Sub250 OasisFly35 3.5" DC Cinewhoop GPS O4 Pro 4S 1804 RedFox 45A AIO
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3.5-Inch DC Cinewhoop with GPS, DJI O4 Pro & RedFox 45A AIO - Sub-250g Capable
The Sub250 OasisFly35 is a premium 3.5-inch DC (Digital Cinewhoop) FPV drone featuring a 175mm wheelbase, 1804 3450KV brushless motors, RedFox A3 45A AIO flight stack (STM32F722 + ICM42688-P), SUB-M10 GPS module, and compatibility with DJI O4 Pro, O3, and Analog video systems. Available in four configurations — WTFPV ELRS, WTFPV PNP, O4 Pro ELRS, and O4 Pro PNP — the OasisFly35 delivers clean wide-angle visuals, fast throttle response, and GPS-assisted return-to-home in a compact, impact-resistant DC frame design.
Key Features
- 175mm DC Frame - Clean visuals and heightened flight immersion
- 1804 3450KV Motors - Strong thrust and fast response
- RedFox A3 45A AIO - STM32F722 + ICM42688-P + BLHeli_32
- SUB-M10 GPS - Reliable RTH in any environment
- O4 Pro / O3 / Analog Compatible - Switch freely between systems
- HQ 3.5×3.5×3 Props - Optimized for 3.5-inch performance
- 4S XT30 Power - Efficient and powerful
- Betaflight 4.5.2 - Latest firmware pre-configured
- Integrated Side-Plate Structure - Aerodynamic and impact-resistant
- 213-245g Takeoff Weight - Near sub-250g compliance
- ELRS 2.4GHz or PNP - Receiver options available
- 4 TPU Landing Pads - Included for protection
Perfect For
- Cinematic FPV videography
- GPS-assisted long-range flying
- Return-to-home safety
- Indoor and outdoor cinewhoop flying
- DJI O4 Pro digital FPV
- Freestyle with GPS backup
- Pilots wanting sub-250g-class performance
- Expert FPV pilots
Configuration Options
WTFPV ELRS 2.4G - $305
- No VTX, camera, or antenna included
- ELRS 2.4GHz receiver integrated
- Body weight: 162g | Takeoff weight: 213g
- Bring your own video system (Analog, O3, or O4 Pro)
- Maximum flexibility for custom builds
WTFPV PNP - $290
- No VTX, camera, antenna, or receiver
- Body weight: 162g | Takeoff weight: 213g
- Bring your own video system and receiver
- Most affordable entry point
O4 Pro ELRS 2.4G - $710
- DJI O4 Pro Air Unit included
- ELRS 2.4GHz receiver integrated
- Body weight: 194g | Takeoff weight: 245g (with 4S 530mAh)
- Max flight time: ~5min 20sec
- Complete digital FPV setup ready to fly
O4 Pro PNP - $694
- DJI O4 Pro Air Unit included
- Plug-and-play (bring your own receiver)
- Body weight: 194g | Takeoff weight: 245g
- Digital FPV ready, add your preferred receiver
Technical Specifications
Frame
- Model: OasisFly35 DC
- Wheelbase: 175mm
- Propeller Size: 3.5-inch
- Arm Thickness: 3.5mm
- Bottom Plate: 1.5mm
- Mid Plate: 2.5mm
- Top Plate: 2.0mm
- Motor Mount Pattern: 9×9mm / 12×12mm
- Material: Carbon fiber
Flight Controller - RedFox A3 45A AIO
- MCU: STM32F722
- IMU: ICM42688-P
- ESC: 45A integrated
- ESC Firmware: BLHeli_32
- FC Firmware: Betaflight 4.5.2 (SUB250REDFOXF722AIO)
- Connector: USB-C adapter board included
Motors & Props
- Motor: 1804 3450KV brushless
- Propeller: HQ T3.5×3.5×3 (2 CW + 2 CCW included)
- Motor Type: Brushless
GPS
- Module: SUB-M10
- Functions: Return-to-home, position hold, GPS rescue
- Standard: Included across all configurations
Power
- Recommended Battery: 4S 530mAh LiPo
- Connector: XT30
- Voltage: 4S optimized
Video Systems
- O4 Pro versions: DJI O4 Pro Air Unit
- WTFPV versions: No VTX/camera/antenna (bring your own)
- Compatible: Analog, DJI O3, DJI O4 Pro
- Camera Mount: OasisFly35 DC Analog Camera Mount (3D print) included
Weight & Performance
- WTFPV Body Weight: 162g
- WTFPV Takeoff Weight: 213g (with battery)
- O4 Pro Body Weight: 194g
- O4 Pro Takeoff Weight: 245g (with 4S 530mAh)
- Max Flight Time (O4 Pro): ~5 minutes 20 seconds
- Control Channels: 8 channels
Advanced Features
DC Frame Design
The DC (Digital Cinewhoop) frame design features an integrated side-plate structure that combines aerodynamics with durability. The design protects core components during impacts while delivering clean, wide-angle visuals with heightened flight immersion. The structural side plates absorb crash energy, keeping your electronics safe through hard landings and collisions.
RedFox A3 45A AIO Stack
The RedFox A3 AIO combines an STM32F722 flight controller with ICM42688-P IMU and 45A BLHeli_32 ESC in a single compact board. The F722 processor handles Betaflight 4.5.2 with ease, while the ICM42688-P delivers exceptional gyro performance for smooth, precise flight characteristics. The 45A ESC rating provides ample headroom for aggressive flying.
SUB-M10 GPS Module
Standard GPS across all OasisFly35 configurations enables confident flying with GPS rescue, return-to-home, and position hold. The SUB-M10 module provides reliable satellite acquisition for safe operations in complex environments, giving pilots peace of mind during long-range or high-altitude flights.
Multi-VTX Compatibility
The OasisFly35 supports Analog, DJI O3, and DJI O4 Pro video systems, allowing pilots to switch freely between scenarios. The WTFPV versions provide a clean platform for pilots who already own their preferred video system, while O4 Pro versions come complete with the latest DJI digital FPV technology.
1804 3450KV Motors
High-efficiency 1804 3450KV brushless motors deliver strong thrust and fast throttle response optimized for 3.5-inch propellers on 4S power. The motor and ESC combination ensures quick response for all flight maneuvers from smooth cinematic glides to aggressive freestyle moves.
What's Included
O4 Pro Versions Include
- 1× OasisFly35 DC drone (fully assembled)
- 1× DJI O4 Pro Air Unit
- 1× GPS Setup Manual
- 1× Sub250 RedFox A3 AIO Manual
- 1× Rear Silicone Strap with Zinc-Alloy Buckle (11×170mm)
- 1× HQ T3.5×3.5×3 Propellers (2 CW + 2 CCW)
- 1× RedFox A3 AIO USB-C Adapter Board
- 1× 45mm Dual-End SH1.0-5P Cable
- 1× Sub250 Merchandise Sticker
- 1× Battery Anti-Slip Pad
- 1× OasisFly35 Lens Silicone Pad (50°)
- 1× Landing Gear Vibration-Damping Pad Pack
- 1× L-Shaped Hex Wrench (1.5mm)
- 2× M2×4×22 Aluminum Textured Standoffs (Black)
- 1× Spare Screw Pack
- 1× OasisFly35 DC Analog Camera Mount (3D Print)
- Side plates (right large, left large, right rear, left rear)
- 4× TPU Landing Pads
WTFPV Versions Include
- 1× OasisFly35 DC drone (no VTX/camera/antenna)
- All hardware accessories listed above (except O4 Pro Air Unit)
- Note: VTX, camera, and antenna must be sourced separately
What You'll Need
- 4S LiPo battery (530mAh recommended)
- 4S LiPo charger
- ELRS 2.4GHz radio transmitter (ELRS versions)
- Radio transmitter + receiver (PNP versions)
- DJI FPV Goggles (O4 Pro versions)
- FPV goggles (WTFPV versions, matching your VTX)
- VTX, camera, and antenna (WTFPV versions only)
Important Notes
- Sub250 OasisFly35 3.5-inch DC cinewhoop
- 175mm wheelbase carbon fiber frame
- 1804 3450KV brushless motors
- RedFox A3 45A AIO (STM32F722 + ICM42688-P + BLHeli_32)
- SUB-M10 GPS module (all versions)
- HQ T3.5×3.5×3 propellers
- 4S XT30 power connector
- Betaflight 4.5.2 pre-configured
- WTFPV versions: no VTX, camera, or antenna included
- O4 Pro versions: DJI O4 Pro Air Unit included
- ELRS versions: ELRS 2.4GHz receiver integrated
- PNP versions: bring your own receiver
- WTFPV takeoff weight: 213g | O4 Pro takeoff weight: 245g
- O4 Pro max flight time: ~5min 20sec
- Compatible with Analog, O3, and O4 Pro video systems
- Battery and charger not included
- Expert skill level recommended
- Recommended for ages 14+
Shipping Policy
Estimated Delivery: Orders typically arrive within 3-7 business days to most locations in North America.
International Shipping: Available with tracking. Transit times vary by destination.
Return & Guarantee Policy
Money-Back Guarantee: Not satisfied? We offer a 30-day return policy for a full refund or exchange.
Technical Support: Need help with compatibility or setup? Contact our FPV experts for free assistance.
