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BETAFPV X-Knight 4” FPV Toothpick Quadcopter – FrSky

5.00 out of 5
(1 customer review)
The BETAFPV X-Knight is a lightweight 4-inch FPV toothpick quad designed for high speed and agility.


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Recommended Battery

GNB Battery 14.8V 850mAh 4S

GNB are the global leading manufacturer of quality RC LiPo batteries for Racing Drones. Each battery undergoes a rigorous quality control test to ensure the highest quality possible. Don't settle for less than premium - go GNB.

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The BETAFPV X-Knight is a lightweight 4-inch FPV toothpick quad that only weighs130g, which is below 250g, even with the battery on. Don’t underestimate the power of a toothpick build, this quad is a powerful as a 5-inch drone.

Makes flying easy without limitation!   

Note: Battery is NOT included.


  • Weight: 129.6g (without battery)
  • FC&ESC:20A Toothpick F4 2-4S AIO FC
  • Motors: 1505 3600KV Brushless Motors
  • Props: HQ 4025 2-Blade Props
  • Camera: Caddx Ratel Camera
  • VTX: A01 25-200mW 5.8G VTX
  • Frame: X-Knight Carbon Fiber 4” Frame Kit
  • Canopy: Canopy for Mini Camera V3
  • Receiver Option: Frsky XM / DSMX / Futaba S-FHSS / TBS Crossfire
  • Flight time: 3:30-7:30mins with XT60 4S battery

Flight Controller

Toothpick F4 2-4S 20A AIO FC– The first quadcopter installs all-in-one 20A Toothpick FC, which can handle 20A continuous current(25A burst) and provide with massive levels of performance capability while still maintain ultralight only 6.63g. Possesses a high-performance STM32F411CEU6 processor and tuned Betaflight MATEKF411 (MK41), which provides much more power on 4S.


1505 3600kv motor hits the nice spot for high-powered 4s 4” toothpick builds with the ability to swing up to 4″ props with ease. Combined with 20A Toothpick F4 AIO FC, which will provide you enough output power.

Camera & VTX

The Caddx Ratel is a great camera choice for both night flight as well as during the day! Equipped with a high quality 1/1.18″ HDR sensor, it provides up to 0.0001 Sensitivity of lux. It is very versatile in that you can switch between PAL and NTSC video and also between 4:3 and 16:9 video formats. Latency is super low at only 8ms.

Specification of Camera

  • Image Sensor: 1/1.8″ Inch starlight HDR sensor
  • Horizontal Resolution: 1200TVL
  • FOV: 180 Degree
  • Min. Latency: 8ms
  • TV System: NTSC & PAL (changeable)
  • Image: 16:9 & 4:3 (changeable)
  • WDR: Super WDR (HDR)
  • Min. Illumination: Starlight
  • Synchronization: Internal
  • Electronic Shutter: PAL: 1/50~100,000; NTSC: 1/60~100,000
  • S/N Ratio: >60dB (AGC OFF)
  • Video Output: CVBS
  • Camera OSD: Separate OSD
  • DNR: 3-DNR

Specification of VTX

A01 VTX board is lighter and perfectly suitable for canopy with switchable output power between 25mW and 200mW. SmartAudio is available for VTX remote control in default.

  • Output power: 25mW and 200mW (Adjustable)
  • Smart Audio function is included for radio control
  • Frequency: 5.8GHz 6 bands 37 channels

X-Knight Carbon Fiber 4” Frame Kit

Our first assembled 4” frame kit, which adopts T700 carbon material becomes ultimate durability while maintaining minimal weight 24.43g. It consists of arms, bottom plate and top plate, which allows you to replace the damaged part. Meanwhile, the top plate comes with press nuts to make the installation process easier.

Injection Molded Canopy

The micro canopy specially designed for a 19-20mm camera, which adopts an injection molded process and PE material, much durable than the original canopy.

Recommended Battery (Not Included)

850mAh 4S battery with XT60 connector is the best option to power the X-Knight 4″ quad. The following is a list of recommended batteries.


  • 1 * X-Knight 4Inch Toothpick FPV Quad
  • 1 * HQ 4025 2-Blade Props (4pcs)
  • 1 * Set of M2*7 screws

Additional information


Drone Battery Rating


Drone Size

1 review for BETAFPV X-Knight 4” FPV Toothpick Quadcopter – FrSky

  1. 5 out of 5

    matt (verified owner)

    this thing is so much fun and fast

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