Motorola C257 vs Samsung SCH-R455C
Motorola C257
Market Status: Released US carrier availability: Tracfone - Available as Motorola C261 (since 31 Dec 2006)
Samsung SCH-R455C
Market Status: Released US carrier availability: Tracfone - Available (since 20 Apr 2012)
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| Design | |||
|---|---|---|---|
| Device type | Feature phone | ||
| Form factor | Candybar | Side-Slider | |
| Dimensions | 4.33 x 1.96 x 0.58 inches (110 x 50 x 15 mm) | ||
| Weight | 3.20 oz (91 g) the average is 4.4 oz (126 g) | ||
| Design features | Numeric keypad, Soft keys (2) | Soft keys (2), D-Pad | |
| Side Keys | Left: Volume control; Right: Camera shutter | ||
| Colors | Black |
| Display | |||
|---|---|---|---|
| Resolution | 128 x 128 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 | ||
| Colors | 65 536 |
| Battery | |||
|---|---|---|---|
| Talk time | 7.50 hours the average is 10 h (626 min) | 6.00 hours the average is 10 h (626 min) | |
| Stand-by time | 11.7 days (280 hours) the average is 18 days (435 h) | 12.5 days (300 hours) the average is 18 days (435 h) | |
| Capacity | 930 mAh | ||
| Type | Li - Ion |
| Hardware | |||
|---|---|---|---|
| Built-in storage | 0.0016 GB | ||
| Storage expansion | microSD, microSDHC up to 16 GB |
| Camera | |||
|---|---|---|---|
| Camera | 0.3 megapixels VGA | 1.3 megapixels | |
| Features | Digital zoom |
| Multimedia | |||
|---|---|---|---|
| Music player | |||
| Supported formats | MP3 | ||
| Speakers | Loudspeaker |
| Internet browsing | |||
|---|---|---|---|
| Browser | Openwave 6.2 Browser, supports: supports: WAP 2.0 | supports: supports: WAP |
| 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, 1900 MHz | ||
| Other | Other version supports GSM 900/1800 MHz | ||
| Data | GPRS | ||
| Global Roaming | Yes |
| Phone features | |||
|---|---|---|---|
| Phonebook | 100 entries, Caller groups, Multiple numbers per contact | 1000 entries | |
| Organizer | Calendar, Alarm, Calculator, Currency converter, Stopwatch | Alarm | |
| Messaging | SMS, Predictive text input (iTAP) | SMS, MMS, Predictive text input | |
| Games | Yes |
| Connectivity | |||
|---|---|---|---|
| Bluetooth | Yes | ||
| Headphones connector | 2.5mm |
| Other features | |||
|---|---|---|---|
| Notifications | Polyphonic ringtones (32 voices), Vibration, Phone profiles, Speakerphone | Polyphonic ringtones | |
| Hearing aid compatibility | M4, T3 | ||
| Other | TTY/TDD, Push-to-Talk | 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 | 06 Dec 2005 | 16 May 2011 | |
| FCC ID value: IHDT56FY1 link | FCC ID value: A3LSCHR455C 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 | 1.38 W/kg | 0.44 W/kg | |
| Measured in | 1900 MHz | 1900 MHz | |
| Body | 0.55 W/kg | 0.62 W/kg | |
| Measured in | 1900 MHz | 1900 MHz |







