| Local Name | KF757 Secret |
| Technology | GSM / HSPA |
| 3G Bands | HSDPA 2100 |
| 2G Bands | GSM 900 / 1800 / 1900 |
| Speed | HSPA 3.6/0.384 Mbps |
| GPRS | Class 10 |
| EDGE | Class 10 |
| Announced | 2008, April. Released 2008, June |
| Status | Discontinued |
| Dimensions | 102.8 x 50.8 x 11.8 mm (4.05 x 2.0 x 0.46 in) |
| Weight | 116 g (4.09 oz) |
| SIM | Mini-SIM |
| Display Type | TFT resistive touchscreen, 256K colors |
| Screen Size | 2.4 inches (~34.2% screen-to-body ratio) |
| Resolution | 240 x 320 pixels (~167 ppi pixel density) |
| Protection | Scratch-resistant glass | Limited touchscreen functionality |
| Card Slot | microSD, up to 4 GB |
| Phone Book | 1000 entries, Photocall |
| Call Records | 40 dialed, 40 received, 40 missed calls |
| Internal Memory | 100 MB |
| Primary Camera | 5 MP, 2592 x 1944 pixels, autofocus, LED flash |
| Camera Features | Face detection |
| Video | 480p@30fps, 320p@120fps |
| Secondary Camera | Videocall camera |
| Alert Types | Vibration, MP3 ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | No |
| WLAN | Yes, Wi-Fi 802.11b/g, UMA technology |
| Bluetooth | v2.0, A2DP |
| GPS | No |
| Radio | Stereo FM radio with RDS |
| USB | v2.0 |
| Sensors | Accelerometer |
| Messaging | SMS, EMS, MMS, Email |
| Browser | WAP 2.0/xHTML, HTML |
| Games | 6, incl. motion-based + downloadable |
| Java | Yes, MIDP 2.0 |
| Features Summary | Carbon fiber battery cover, MP3/WMA/AAC/AAC+ player, MP4/DivX(up to 640x480) player, Document viewer (Word, Excel, PowerPoint, PDF), Organizer, Voice memo, TV-out, Predictive text input |
| Battery | Li-Ion 800 mAh battery |
| Stand By | Up to 220 h |
| Talk Time | Up to 3 h 30 min |
| Colors | Black, Ruby Violet, Titan Gold |
| SAR US | 0.53 W/kg (head) 0.24 W/kg (body) |
