| Hardware and OS | Etuline bSmart S3520 | |
| Operating system | Android 4.2 | |
| Processor | MediaTek MT6572W, 1000 MHz | |
| Processor cores number | 2 | |
| RAM | 512 Mb | |
| Internal Storage | 4 GB | |
| Memory Card Slot | yes, volume of up to 32 GB | |
| GPU | Mali-400 MP | |
| Display | Etuline bSmart S3520 | other phones |
| Type | colored IPS, 16.78 mln colors, sensor | |
| Size | 3.5" | |
| Resolution | 480x320 | |
| Pixel Density | 165 | |
| Touchscreen | multitouch, capacitive | |
| Automatic display rotation | yes | |
| Connectivity | Etuline bSmart S3520 | other phones |
| Standard | GSM 900/1800/1900, 3G | |
| Interfaces | Wi-Fi 802.11n, Wi-Fi Direct, Bluetooth 3.0, USB | |
| Multi SIM mode | alternate | |
| SIM | regular | |
| Camera | Etuline bSmart S3520 | other phones |
| Main camera | 2 MP, 1600x1200 | |
| Front camera | 0.3 megapixels | |
| Flash | rear | |
| Max. frame rate of video | 15 fps | |
| Video Recording | yes | |
| Video resolution max | 1280x720 | |
| Multimedia | Etuline bSmart S3520 | other phones |
| Audio | MP3, AAC, WAV, WMA, FM-radio | |
| Headphone jack | 3.5 mm | |
| Design | Etuline bSmart S3520 | other phones |
| Case material | plastic | |
| Curved screen | yes | |
| Construction | removable panels | |
| Case type | classic | |
| Height | 116 mm | |
| Width | 60.5 mm | |
| Thickness | 13.5 mm | |
| Weight | 125 grams | |
| Battery | Etuline bSmart S3520 | other phones |
| Capacity | 2200 mA?h | |
| Battery | removable panels | |
| Connector type for charging | micro-USB | |
| Standby time | 72 hours | |
| Talk time | 3 hours | |
| Other | Etuline bSmart S3520 | other phones |
| Sensors | approaching sensor | |
| Flashlight | yes | |
