Flywoo FlyLens 75 HD O4

Flywoo builds the FlyLens 75 around its GOKU F405 HD 1-2S 12A AIO V2 flight controller — F405 BGA MCU, ICM42688P gyro, 12A BLHeli_S/Bluejay ESC, 8MB blackbox, barometer, and a 9V 2A BEC that cleanly powers the DJI air unit — driving ROBO 1003 14800KV motors on 40mm tri-blade props. The modular carbon fiber and PC frame assembles with five screws; Flywoo doesn't publish an exact wheelbase, so the '75' is a name class.

The video system is the standard DJI O4 Air Unit, not the O4 Pro: 4K/60fps recording, a 117.6-degree FOV, 100Mbps max bitrate, and 23GB of fixed internal storage with no microSD slot. A three-point CNC shock-absorbed camera mount is designed to suppress the O4 unit's high-frequency vibration sensitivity for jello-free recording. An 'O4 Wide' variant swaps in a wider 155-degree lens, and Flywoo also sells a separate, distinct FlyLens 75 O4 Pro model.

In the air this is an indoor and tight-space machine. The quick-release battery bay ships with TPU mounts for 2S 550mAh, 750mAh, and 1000mAh packs, trading weight against Flywoo's claimed 4 to 6.5 minute flight times while keeping takeoff under 100g. An independent review of the same frame platform (O3 version) found it quiet, stable, and crash-resistant indoors with its flexible Y-structure prop ducts, but underpowered and short on flight time outdoors, especially in wind.

On the radio side, the ELRS 2.4GHz receiver is serial/UART (CRSF protocol) rather than SPI, so it takes standard ExpressLRS configurator updates and provides full telemetry; DJI PNP (receiverless) and TBS CRSF builds are also offered. The frame kit is shared across the O3 Lite, O4, and O4 Pro versions, which keeps spares easy to source.