SKU: 19112451330

BetaFPV Air Brushless Flight Controller G4 4-in-1 AIO 400mw VTX

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Description

BetaFPV Air Brushless Flight Controller G4 4-in-1 AIO 400mw VTXAir Brushless Flight Controller, the first 1S FC that utilizes the STM32G473CEU6, experienced a remarkable 55% increase in computing speed and lightning fast response times, surpassing the F411. Equipped with the industry leading ICM42688P gyro and onboard 5. 8G 25mw~400mw VTX, it offers both 4IN1 with 2. 9g and 5IN1 with 3. 6g Versions, which takes your drone's posture and movement accurately to the next level. Immerse yourself effortlessly in the

Air Brushless Flight Controller, the first 1S FC that utilizes the STM32G473CEU6, experienced a remarkable 55% increase in computing speed and lightning-fast response times, surpassing the F411. Equipped with the industry-leading ICM42688P gyro and onboard 5.8G 25mw~400mw VTX, it offers both 4IN1 with 2.9g and 5IN1 with 3.6g Versions, which takes your drone's posture and movement accurately to the next level. Immerse yourself effortlessly in the drone world of Finger-Tip control. Unmatched value and undeniable superiority with it, leave most of the competition in the dust. It will be the advanced choice for future ultralight 1S whoop drones!

Check out all our Whoop Style AIO Flight Controllers and the rest of our BetaFPV Products

  • Crafted for advanced pilots, the ultra-thin (0.8mm) and lightweight Air FC is engineered for maximum agility and race-winning performance. It is the definitive choice for pushing the boundaries of FPV flight.  For newcomers to FPV or those flying for entertainment, the Matrix FC is the ideal alternative. It offers enhanced durability, requires no welding, and provides a more beginner-friendly experience.
  • VTX Power: Higher VTX power consumes more energy and generates more heat, reducing flight time. For better flight time in indoor scenarios, use 25~100mW power. 
  • The calibrated power measured after temperature stabilization (stabilization condition: more than 60 seconds after powering on the flight controller) is: when set to 25mW, the output power is between 14dBm±0.8dBm (21mW to 30mW), which meets the normal standard. The following is the 5IN1 Air FC test data with the VTX set to 25mW, the power data is tested at different times on the R1, R3, R5, and R7 frequency points.
  • Motor Wiring: Only soldering is supported for motor wiring on the flight control. Be careful to ensure the temperature of the soldering iron is maintained below 370℃ and limit the soldering duration to 1~2 seconds.

 

Bullet Points

  • Air Brushless Flight Controller, the first 1S FC that utilizes the G473 processor, experienced a remarkable 55% increase in computing speed and lightning-fast response times for precise racing and complex freestyle maneuvers, surpassing the F411.
  • Higher integration yet lightweighter design, featuring a custom miniature OSD chip. Weighing only 2.9g (4IN1 Version) or 3.6g (5IN1 Version), it offers extra UART port options for effortless function expansions, adapting flawlessly to any flight scenario.
  • Default integrated onboard 25-400mW VTX. Streamlines installation saves space, reduces weight, and boosts convenience for VTX and FC adjustments. The 5IN1 Version even integrates the Serial ELRS 2.4G RX.
  • Elevate your drone's precision with the industry-leading ICM42688P gyro, integrated accelerometer, cutting-edge sensor calibration, and filtering algorithms, and a sample rate of up to 8K, which takes the drone's posture and movement accurate and precise drone to the next level.
  • Unlock extensive flight data recording and analysis with an impressive up to 16MB capacity black box. Maximize performance and diagnose faults effectively, leveraging the full potential of your drone.

Specifications

FC

  • Weight: 2.9g (4IN1 Version) / 3.6g (5IN1 Version) 
  • Mounting Hole Size: 26mm x 26mm 
  • CPU*: STM32G473CEU6 (168MHz) 
  • Six-Axis: ICM42688P (SPI connection) 
  • Blackbox Memory: 16MB
  • Sensor: Voltage&Current
  • 5V BEC*: 5V 3A
  • USB Port: SH1.0 4-Pin
  • Built-in ESC with 5A continuous
  • RX: Serial ELRS 2.4G (V3.4.3) (Only 5IN1 Version)
  • 4IN1 Version: FC+ESC+OSD+VTX 
  • 5IN1 Version: FC+ESC+OSD+VTX+RX

ESC

  • Input Voltage: 1S
  • FC Firmware Version: Betaflight_4.5.0_BETAFPVG473
  • ESC Firmware: A_X_5_96KHz_V0.19.hex for BB51 Bluejay hardware
  • Signal Support: D-shot300, D-shot600

VTX

  • Output Power: 25/100/200/400/PIT
  • Frequency: 5.8GHz 48 channels, with Raceband: 5658~5917MHz
  • Channel SEL: SmartAudio2.0
  • Modulation Type: FM 
  • Frequency Control: PLL 
  • All Harmonic: Max -50dBm 
  • Frequency Stability: ±100KHz (Typ.) 
  • Frequency Precision: ±200KHz (Typ.) 
  • Channel Carrier Error: ±1.5dB
  • Antenna Port: 50 Ω 
  • Operating Temperature: -10℃~+80℃


Diagram

Air Brushless Flight Controller (4IN1 Version):

Comparison Between G473 and F411

Say goodbye to limitations and embrace the cutting-edge technology of the G473 flight controller for an unparalleled flight experience. Air Brushless Flight Controller features up to 168MHz superior CPU Clock Speed and 4 richer serial ports, enabling lightning-fast response times and advanced computing power, making it ideal for demanding flight, which takes your flying experience to the next level and demonstrates outstanding performance, surpassing all 1S FC options available on the market at present. 

 

Betaflight Firmware and CLI 

Betaflight official developers recommend using version 42688 of the gyroscope, and many issues with ICM42688 have been fixed in version 4.5.0. Please learn more from version 4.5.0.

Bluejay ESC Firmware

With BB51 ESC solution,  Air Brushless Flight Controller is based on A_X_5_96KHz_V0.19.hex for BB51 Bluejay hardware, it supports D-shot300, D-shot600, and even RPM filtering in Betaflight, offers 24KHz, 48KHz, and 96KHz fixed PWM frequency for options, and custom start-up melodies. 

DO NOT flash the firmware with a shorter interval, otherwise, there will be a certain chance of stalling and burning the flight controller.

 

Connecting External RX/VTX

Please note that UART2 has connected to the VTX by default. This FC reserves 3 complete full-featured serial ports that can be used for external CRSF/SBUS receivers, GPS, HD VTX, or other serial devices. You can refer to the below pictures. 

Attention

  • VTX Power: Higher VTX power consumes more energy and generates more heat, reducing flight time. For better flight time in indoor scenarios, use 25~100mW power.
  • Motor Wiring: Only soldering is supported for motor wiring on the flight control. Avoid terminal plugging.
  • VTX Antenna: Connect and install the image transmission antenna before powering on the flight control. Alternatively, set transmission power to 0 to avoid burnout.


Package Includes:

  • 1 * Air Brushless Flight Controller
  • 1 * Type-C to SH1.0 Adapter 
  • 1 * SH1.0 4Pin Adapter Cable
  • 1 * 5.8g VTX Antenna
  • 1 * BT2.0 U Whoop Cable Pigtail | 40mm
  • 4 * M1.4*4 Self-tapping Screws
  • 4 * Shock Absorbing Ball

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 19112451330

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Reviewed in the United States on December 2, 2025
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Mr. Ruiz
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Barbara McCloud
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Nice and strong, tedious, putting together, but very good quality
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