Review: Flywoo Flylens75 Cinewhoop – One of the Smallest O3 Platforms

by Oscar
Flywoo Flylens75 Cinewhoop

I was eager to review the Flywoo Flylens75, especially given my fondness for its larger sibling, the Flylens85. The Flylens 75 promised a blend of lightweight design and power in a 2S, 2-inch drone form factor. It’s a micro cinewhoop that is designed for the DJI O3 Air Unit. In this review we will explore its capabilities and performance.

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Learn more about Cinewhoops in our buyer’s guide: https://oscarliang.com/cinewhoop/

Where To Buy?

Get your Flylens75 from:

In the box, it included a variety of accessories like spare screws, spare propellers, a 3D printed O3 camera protector, landing foam pads, and battery connectors. My review unit also came with two LiPo batteries which need to be purchased separately.

Flywoo Flylens75 Cinewhoop Unbox Accessories

Flywoo Flylens75 Cinewhoop Unbox Drone

Flywoo Flylens75 Cinewhoop Dji O3 Camera Mount

Flywoo Flylens75 Cinewhoop Dji O3 Cage

Build and Design

The Flylens 75 is notably lighter than the larger Flylens 85. The drone with DJI O3 Air unit (without battery), weighing 82g, was impressively light. It’s about 10 grams heavier than the BetaFPV Pavo Pico though, which is another cinewhoop of the same size.

The frame is crafted from light yet sturdy plastic, featuring flexible and crash-resistant prop ducts. The frame features a Y-structure design, ensuring that the prop guards do not interfere with the camera.

Interestingly, the electronics are exactly the same as the Flylens85, same FC/ESC board, even motor size and KV are the same. This is because the Flylens75 is using smaller 4-blade propellers instead of larger 2-blade props in the Flylens 85.

The FC is the Goku F4 12A 1-2S flight controller  with integrated 2.4GHz ExpressLRS receiver. The motors are robust 1003 14800KV. The propellers are 1.6-inch Gemfan 4-blade props.

It comes with 3D printed TPU battery mounts, supporting battery options like the 2S 550mAh, 750mAh and 1000mAh. However, it seems you can only mount the battery sideway (aka toilet tank mounting), if you mount it front to back, it poses potential risks of scratching the battery against the USB port.

Flywoo Flylens75 Cinewhoop Size Compare Flylens85

Flywoo Flylens75 Cinewhoop Different Tpu 3d Printed Battery Holder 550 750 1000 Mah

Flywoo Flylens75 Cinewhoop Motor Front Flywoo Flylens75 Cinewhoop Micro Usb Fc Port Flywoo Flylens75 Cinewhoop Dji O3 Fpv Camera Protector Front

Flywoo Flylens75 Cinewhoop Antenna Mount Rear

Flywoo Flylens75 Cinewhoop Flight Controller

Installing DJI O3

The FlyLens 75 is designed to work with both the full and naked versions of the DJI O3 camera (using Flywoo’s own O3 Lite kit).

Installing the DJI O3 was straightforward, and the bottom mount offered easy access to the micro SD card and USB-C slot.

Flywoo Flylens75 Cinewhoop Install Dji O3 Connect Antenna

Flywoo Flylens75 Cinewhoop Bottom

Flywoo Flylens75 Cinewhoop Dji O3 Usb C Port

Flight Experience

On its maiden flight, the Flylens 75 showcased remarkable control and stability. Despite the compact size, the drone managed to handle windy conditions outdoors. However, the battery life was cut significantly when flying outdoor especially when it’s windy.

The drone flew quietly and efficiently indoor. In angle mode, navigating tight spaces with ease. Indoor flight time is around 4 to 5 minutes on 2S 750mah and 3 to 4 minutes on 550mAh.

Personally I prefer how it handles with the larger 2S 750mAh battery, suggesting that it might be tuned for a slightly heavier setup.

Flywoo Flylens75 Cinewhoop

How to Setup

It came with Betaflight 4.4.2, flight controller target is FLYWOOF405S_AIO. Original CLI dump can be found here.

Bind receiver following this guide https://oscarliang.com/bind-expresslrs-receivers/ If you wish to flash receiver firmware, the Device is Flywoo EL24P 2400 RX.

For my first flight, I changed the following settings:

  • In the Configuration tab, I adjusted the Arming Angle to 180 degrees.
  • In the Modes tab, I configured switches for arm and angle modes.

Conclusion

The Flywoo Flylens75 stands out as an impressive micro Cinewhoop. Its ability to carry a full DJI O3 camera, combined with its exceptional flight stability and quiet operation, makes it an excellent choice for indoor flying and tight-space navigation. While there are minor drawbacks, such as the lack of power and flight time in outdoor environment, the drone’s overall performance and capabilities make it a top contender in the 1.6-inch Cinewhoop category.

Get your Flylens75 from:

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5 comments

Michael 11th June 2024 - 5:12 am

Hi Oscar,

I have the Runcam Link wasp nano version – but I can’t seem to get the controller inputs mapped. Flylens doesnt have this on their documentation – and I have tried all the ports. Any suggestions?

Reply
Angelos Christou 5th June 2024 - 8:14 pm

Hi Oscar. Great review as always.
I managed to bind mine, however, it won’t arm.
When I press the arm button yaw, roll and pitch work but not the throttle.
Thanks.

Reply
Oscar 6th June 2024 - 4:16 pm

In Betaflight Configurator, Receiver tab, when you move the throttle stick does the Throttle value change in Betaflight?

Reply
Ian 16th February 2024 - 8:54 am

Hello,
currently I have BetaFPV Meteor75 with Walksnail. And I am quite happy with the performance. It is not really a light weight whoop but for cruising around playgrounds and making videos of kids (mine kids :D) it is perfect. There is literary no risk of injury other then some hair cut :D
But as Walksnail came with Moonlight, this would be a nice 4K solution with same size… But I am afraid of the increase weight and 2S. It is not that lightweight toy anymore.
May I ask you for your thoughts on this topic? Comparison between 75 mm HD tiny whoop and this 75 mm cinewhoop?
Thanks (:

Reply
Oscar 18th February 2024 - 3:32 pm

You probably want to upgrade to a 2S whoop in this case, the extra weight might be a bit much for 1S :)
There’re many options on the market, like the Pico Pavo, Flylens75, Acrobee75 etc… But I’m not sure how well they are compatible with the moonlight as they all came out before it.

Reply