wire, satellite and cable. The FCC's jurisdiction covers the 50 states, the District of Columbia, and U.S. possessions. Every wireless phone device that that is sold in the U.S. has to be tested and approved for sale by the FCC.
Date approved Date approved - Shows the date when the particular phone is approved by the Federal Communications Commission	07 Jun 2006	25 May 2006
	FCC ID value: JVPEF71 link	FCC ID value: JVPEF91 link
FCC measured SAR FCC measured SAR - The exposure standard for mobile devices employs a unit of measurement known as the Specific Absorption Rate, or SAR. The SAR limit stated in the international guidelines is 2.0 W/ kg*. Tests for SAR are conducted using standard operating positions with the device transmitting at its highest certified power level in all tested frequency bands. Although the SAR is determined at the highest certified power level, the actual SAR of the device while operating can be well below the maximum value.
Head	0.73 W/kg	0.26 W/kg
Measured in	1900 MHz	1900 MHz
Body	0.30 W/kg	0.83 W/kg
Measured in	1900 MHz	1900 MHz

Availability
Officially announced		13 Feb 2006

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- Hardware: Quad core, 1400 MHz, 1024 MB RAM
- Camera 5 megapixels, 1280x720 (720p HD) video
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- Camera 16 megapixels, 1920x1080 (1080p HD) 1280x720 (720p HD) video
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- OS: Android 4.2.2
- Hardware: Dual core, 1200 MHz, 1024 MB RAM
- Display: 4.0 inches, 480 x 800 pixels, Capacitive Touchscreen
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- Hardware: Dual core, 1500 MHz, Krait, 1024 MB RAM
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- Hardware: Single core, 1000 MHz, ARM Cortex-A9, 512 MB RAM
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- Technology: GSM (850 900 1800 1900)
- Data: HSDPA 7.2 Mbit/s HSUPA 5.76 Mbit/s EDGE GPRS