
HAPPYMODEL
Happymodel Crux35 HD version Nebula+Vista 3.5 Inch 4S EX1404 KV3500 Micro Freestyle FPV Racing Drone - SPI ExpressLRS 2.4GHz Receiver
Reviewed byOrganicDiscount TeamUpdated 27 Jun 2026
Best price available
£276.00
Key features
- High efficiency EX1404 power system
- Can be equipped with Naked Gopro or SMO4KSupport 3-4S battery 4S 750mah battery is recommended
Product Overview
Happymodel Crux35 HD version CRUX35 HD is an ultra-lightweight 3.5Inch FPV Freestyle FPV Racing Drone, the weight of the whole drone is only 87g for the analog version and 108g for the digital HD version. The Crux35 serials drone use Happymodel EX1404 high-efficiency motor and HQPROP 3.5-inch three-blade propeller to ensure the largest thrust-to-weight ratio under the most efficient premise, which can bring you a smooth Freestyle flying experience.The HD version is equipped with CADDXFPV Nebula and Vista HD image transmission system. The receiver version can be SPI ExpressLRS and SPI Frsky (S-FHSS compatible) for choose.ExpressLRS is the most popular RC link system by now , it could performance very well with Crux35 and Crux35 HD.
Full Feature List
- Ultra-lightweight 3.5-inch BNF FPV Freestyle DroneHD video transmission Integrated ExpressLRS SPI receiver or Frsky SPI D8/D16 receiver
- High efficiency EX1404 power system
- Can be equipped with Naked Gopro or SMO4KSupport 3-4S battery 4S 750mah battery is recommended
- maximum support 4S 1100mah(The battery not Include) Recommend Battery:GNB 1100Mah 4S 15.2V 60C/120C Lihv Lipo Battery with XT30 Plug
Specifications
- Brand: HappymodelProduct name: Crux35 HDWheelbase: 150mmWeight: Crux35 HD 108gramSize:130mmx130mmx45mm(without propellers)Receiver option: SPI ExpressLRS 2.4GHz SPI Frsky D8/D16 (S-FHSS compatible)Camera:HD version Nebula+VistaFlying time: 9min~15min 4s 750mah battery(The battery not Include) Motor:Mode: EX1404KV options: KV3500Configu-ration:9N12PStator Diamter:14mmStator Length:4mmShaft Diameter: Φ1.5mmMotor Dimension(Dia.*Len):Φ15mm*15mmWeight(g):9g PropellersPropeller Diameter: 3.5 inch Pitch : 2 Blades : 3Material : Poly Carbonate Weight : 1.5gHub Diameter : 10mm Hub Thickness:4.7mm Shaft :1.9/1.5/1.9mmAdaptor Rings : NO Flight controller(ELRS Version)MCU:STM32F411CEU6 (100MHZ, 512K FLASH)Sensor: MPU-6000(SPI connection)Mount pattern: 20x20 M2Size:32*28*9mmPower supply: 2-4S Lipo batteryBuilt-in 12A Blheli_s ESC eachBuilt-in Betaflight OSD(SPI Control)Built-in SPI ExpressLRS 2.4GHz receiverBuilt-in 5V 1A BECFlight controller firmware target: CRAZYBEEF4SX1280 Flight controller(Frsky version)MCU:STM32F411CEU6 (100MHZ, 512K FLASH)Sensor: MPU-6000(SPI connection)Board size: 28.5 * 28.5MMPower supply: 2-4S battery input (DC 8V-17V)Built-in 20A(each) Blheli_S 4in1 ESC Dshot600 readyBuilt-in Frsky D8/D16 SPI receiverBuilt-in 2.4G Power AmplificationBuilt-in Betaflight OSD(SPI Control)Built-in Current meterBuilt-in 5V 1.5A BECBuilt-in voltage detectionFirmware target: MATEKF411RX Onboard 4in1 ESCMCU upgraded to EFM8BB21Power supply: 1S LiPo/LiPo HVCurrent: 5A continuous peak 6A (3 seconds)Support BLHeliSuite programmableFactory firmware: O_H_5_REV16_8.HEXDefault protocol: DSHOT300 Onboard SPI ExpressLRS 2.4GHz Receiver(ELRS version)Packet Rate option: 25Hz/50Hz/150Hz/250Hz/500HzRF Frequency: 2.4GHzAntenna : SMD antennaTelemetry output Power: <12dBmReceiver protocol to flight controller: CRSFCould bind with Happymodel ES24TX , ES24TX Lite, ES24TX Slim and DIY 2.4GHz ELRS TX module Onboard SPI Frsky 2.4GHz receiver(Frsky Version)SPI BUS receiverFrsky D8/D16/EU-LBT/, Futaba S-FHSS switchable on BetaflightChannels: 8ch/16chDual antennaFailsafe supportNo ground interference ( Transmitter and receiver 1 m from the ground): 400m CaddxFPV Digital HD Camera Nebula Nano Kit(Digital HD version)Weight(camera included]: 24gAntenna: 2.3gDimensions: Vista Kit 30×29×13mm Camera 14×14×21mmOperating Frequency: 5.725-5.850GHzTransmitter Power[EIRP]: FCC/SRRC/MIC:<30dBm CE:<14dBmMin.latencylend-to-end) 720p 60fps:32msMax.Transmission Distance FcC/SRRC: 4km CE:0.7kmlnput Power: 7.4-26.4VPower Output: 25mW/200mW/500mW/700mwGoggles : Work with DJl gogglesCameraSensor: 1/3”CMOSLens:2.1mm,f/2.1Shutter:Rolling shutterFOV:142°(D);122°(H);75°(V)LHCP antenna
What's in the Box
1*Crux35 FrameOption1: ELRS X1 flight controllerOption2: CrazyF411 flight controller1*CaddxFPV Digital HD Camera Nebula Nano Kit1*Happymodel OVX303 5.8G analog VTX4*Happymodel EX1404 KV3500 brushless motor1*HQProp T3.5X2X3Grey (4cw+4ccw)1*Screw Driver1*Buckle Velcro for battery
Pros & Cons
Pros
- High efficiency EX1404 power system
- Can be equipped with Naked Gopro or SMO4KSupport 3-4S battery 4S
Cons
- Currently sold by only one merchant — limited price competition
- No customer reviews yet
- Price history not yet established
Price Analysis
Fair Price
The current price is around the average. It's a reasonable time to buy.
Current Best
£276.00
Average Price
£276.00
Lowest Ever
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Highest Ever
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Compare Prices (1 merchant)
Compare prices for Happymodel Crux35 HD version Nebula+Vista 3.5 Inch 4S EX1404 KV3500 Micro Freestyle FPV Racing Drone - SPI ExpressLRS 2.4GHz Receiver
| Merchant | Price | Shipping | Total | Status | |
|---|---|---|---|---|---|
Ma Makerfire Best Price | £276.00 | — | £276.00 | Out of Stock | Go to Store |
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Product Details
| Brand | HAPPYMODEL |
| Merchant | Makerfire |
| MPN | 6852621 |
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