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. Holybro's current Rev8 hardware carries three ICM-45686 IMUs, two barometers and dual SMBus power inputs. The 6X Pro replaces two of those IMUs with vibration-isolated industrial sensors.
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: four general-purpose serial ports, two GPS ports, dual CAN, 100Mbps Ethernet, SPI and I2C. Three of the serial ports support hardware flow control.
Best for: Commercial operations, surveying drones, long-range autonomous aircraft and builds that need carrier-board expansion.
6X vs 6X Pro: What Actually Differs?
Both boards share the same baseboard compatibility and STM32H753 processor. The Pro is not faster; its extra height and weight come from the larger industrial sensor package.
| 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 |
| Target Use | Serious hobbyist / prosumer | Regulated commercial ops |
The ADIS16470 is an industrial-grade MEMS IMU with a ±40g accelerometer range. Together with the vibration-isolated IIM-42652, it gives the Pro a more specialised sensor set for harsh vibration than the standard 6X's three ICM-45686 units.
For most builders the standard 6X is the better value. Pick the Pro when the industrial IMUs solve a documented vibration or environmental requirement, not simply because it is the highest model number.
Pixhawk 6C
The 6C uses the same 480MHz STM32H7 family but in a smaller, integrated form factor. No baseboard is needed; everything is on one PCB. Current boards pair an ICM-42688-P with a BMI088, replacing the discontinued BMI055, and retain dual CAN bus ports.
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 processor and current ICM-42688-P plus BMI088 sensor pair. The savings come from fewer ports: two general-purpose telemetry connectors instead of three, one power input instead of two, and 14 PWM outputs instead of 16.
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: Compact fixed-wing aircraft, rovers and space-constrained autonomous builds that still need dual CAN and redundant IMUs.
Pixhawk 6C vs 6X vs 6C Mini: Side-by-Side
| Feature | 6X / 6X Pro | 6C | 6C Mini |
|---|---|---|---|
| Processor | STM32H753 | STM32H743 | STM32H743 |
| IMU Redundancy | Triple ICM-45686 (current Rev8) | ICM-42688-P + BMI088 | ICM-42688-P + BMI088 |
| Barometer | Dual | Single | Single |
| Power Supply | Digital | Analog | Analog |
| Telemetry + GPS connectors | 4 serial + 2 GPS | 3 telemetry + 2 GPS | 2 telemetry + 2 GPS |
| CAN Bus | 2 | 2 | 2 |
| Ethernet | Yes | No | No |
| PWM Outputs | 16 | 16 (8 IO + 8 FMU) | 14 (8 IO + 6 FMU) |
| Power inputs | 2 digital SMBus | 2 analogue | 1 analogue |
| Size | 6X module 38.8 × 31.8 × 14.6mm; Pro module 38.8 × 31.8 × 30.1mm; standard baseboard 52.4 × 103.4 × 16.7mm | 84.8 × 44 × 12.4mm | Model-dependent; current Model A 54.3 × 39 × 17.5mm |
| Weight | 6X module 23g; Pro module 50g; standard baseboard 51g | 59.3g aluminium case; 34.6g plastic case | 42.4g current Model A; 46.8g Model B |
| Form Factor | Modular (baseboard) | Integrated | Ultra-compact |
The Decision We Would Make
Choose the 6C when you need ArduPilot or PX4 on a conventional multirotor or fixed-wing build and can fit an 84.8mm controller. It keeps dual IMUs, dual CAN and 16 outputs without making you buy and package a carrier board. That is why the Pixhawk 6C is our default recommendation.
Move to the 6X when Ethernet, a companion-computer baseboard, triple IMUs or digital power monitoring solves a real system requirement. Choose the Mini only when the 6C's length is the blocker: it is shorter, but it still weighs roughly 42–47g depending on the model.
What to Buy
- Pixhawk 6C Flight Controller — the sweet spot for most builders
- Pixhawk 6X Pro Autopilot — for industrial sensors and carrier-board expansion
- 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 uses an ADIS16470 and IIM-42652 as its vibration-isolated primary sensors, while the current standard 6X uses three ICM-45686 units. Buy the Pro for a defined high-vibration or industrial requirement; the standard 6X is the better-value modular controller for general autonomous builds.