Compare Ublox SARA-G350 ATEX Vs Simcom Wireless SIM900B
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| Model | SARA-G350 ATEX | SIM900B |
| Price | $11.50 | $15.75 |
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| Manufacturer | Ublox | Simcom Wireless |
| Form Factor | LGA | Board-to-Board Connector |
| Dimensions | 26 x 16 x 2.4 mm | 45 x 34 x 3 mm |
| Surface Area | 416 sq. mm | 1530 sq. mm |
| Volume | 998.4 cubic mm | 4590 cubic mm |
| Technologies | GSM, GPRS | GSM, GPRS |
| Max. Upload Speed | 85.6 Kbps | 85.6 Kbps |
| Max. Download Speed | 85.6 Kbps | 85.6 Kbps |
| GSM Bands | 850, 900, 1800, 1900 MHz | 850, 900, 1800, 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 | GPIO, I2C, SIM, UART, USB | ADC, GPIO, I2C, SDIO, SIM, SPI, UART, USB |
| GPS Support | No | No |
| GNSS Support | No | No |
| Voice Support | PCM, Analog | PCM, Analog |
| Automotive Support | No | No |
| Temperature | -40 C to 85 C | -30 C to 80 C |
| Carrier Approvals | Not Available | Not Available |
| Certifications | ATEX, CE, FCC, GCF, PTCRB | CE, FCC, IC, ICASA, PTCRB, ROHS |