| Local Name | OT-813D |
| Technology | GSM |
| 2G Bands | GSM 900 / 1800 - SIM 1 & SIM 2 |
| GPRS | Class 12 |
| EDGE | Class 12 |
| Announced | 2011, May |
| Status | Available. Released 2011, Q2 |
| Dimensions | 115 x 61.1 x 12.9 mm (4.53 x 2.41 x 0.51 in) |
| Weight | 101 g (3.56 oz) |
| Keyboard | QWERTY |
| SIM | Dual SIM (Mini-SIM, dual stand-by) |
| Display Type | TFT resistive touchscreen, 256K colors |
| Screen Size | 2.4 inches (~25.4% screen-to-body ratio) |
| Resolution | 320 x 240 pixels (~167 ppi pixel density) |
| CPU | 208 MHz |
| Card Slot | microSD, up to 16 GB |
| Phone Book | Yes, Photocall |
| Call Records | Yes |
| Internal Memory | 50 MB |
| Primary Camera | 2 MP, 1600 x 1200 pixels |
| Video | QCIF@15fps |
| Secondary Camera | No |
| Alert Types | Vibration; MP3 ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 b/g |
| Bluetooth | v2.1, A2DP |
| GPS | No |
| Radio | Stereo FM radio with RDS |
| USB | microUSB v2.0 |
| Messaging | SMS, MMS, Email, Push Email, IM |
| Browser | WAP 2.0/xHTML |
| Games | Yes + downloadable |
| Java | Yes, MIDP 2.1 |
| Features Summary | SNS integration, MP3/AAC+/WAV/WMA player, MP4/H.264 player, Organizer, Voice memo, Predictive text input |
| Battery | Li-Ion 1000 mAh battery |
| Stand By | Up to 720 h |
| Talk Time | Up to 10 h |
| Colors | Black, Purple, Orange, Blue, Gray |