Quick Answer
The Pixhawk 6X targets professional builds with triple-redundant sensors and a modular baseboard system. The 6C offers a cost-effective integrated design for mid-range drones. The 6C Mini strips down the 6C for the smallest possible footprint. There is no standalone "Pixhawk 6" product.
The Current Pixhawk Lineup
Holybro's current Pixhawk generation uses the FMUv6 family. If you are coming from learning what Pixhawk is, this article helps you pick the right board. All three controllers share the same STM32H7 processor family running at 480MHz, but they differ significantly in redundancy, connectivity, and physical size.
Pixhawk 6X and 6X Pro
The 6X is the flagship. It carries triple-redundant IMUs (three ICM-45686 sensors on the latest Rev8), dual barometers, and a digital power supply. The 6X Pro steps up further with industrial-grade sensors and a secure element chip.
What sets the 6X apart physically is its modular design. The controller module plugs into a baseboard, and Holybro offers baseboards for standard builds, Raspberry Pi CM4 companion computers, and Nvidia Jetson. This makes it straightforward to integrate with onboard computing for surveying, mapping, or computer vision workloads.
Connectivity is comprehensive: eight UARTs (three with hardware flow control), dual CAN bus ports, two GPS ports, Ethernet, SPI, and I2C. You will not run out of places to plug things in.
Best for: Commercial operations, surveying drones, long-range autonomous aircraft, anything where sensor failure is not an option.
6X vs 6X Pro: What Actually Differs?
Both boards share the same form factor, baseboard compatibility, and STM32H753 processor. The Pro is not faster. The differences are in sensor quality and security hardware.
| Feature | 6X (Rev8) | 6X Pro |
|---|---|---|
| Primary IMU | ICM-45686 ±32g | ADIS16470 ±40g (Industrial) |
| Secondary IMU | ICM-45686 ±32g | IIM-42652 ±16g (Industrial) |
| Tertiary IMU | ICM-45686 ±32g | ICM-45686 ±32g |
| Vibration Isolation | Standard damping | Advanced high-frequency isolation |
| Secure Element | No | Yes (firmware signing) |
| Target Use | Serious hobbyist / prosumer | Regulated commercial ops |
The ADIS16470 is Analog Devices' industrial-grade MEMS IMU, rated for higher shock and vibration environments. Combined with the advanced vibration isolation material and independent LDO power for each sensor set, the Pro handles aggressive multirotor vibes and fixed-wing engine noise better than the standard 6X. The secure element prevents unauthorised firmware modifications, which matters for operations that require audit trails or compliance documentation.
For most builders the standard 6X is the better value. Pick the Pro if you are building for regulated surveying, delivery, or inspection work where proving sensor integrity matters.
Pixhawk 6C
The 6C uses the same STM32H743 processor but in a smaller, integrated form factor. No baseboard needed; everything is on one PCB. It retains double IMU redundancy (ICM-42688-P + BMI055) and dual CAN bus ports, making it a capable mid-range controller.
The trade-offs versus the 6X: single barometer instead of dual, analog power monitoring instead of digital, no Ethernet, and no modular baseboard option. For most autonomous builds that do not need industrial-grade redundancy, the 6C delivers more than enough capability. A DroneCAN power module like the PM08-CAN handles voltage and current monitoring over CAN bus.
Best for: Fixed-wing mapping drones, mid-size multirotors, hobbyists moving beyond basic builds.
Pixhawk 6C Mini
The Mini is a physically smaller version of the 6C with the same core processor and IMUs. The savings come from fewer ports: four UARTs instead of seven, one power port instead of two, no Telem3, no SBUS Out, no IO Debug, and only six FMU PWM channels instead of eight.
One advantage: the Mini has its PWM header built directly onto the board. The standard 6C requires a separate breakout board for direct ESC connections, so the Mini actually saves physical space and wiring complexity.
Best for: Small multirotors, lightweight builds, 3-inch class drones where every gram matters.
Side-by-Side Comparison
| Feature | 6X / 6X Pro | 6C | 6C Mini |
|---|---|---|---|
| Processor | STM32H753 | STM32H743 | STM32H743 |
| IMU Redundancy | Triple | Double | Double |
| Barometer | Dual | Single | Single |
| Power Supply | Digital | Analog | Analog |
| UARTs | 8 | 7 | 4 |
| CAN Bus | 2 | 2 | 2 |
| Ethernet | Yes | No | No |
| PWM Outputs | 8 Main + 8 FMU | 8 Main + 8 FMU | 8 Main + 6 FMU |
| Form Factor | Modular (baseboard) | Integrated | Ultra-compact |
What to Buy
- Pixhawk 6C Flight Controller — the sweet spot for most builders
- PM08-CAN 14S 200A DroneCAN Power Module — high-voltage power monitoring
- Holybro Microhard V2 Telemetry Radio — long-range mesh telemetry for 6X builds
Browse more options in the Maker collection.
FAQ
Q: Is there a "Pixhawk 6" without a letter suffix?
A: Not as a current product. The generation is split into the 6X line (modular, professional) and the 6C line (integrated, cost-effective). The "6" designation refers to the FMUv6 hardware generation.
Q: Can I swap between PX4 and ArduPilot on any of these?
A: Yes. All three run either firmware. Flash through QGroundControl (PX4) or Mission Planner (ArduPilot).
Q: Is the 6X Pro worth the extra cost over the 6X?
A: For most builders, no. The Pro adds an ADIS16470 IMU rated for higher shock and vibration, advanced vibration isolation material, and a secure element for cryptographic firmware signing. These matter for regulated commercial operations (surveying, delivery, inspection) where you need to prove sensor integrity or prevent unauthorised firmware changes. For everything else, the standard 6X is identical in daily use.