U.S. Cellular - Discontinued
- Lacks a standard (3.5mm) headphones jack
- Lacks an ambient light sensor for automatic screen brightness adjustment
- 4.59 x 2.11 x 0.59 inches (117 x 54 x 15 mm)
the average is 4.6 oz (131 g) 3.81 oz (108 g)
- 3.81 oz (108 g)
- Physical size:
- 2.4 inches
- 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.
- 167 ppi
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.
- 2 megapixels
- Built-in storage:
- 0.1 GB
- Storage expansion:
- microSD, microSDHC up to 16 GB
- Talk time:
the average is 12 h (745 min) 5.00 hours
- 5.00 hours
- Stand-by time:
the average is 20 days (487 h) 12.0 days (288 hours)
- 12.0 days (288 hours)
- 1140 mAh
- Earpiece, Loudspeaker
- Built-in online services support:
- Facebook, MySpace
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
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, E911
- 2.1, EDR
- USB 2.0
- Music ringtones (MP3, AAC, 3GP, MIDI), Polyphonic ringtones (72 voices), Vibration, Silent mode, Speakerphone
- Hearing aid compatibility:
- M4, T3
- Voice dialing, Voice commands
- Officially announced:
- 29 Nov 2010
- MSRP price:
- $ 40
This device is also known as Samsung SCH-R580
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