Pros
No pros
Cons
- Lacks microSD slot for storage expansion
- It is so thick it needs a personal fitness trainer (0.90 inches inches)
- Lacks an ambient light sensor for automatic screen brightness adjustment
Description
Samsung SPH-A640 is simple and stylish black clamshell with internal antenna. It has basic functionality including speakerphone and phonebook with capacity of 300 names. A640 features Bluetooth and VGA camera with digital zoom
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CompareDesign
- Form factor:
- Dimensions:
- 3.60 x 1.80 x 0.90 inches (91.5 x 46 x 23 mm)
- Weight:
- 3.20 oz (91 g)
the average is 4.8 oz (138 g)
- 3.20 oz (91 g)
- Design features:
- Numeric keypad
- Keys:
- Left: Volume control; Right: Camera shutter, Other
Display
- Resolution:
- 128 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.
- Colors:
- Additional display:
Additional display - Shows specs of the phone's additional display
Camera
- Camera:
- 0.3 megapixels VGA
- Features:
- Digital zoom, Self-timer
Battery
- Talk time:
- 3.80 hours
the average is 12 h (700 min)
- 3.80 hours
- Capacity:
- Type:
Internet browsing
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
- AMPS:
AMPS - Advanced mobile phone standard. Analogue standard used widely in North America.
- 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.
Phone features
- Phonebook:
- 299 entries, Caller groups, Multiple numbers per contact, Picture ID, Ring ID
- Organizer:
- Calculator, World clock, Countdown timer, Notes, Alarm, To-Do, Calendar
- Messaging:
- SMS, Predictive text input (T9)
- Instant Messaging:
- AOL, Yahoo!
- 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.
- Games:
- JAVA downloadable
Connectivity
- Bluetooth:
- Profiles:
- Headset (HSP), Handsfree (HFP), Dial-up networking (DUN), Object Push (OPP), Generic Access (GAP)
- USB:
- Headphones connector:
- Other:
- Computer sync
Other features
- Notifications:
- Polyphonic ringtones (32 voices), Vibration, Speakerphone
- Voice 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.
- 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:
- Measured in:
- Body:
- Measured in:
- Head:
Indicates that this field is show only in Full Specs mode
Despite our efforts to provide full and correct Samsung SPH-A640 specifications, there is always a possibility of making a mistake. If you see any wrong or incomplete data, please LET US KNOW.
If you are interested in using our specs commercially, check out our Phone specs database licensing page.
