Overview
The Sub250 OasisFly35 DC O4 Pro GPS Freestyle Quadcopter is a 3.5-inch FPV quad platform built around a DC frame design for cleaner visuals, with multi-VTX compatibility (Analog / O3 / O4 Pro) and GPS standard on all models for added flight confidence and RTH (GPS Rescue) support. For configuration help, please contact support@rcdrone.top or visit https://rcdrone.top/.
Key Features
- Multi-VTX compatible: supports Analog / O3 / O4 Pro VTX options for flexible setups and switching between scenarios.
- DC frame design for unobstructed visuals and a more immersive FPV view.
- Integrated printed side plates: protect internal electronics from debris, refine aerodynamics, and enhance cooling with directed airflow.
- Power system: 1804 motors paired with an efficient 45A ESC for responsive power delivery.
- GPS standard on all models; supports activating GPS Rescue via RC or preset conditions for flight safety in complex environments.
- Lens mount: CNC-machined high-strength 7-series aluminum for reinforced protection of the camera and airframe during impacts.
- Support 4K 120fps (as stated for the platform).
Specifications
OasisFly35 DC O4 Pro Version
| Model | OasisFly35 DC O4 Pro Version |
| Wheelbase | 175mm |
| Arm thickness | 3.5mm |
| Bottom plate | 1.5mm |
| Mid plate | 2.5mm |
| Top plate | 2.0mm |
| Motor mounting pattern | 9*9mm / 12*12mm |
| VTX | DJI O4 Pro |
| Motor | 1804 3450KV |
| Flight controller / AIO | RedFox A3 45A AIO |
| ESC firmware | BLHeli_32 |
| MCU | STM32F722 |
| IMU | ICM42688-P |
| Propeller | HQ 3.5*3.5*3 |
| Receiver | ELRS/PNP |
| GPS | SUB-M10 |
| Recommended battery | 4S 530mAh |
| Power connector | XT30 |
| Body weight | 194g |
| Takeoff weight | 245g (with 4S 530mAh battery) |
| Max flight time | 5min 20s |
| FC firmware | Betaflight_4.5.2-SUB250REDFOXF722AIO |
OasisFly35 DC WTFPV
| Model | OasisFly35 DC WTFPV |
| Wheelbase | 175mm |
| Arm thickness | 3.5mm |
| Bottom plate | 1.5mm |
| Mid plate | 2.5mm |
| Top plate | 2.0mm |
| Motor mounting pattern | 9*9mm / 12*12mm |
| VTX | / |
| Motor | 1804 3450KV |
| Flight controller / AIO | RedFox A3 45A AIO |
| ESC firmware | BLHeli_32 |
| MCU | STM32F722 |
| IMU | ICM42688-P |
| Propeller | HQ 3.5*3.5*3 |
| Receiver | ELRS/PNP |
| GPS | SUB-M10 |
| Recommended battery | 4S 530mAh |
| Power connector | XT30 |
| Body weight | 162g |
| Takeoff weight | 213g |
| Max flight time | / |
| FC firmware | Betaflight_4.5.2-SUB250REDFOXF722AIO |
OasisFly35 DC Analog Version
| Model | OasisFly35 DC Analog Version |
| Wheelbase | 175mm |
| Arm thickness | 3.5mm |
| Bottom plate | 1.5mm |
| Mid plate | 2.5mm |
| Top plate | 2.0mm |
| Motor mounting pattern | 9*9mm / 12*12mm |
| VTX | Sub250 Send T1600 & Caddx H1 |
| Motor | 1804 3450KV |
| Flight controller / AIO | RedFox A3 45A AIO |
| ESC firmware | BLHeli_32 |
| MCU | STM32F722 |
| IMU | ICM42688-P |
| Propeller | HQ 3.5*3.5*3 |
| Receiver | ELRS/PNP |
| GPS | SUB-M10 |
| Recommended battery | 4S 530mAh |
| Power connector | XT30 |
| Body weight | 188g |
| Takeoff weight | 239g |
| Max flight time | 7Min |
| FC firmware | Betaflight_4.5.2-SUB250REDFOXF722AIO |
What’s Included
O4 PRO Version – Product List (Not Including batteries)
- 1 × GPS Setup Manual
- 1 × Sub250 RedFox A3 AIO Manual
- 1 × Sub250 Rear Silicone Strap with Zinc-Alloy Buckle (11×170 mm)
- 1 × HQ T3.5×3.5×3 Propellers (2 CW + 2 CCW)
- 1 × Sub250 Redfox A3 AIO USB-C Adapter Board
- 1 × 45 mm Dual-End SH1.0-5P Cable
- 1 × Sub250 Merchandise Sticker
- 1 × Sub250 Drone Series Sticker
- 1 × Battery Anti-Slip Pad
- 1 × Sub250 OasisFly35 Lens Silicone Pad (50°)
- 1 × Landing Gear Vibration-Damping Pad (Pack)
- 1 × L-Shaped Hex Wrench (1.5 mm)
- 2 × M2×4×22 Aluminum Textured Standoff (Black)
- 1 × Spare Screw Pack
- 1 × OasisFly35 DC Analog Camera Mount (3D Print)
- 1 × Right Side Plate (Large)
- 1 × Left Side Plate (Large)
- 1 × Right Rear Side Plate
- 1 × Left Rear Side Plate
- 4 × TPU Landing Pads
Note: The OasisFly35 DC shown is the O4 Pro ELRS 2.4G version; actual accessories may vary by configuration.
Applications
- Freestyle practice
- Motion follow
- Outdoor cinematics
- Commercial filming
Manuals
- GPS Setup Manual (included)
- Sub250 RedFox A3 AIO Manual (included)
Videos
Details

OasisFly35 DC O4 Pro pairs a clean-view DC frame with GPS support for confident freestyle flights.

Integrated printed side plates help protect electronics while improving airflow for cooling and aerodynamics.

A CNC 7-series aluminum lens mount reinforces the front end to better protect the camera in hard landings.

Multi‑VTX compatibility makes it easy to build around Analog, O3, or O4 Pro video setups.

The 1804 motor platform is tuned for responsive thrust on a compact 3.5-inch freestyle build.

GPS comes standard, supporting GPS Rescue setup for extra peace of mind when flying in complex areas.

The DC frame layout is designed to keep the prop line out of view for cleaner HD footage.

Choose the version that matches your gear and flying style, from HD to analog setups.

Built to handle everything from practice sessions to smooth cinematic cruising.

A full spec breakdown helps you compare the O4 Pro, Analog, and WTFPV builds at a glance.

A clear look at the compact 3.5-inch layout, camera position, and antenna placement.

Multiple angles highlight the frame geometry and protected component placement.


Details





The Sub250 OasisFly35 uses 1804 brushless motors with an exploded housing design for compact, responsive propulsion.

A top-mounted GPS module supports GPS Rescue setup for added safety options during freestyle flights.

The OasisFly35 DC freestyle quadcopter features a clean top-mounted layout with four propellers and dual antenna mounts for tidy FPV setup.

The OasisFly35 comes in O4 Pro, Analog, or WTFPV versions so you can choose the video system that fits your setup.

The Sub250 OasisFly35 is positioned for freestyle practice, motion-follow shots, outdoor cinematics, and commercial filming scenarios.

OasisFly35 DC O4 Pro key specs include a 175mm wheelbase, Sub250 1804 3450KV motors, and an XT30 power connector.

The OasisFly35 freestyle quadcopter features a compact teal-and-black frame with an integrated front camera and dual rear antennas.

The OasisFly35 features a compact teal-and-black frame with a top battery strap and three-blade propellers for a tidy freestyle setup.

The OasisFly35 quadcopter features a compact carbon frame with a teal canopy, four tri-blade props, and rear-mounted antennas for a clean build layout.

The OasisFly35 DC package includes the quadcopter along with spare propellers, frame parts, mounting hardware, and a battery strap for a complete build setup.
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