Nokia 6638 vs Nokia N95 US
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| Design | |||
|---|---|---|---|
| Device type | Smart phone | Smart phone | |
| OS | Symbian | Symbian (9.2) S60 3rd Edition, Feature Pack 1 | |
| Form factor | Candybar | Dual-Slider | |
| Dimensions | 4.33 x 2.36 x 0.90 inches (110 x 60 x 23 mm) | 3.89 x 2.08 x 0.82 inches (99 x 53 x 21 mm) | |
| Weight | 4.58 oz (130 g) the average is 4.4 oz (125 g) | 4.23 oz (120 g) the average is 4.4 oz (125 g) | |
| Design features | Numeric keypad | Numeric keypad, Soft keys (2), Music control keys | |
| Side Keys | Right: Volume control, Camera shutter, Multimedia control |
| Display | |||
|---|---|---|---|
| Physical size | 2.6 inches | ||
| Resolution | 176 x 208 pixels | 240 x 320 pixels | |
Pixel density
Pixel density - The pixel density of a display represents the number of pixels over an area of one inch. It’s measured in “pixels per inch”, or ppi. The higher the number, the more detailed and good-looking the display is. | 154 ppi | ||
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 | 65 536 | 16 777 216 |
| Battery | |||
|---|---|---|---|
| Talk time | 4.16 hours the average is 10 h (623 min) | ||
| Stand-by time | 10.4 days (250 hours) the average is 18 days (434 h) | ||
| Talk time (3G) | 3.16 hours the average is 9 h (543 min) | ||
| Stand-by time (3G) | 10.4 days (250 hours) the average is 23 days (561 h) | ||
| Capacity | 1070 mAh | 1200 mAh | |
| Type | Li - Ion | Li - Ion |
| Hardware | |||
|---|---|---|---|
Processor
Processor - The processor is the main computing component of a phone and is a major factor when it comes to the overall speed of the device. Some more powerful smartphones use dual-core and quad-core processors designed to deliver greater performance. | Single core, 332 MHz, ARM11 | ||
| Graphics processor | 3D Graphics HW accelerator | ||
System memory
System memory - System memory, or RAM memory is the type of memory that the device uses to temporarily store data from the OS or currently-running apps. The more RAM available to the device, the better the performance will be when multiple or heavier programs are running. | 128 MB RAM / 256 MB ROM | ||
| Built-in storage | 0.157 GB | ||
| Storage expansion | MMC | microSD |
| Camera | |||
|---|---|---|---|
| Camera | 1.2 megapixels | 5 megapixels | |
| Flash | Yes | ||
| Aperture size
Aperture size - The aperture of a camera is the opening through which light travels before it reaches the camera sensor. The smaller the number is, the bigger this opening is, allowing for more light to pass. | F2.8 | ||
| Features | Exposure compensation, Burst mode, Night mode, Self-timer | Auto focus | |
| Camcorder | Yes | 640x480 (VGA) (30 fps) | |
| Features | Video calling | Digital image stabilization, Video calling | |
| Front-facing camera | Yes |
| Multimedia | |||
|---|---|---|---|
| Music player | |||
| Supported formats | MP3, AAC, AAC+, eAAC+, WMA | ||
| Video playback | |||
| Supported formats | 3GPP | MPEG4, H.263, H.264, 3GPP, RealVideo 8, RealVideo 9, RealVideo 10 | |
| Radio | FM | ||
| Streaming | Yes | Yes |
| Internet browsing | |||
|---|---|---|---|
| Browser | supports: supports: HTML, XHTML, WAP 2.0 | S60 OSS Browser, supports: supports: HTML, XHTML, WAP 2.0, Flash Lite (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 MHz | ||
| GSM | 850, 900, 1800, 1900 MHz | ||
| UMTS | 850, 1900 MHz | ||
| Data | HSDPA 3.6 Mbit/s, UMTS, EDGE | ||
| Global Roaming | Yes | ||
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. | GPS | A-GPS |
| Phone features | |||
|---|---|---|---|
| Phonebook | Caller groups, Multiple numbers per contact, Picture ID, Ring ID | Unlimited entries, Multiple numbers per contact, Picture ID, Ring ID | |
| Organizer | Calendar, Alarm, To-Do, Calculator, Unit converter, Wallet | Calendar, Alarm, To-Do, Document viewer, Calculator, Notes | |
| Messaging | SMS, MMS (T9), Predictive text input | SMS, MMS, Predictive text input (T9) | |
| IMAP, POP3, SMTP | IMAP, POP3, SMTP | ||
| Instant Messaging | Yes | ||
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 1.1 | ||
| Games | Yes | Downloadable |
| Connectivity | |||
|---|---|---|---|
| Bluetooth | 2.0 | ||
| Profiles | Advanced Audio Distribution (A2DP), Audio/Visual Remote Control Profile (AVRCP), Basic Imaging (BIP), Basic Printing (BPP), Dial-up networking (DUN), File Transfer (FTP), Generic Audio/Video Distribution (GAVDP), Generic Object Exchange (GOEP), Handsfree (HFP), Headset (HSP), Object Push (OPP), SIM Access (SAP) | ||
| Wi-Fi | 802.11 b, g | ||
| USB | Yes | Yes | |
| Connector | miniUSB | ||
| Headphones connector | 3.5mm | ||
| Other | Computer sync, Infrared, SyncML | TV-Out, UPnP, Computer sync, Infrared, VoIP |
| Other features | |||
|---|---|---|---|
| Notifications | Vibration, Phone profiles, Speakerphone | Music ringtones (MP3), Vibration, Phone profiles, Speakerphone | |
| Sensors | Accelerometer | ||
| Other | Voice dialing, Voice commands, Voice recording, TTY/TDD | Voice dialing, Voice commands, Voice recording, Push-to-Talk |
| 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 | 26 Apr 2005 | 20 Aug 2007 | |
| FCC ID value: QMNRM-18 link | FCC ID value: PDNRM-160 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 | 1.20 W/kg | 0.89 W/kg | |
| Measured in | 1900 MHz | 1900 MHz | |
| Body | 0.67 W/kg | 0.81 W/kg | |
| Measured in | 1900 MHz | 1900 MHz | |
| EU SAR | |||
| Head | 0.67 W/kg |
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