Freematics ONE+ Model A
Build custom vehicle data applications with an Arduino-programmable ESP32 platform featuring OBD-II, WiFi, Bluetooth and microSD logging.
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Official Freematics hardware
Built for Vehicle Data
Official hardware for OBD-II, GNSS, LTE, and data logging applications.
ONE+ Model BESP32OBD-IILTE CAT-1WiFi/BLEGNSS
ONE+ Model HESP32OBD-IILTE CAT-1/CAT-4WiFi/BLEGNSSJ193924V System
OBD-II Emulator MK2OBD‑II SimulationDTCVINCALIDCVNBLE/APPUSB/UARTProgrammability
Devkits
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Freematics ONE+ Model B
Connect your vehicle to the cloud with programmable ESP32 hardware combining OBD-II data, GNSS positioning, 4G LTE connectivity.
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Freematics ONE+ Model H
Develop telematics solutions for passenger and heavy-duty vehicles with OBD-II, J1939, LTE connectivity, GNSS positioning and 24V system.
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Freematics OBD-II Emulator
Test OBD-II devices and applications on your workbench with programmable vehicle data, diagnostic trouble codes and vehicle identifiers.
Learn More →Compare Freematics ONE+ Models
View full comparison →| Feature | Model A | Model B | Model H |
|---|---|---|---|
| Vehicle Type | Passenger vehicles | Passenger vehicles | Passenger vehicles Commercial vehicles Heavy duty vehicles |
| OBD-II | ✓ | ✓ | ✓ |
| Cellular | Optional | LTE CAT-1/CAT-M | LTE CAT-1/CAT-M |
| GNSS | Optional | ✓ | ✓ |
| Heavy-Duty | - | - | J1939 & 24V |
| Peripherals | No PSRAM / No RTC | 8MB PSRAM / RTC | 8MB PSRAM / RTC |