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 drón 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 drón (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 drón (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+