Samsung A657
Release year: 2009
The Samsung A657 (for AT&T) is a shock and water resistant cellphone, with HSDPA/Quad-band operation equipped with AT&T Navigator, expandable memory (microSD) for ample storage capacity for applications, e-mail with attachments and files, MPEG4/3gp player, EDGE class 10, WAP 2.0/HTML and Push to talk. Bluetooth technology allows transferring voice and data (e.g. images and videos) between two devices equipped with a Bluetooth solution, all without wires. It is possible to take photographs, add text, music or speech and create a message to easily send as an MMS attachment file.
Technical specifications
| Networks | Quad-band GSM 900-1800-1900-850 |
| Dimensions | 115 x 52 x 19.5 mm |
| Weight with battery | 123 g |
| Battery | Li-Ion 1420 mAh |
| Standby time | 250 h |
| Talk time | 3 h |
In the box: Battery, user manual, travel charger
Messaging
| SMS |  |
| MMS | |
| Predictive text (T9) | |
| Video messaging | |
| Chat |  |
Design and display
| Display | TFT, 256K colors and 176 x 220 pixels. Wallpapers |
| Adjustable contrast | |
| Multi-line display | |
| Display color | 256K |
| Display size | 176 x 220 pixels |
| Backlit keypad | |
| Keypad lock | |
| One-touch phonebook access | |
| Antenna | internal |
| Vibration | |
| Headphone jack | |
Features
| SIM Application Toolkit | |
| Built-in speakerphone | |
| J2ME support | |
| Conference calling | |
| Voice recorder | |
| Phonebook entries | 1000 |
| Memory | 128 MB expandable with microSD up to 16 GB |
Feature notes: HSPA and GSM/GPRS/EDGE connectivity, Voice memo, MPEG4/3GP player, MP3/e-AAC+/WMA/AMR/SMAF player, MMS, Email, dedicated flashlight, Push to Talk, Email, AT&T Navigator, Bluetooth
Connectivity
| UMTS | |
| GPRS | |
| EDGE | |
| WAP | |
| IrDA (infrared) | |
| Built-in modem | |
| |
| Bluetooth | |
| USB | |
Personalization
| MP3 player | |
| Custom ringtones | |
| Silent mode | |
| Downloadable ringtones | |
| Polyphonic ringtones | |
| Downloadable images and logos | |
| AM/FM stereo radio | |
| Games | |
| Downloadable games | |
| Alarm clock | |
| Calculator | |
Camera
| Camera | |