JJRC H43WH Blue Crab (In-Depth Review)

The JJRC Blue Crab is one of those entry-level selfie drones that sell for less than $100. It’s a foldable toy drone that has the appearance of a book when its motor arms are folded down. The name Blue Crab was probably inspired by the drone’s pincer-like prop guards.

Priced at just $30 with shipping, the Blue Crab is well within reach of most consumers. With its HD 720P camera, altitude hold and accelerometer control (G sensor / flying by tilting your smartphone), it has all the basic features needed for an entry-level selfie drone.

Product Highlights
  • Dimensions: 150 x 170 x 28mm / 150 x 95 x 40mm (folded)
  • Platform: Quadcopter
  • Diagonal motor distance: 120mm
  • Flight features:
    • Altitude hold
    • Headless mode
    • 3D flips
    • G sensor
    • Auto takeoff / landing
    • Emergency landing
    • 3 flight speeds (30% / 60% / 100%)
    • Fly-by-app
  • Propulsion: brushed motors / 32mm 3-blade propellers
  • Weight: 76g (with battery)
  • Camera resolution: 1MP stills (1280 x 720) and HD 720P video @ 25fps
  • File format: BMP/MP4
  • Battery: 3.7V 500mAh Li Po
  • Charging time: 45 minutes
  • Flight time: about 5-7 minutes
  • Control distance: about 30 meters

One key feature the Blue Crab has is a button that allows the drone to fold and unfold itself. The button was designed to trigger a mechanism in the fuselage that helps deploy the motor arms and retract them with a single push. Though the idea sounds neat, the button on my sample Blue Crab has never really been able to function properly. Pressing it when the drone is folded seems to unfold the motor arms halfway only.  It also fails to retract the arms once they are in place.

Either the button on my sample unit is faulty or the mechanism was poorly designed. Despite this, unfolding or folding the motor arms manually isn’t an issue. They click firmly in place when you fold them and stay in place when you deploy them so I guess whether the gimmicky automatic fold button works or not doesn’t really matter.

Faulty button aside, the Blue Crab is actually quite well built for a $30 toy drone. It has a fuselage with metallic blue paintwork and looks quite neat. There are no messy wires, landing legs or antennas sticking out. Even the power button is placed neatly flushed on the fuselage and the battery bay is hidden neatly at the bottom.

The Blue Crab was clearly designed to be easily transported and stored. Keeping it in your bag or backpack with other stuff isn’t an issue with its neat design. Imagine trying to store and transport other toy drones that have prop guards and landing legs sticking out.

Flight Performance

The Blue Crab is one of those toy drones that don’t come with a conventional radio transmitter (remote controller). Instead, you’re required to install the JJRC app on your smartphone to pilot it. The app emulates the controls of a conventional Tx and you can fully operate the Blue Crab with it. Without a Tx to carry around, things are a lot less complicated since you only need to worry about the drone.

Besides being a selfie drone, the Blue Crab has all the basic features that makes it a decent toy drone to fly around just for fun. It can perform automated flips and has a flight time of about 5 to 7 minutes. The generic battery is removable so if you want to fly longer outdoors, you can bring along a few batteries with you.

Although the Blue Crab flies quite well, its biggest flaw is probably the lack of a conventional Tx. Flying using the app just doesn’t give you the level of feedback and precision that a conventional Tx offers.


The Blue Crab comes with a HD 720P WiFi FPV camera, which is probably the most basic spec you should consider when shopping for an entry-level selfie drone. Anything less than that just doesn’t meet the cut. With its built-in WiFi FPV feature, you can see what the camera is seeing via the app which lets you position and frame your shots.

The app also has a filter that lets you “beautify” your photos. This filter appears to be a gimmick because all it does is just increase the brightness of an image. The image on the right above is a sample image that has been “beautified”. The image on the left is the original.

Though not exactly a DJI Spark, the Blue Crab is still capable of some reasonably good 1MP selfies that you can post on social media or share with friends. Above is a gallery of unedited sample photos taken using the Blue Crab. The HD 720P videos that the Blue Crab is capable of taking are not too shabby too for a $30 device. Below is a sample video.

To help in taking selfies, the Blue Crab has headless mode which is essential if you want to point the camera at yourself and still pilot the drone properly. Piloting the Blue Crab to take selfies without headless mode would require advanced piloting skills.


At just $30, the JJRC H43WH makes a rather good entry-level selfie drone. It’s easy to carry around, store and transport. It also has a design that’s quite neat without much sticking out. The only flaws I can see are its one-button folding mechanism which doesn’t quite work and the fly-by-app which doesn’t actually give you the best and most precise flying experience.

Other than these flaws, the Blue Crab is overall quite a good toy drone that costs less than $50. It’s one of those selfie toy drones that’s made to be brought along for outings or vacations. The JJRC H43WH Blue Crab is available for $30 at GearBest. Click here for more details.

JJRC H43WH Blue Crab

JJRC H43WH Blue Crab


9.5 /10


7.5 /10

Features and Performance

7.5 /10

Flight Time

7.0 /10

Build Quality

8.2 /10


  • Neat and tidy design
  • Foldable and easy to store
  • HD 720P WiFi FPV camera


  • Push button folding mechanism doesn't quite work
  • Fly-by-app only

Adrin Sham

Adrin Sham is a designer and photographer turned drone enthusiast. Since buying a drone for aerial photography some years ago, he has since developed a passion for UAVs and all things related.

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8 Responses

  1. George says:

    I purchased one on your recommendation. Ive tried using this with both an Iphone and a Android tablet. In both cases it starts off once you up the throttle it goes full tilt to the ceiling or outdoor flight limit up and nothing else it’s horrible. Any insights? I would like it to work but it’s not controllable.

    • Adrin Sham says:

      Do you mean the drone ascends all the way up or do you mean it travels forward or in a particular direction? If it travels in a particular direction by itself, this could be an accelerometer that is not calibrated properly. You can try to recalibrate the accelerometer and see if it solves the problem.

    • Robert Ricks says:

      Mine does the same. Cannot make it hover or come down. It takes off straight up and nothing else

    • Jean-Paul Bercq says:

      Ever tried to reset the Gyro in the parameters?

    • Ken says:

      Same thing here. It is uncontrollable by app. Is there a conventional remote control that will work with this model?

  2. Rejean viau says:

    L’application ne fonctionne pas sur mon drone bleu crab impossible de le faire démarré la caméra ne s’ouvre pas

  3. Ricky Hart says:

    I received my blue crab drone Please tell me the battery seems to be covered in a plastic film or wrap
    Must I or can I remove this plastic

    • Adrin Sham says:

      Ricky, I believe you’re referring to that thick plastic wrap? Li Po batteries typically have what appears to be a wrap that hold the battery cells together. It shouldn’t be removed.

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