Compare Huawei MG323-B Vs Simcom Wireless SIM900S
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| Model | MG323-B | SIM900S |
| Price | $30 | $ |
| Buy | ||
| Manufacturer | Huawei | Simcom Wireless |
| Form Factor | LCC Castellation | Board-to-Board Connector |
| Dimensions | 24 x 24 x 2.95 mm | 33 x 40 x 3 mm |
| Surface Area | 576 sq. mm | 1320 sq. mm |
| Volume | 1699.2 cubic mm | 3960 cubic mm |
| Technologies | GSM, GPRS | GSM, GPRS |
| Max. Upload Speed | 42.8 Kbps | 85.6 Kbps |
| Max. Download Speed | 85.6 Kbps | 85.6 Kbps |
| GSM Bands | 850, 900, 1800, 1900 MHz | 900, 1900 MHz |
| WCDMA Bands | N/A | N/A |
| LTE Bands | N/A | N/A |
| EVDO Bands | N/A | N/A |
| 1xRTT Bands | N/A | N/A |
| Interfaces | ADC, GPIO, SIM, UART, USB | ADC, GPIO, I2C, SDIO, SIM, SPI, UART, USB |
| GPS Support | No | No |
| GNSS Support | No | No |
| Voice Support | Analog | PCM, Analog |
| Automotive Support | No | No |
| Temperature | -30 C to 70 C | -20 C to 60 C |
| Carrier Approvals | Not Available | Not Available |
| Certifications | CE, FCC, GCF, PTCRB | Not Available |