| Hardware and OS | ASTRO S451 | |
| Operating system | Android 4.4 | |
| Processor | Spreadtrum SC7731, 1200 MHz | |
| Processor cores number | 4 | |
| RAM | 512 Mb | |
| Internal Storage | 4 GB | |
| Memory Card Slot | yes, volume of up to 32 GB | |
| GPU | Mali-400 MP2 | |
| Display | ASTRO S451 | other phones |
| Type | colored TFT, sensor | |
| Size | 4.5" | |
| Resolution | 854x480 | |
| Touchscreen | multitouch, capacitive | |
| Connectivity | ASTRO S451 | other phones |
| Standard | GSM 900/1800/1900, 3G | |
| Interfaces | Wi-Fi 802.11n, Bluetooth 2.1, USB | |
| Multi SIM mode | alternate | |
| SIM-card amount | 2 | |
| Camera | ASTRO S451 | other phones |
| Camera | 2 megapixels | |
| Front camera | 0.3 megapixels | |
| Video Recording | yes | |
| Multimedia | ASTRO S451 | other phones |
| Audio | MP3, FM-radio | |
| Design | ASTRO S451 | other phones |
| Case type | classic | |
| Height | 135 mm | |
| Width | 67 mm | |
| Thickness | 9.6 mm | |
| Weight | 142 grams | |
| Battery | ASTRO S451 | other phones |
| Capacity | 1500 mA?h | |
| Battery type | Li-Ion | |
| Other | ASTRO S451 | other phones |
| Flashlight | yes | |
