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Motorola ROKR Z6m vs Nokia 6255i / 6256i

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Motorola ROKR Z6m Remove phone

phone
User Rating - 6.7

Posted: 27 Mar 2007
Market Status: Released US carrier availability: MetroPCS - Discontinued U.S. Cellular - Discontinued Cricket - Discontinued Alltel - Discontinued

Nokia 6255i / 6256i Remove phone

phone
User Rating - 7.1

Posted: 22 Mar 2004
Market Status: Released US carrier availability: Verizon - Discontinued MetroPCS - Discontinued U.S. Cellular - Discontinued Alltel - Discontinued CellularOne West - Discontinued

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Design
Form factorSliderClamshell 
Dimensions4.15 x 1.79 x 0.63 inches (105.5 x 45.5 x 16.2 mm)3.38 x 1.88 x 1.06 inches (86 x 48 x 27mm) 
Weight3.80 oz (108 g)
the average is 4.4 oz (125 g)		4.40 oz (125 g)
the average is 4.4 oz (125 g)		 
Design featuresNumeric keypad, Soft keys (2)Numeric keypad 
Side KeysLeft: Volume control, Other; Right: Lock/Unlock key, Other  
Display
Resolution240 x 320 pixels128 x 160 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.

TFTTFT 
Colors65 53665 536 
Additional display

Additional display - Shows specs of the phone's additional display

 Color, LCD 
Resolution

Resolution - Refers to the width and the length od the additional display

 96 x 65 pixels 
Colors

Colors - Shows the number of colors that the additional display supports

 4096 
Battery
Talk time4.33 hours
the average is 10 h (623 min)		3.20 hours
the average is 10 h (623 min)		 
Stand-by time15.4 days (370 hours)
the average is 18 days (434 h)		7.0 days (168 hours)
the average is 18 days (434 h)		 
Capacity910 mAh1070 mAh 
TypeLi - IonLi - Ion 
Hardware
Built-in storage 0.008 GB 
Storage expansionmicroSDMMC 
Camera
Camera2 megapixels0.3 megapixels VGA 
Flash Yes 
FeaturesDigital zoomDigital zoom, Self-timer 
CamcorderYes128x96 (SubQCIF) 
specifications continue after the ad
Multimedia
Music player   
Supported formatsMP3, AAC, AAC+, WMAMP3, AAC, MIDI 
Video playback   
Supported formatsMPEG4, H.263, H.2643GPP 
Radio FM 
StreamingYesYes 
Internet browsing
Browsersupports: supports: WAP 2.0Openwave Browser, supports: supports: WAP 2.0 
Technology
CDMA

CDMA - Code Division Multiple Access. A technique of multiplexing, also called spread spectrum, in which analog signals are converted into digital form for transmission. For each communication channel, the signals are encoded in a sequence known to the transmitter and the receiver for that channel. The foremost application is digital cellular phone technology from QUALCOMM that operates in the 800MHz band and 1.9GHz PCS band. CDMA phones are noted for their excellent call quality and long battery life.

800, 1900 MHz800, 1900 MHz 
AMPS

AMPS - Advanced mobile phone standard. Analogue standard used widely in North America.

 800 
DataEV-DO  
Positioning

Positioning - This field shows the positioning systems supported by the device. There are three main types: GPS, A-GPS and GLONASS. GPS - This is one of the most widespread global positioning technologies, developed and maintained by the U.S. government. It uses satellites in order to detect your location. Works best in clear weather. A-GPS - A-GPS stands for Assisted GPS and is the industry standard for positioning and navigation. “Assisted” means that it can use local wireless networks, in addition to satellites, for quicker and more precise localization. GLONASS - GLONASS is a global positioning system, developed by the Russian Federation. It’s very similar to GPS, but isn’t so popular in cell phones.

A-GPSGPS 
Phone features
Phonebook1000 entries, Caller groups, Multiple numbers per contact, Picture ID, Ring IDCaller groups, Multiple numbers per contact 
OrganizerCalendar, Alarm, To-Do, Calculator, Currency converterCalendar, Alarm, To-Do, Calculator, Stopwatch, Countdown timer 
MessagingSMS, MMS (iTAP), Predictive text inputSMS, MMS 
E-mail IMAP, POP3 
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, CLDC 1.0 
BREW3.1.42.0 
GamesYesJAVA downloadable 
Connectivity
Bluetooth1.21.1 
ProfilesAdvanced Audio Distribution (A2DP), Audio/Visual Remote Control Profile (AVRCP), Basic Imaging (BIP), Basic Printing (BPP), Dial-up networking (DUN), File Transfer (FTP), Generic Access (GAP), Generic Audio/Video Distribution (GAVDP), Handsfree (HFP), Headset (HSP), Object Push (OPP)Dial-up networking (DUN), File Transfer (FTP), Generic Access (GAP), Generic Object Exchange (GOEP), Handsfree (HFP), Headset (HSP), Object Push (OPP), Serial Port (SPP), Service Discovery Application (SDAP) 
USBUSB 2.0Yes 
Headphones connector3.5mm2.5mm 
OtherComputer syncComputer sync, Infrared 
Other features
NotificationsMusic ringtones (MP3), Vibration, Phone profiles, SpeakerphoneMusic ringtones (MP3, AAC), Polyphonic ringtones (24 voices), Vibration, Phone profiles, Speakerphone 
OtherVoice dialing, Voice commands, Voice recording, TTY/TDDVoice dialing, Voice commands, Voice recording, TTY/TDD 
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

03 Apr 200722 Oct 2004 
FCC ID value: IHDT56GU1 linkFCC ID value: QMNRM-19 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.

   
Head1.19 W/kg  
Measured in1900 MHz  
Body0.83 W/kg  
Measured in1900 MHz  
EU SAR   
Head 0.84 W/kg 
Availability
Officially announced27 Mar 200722 Mar 2004 

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