Relating to 5-inch BNF drones with the DJI O4 system, I in contrast all of the obtainable choices and concluded that the GEPRC Vapor D5 was the perfect decide for me. So, I made a decision to purchased one and see the way it truly performs. On this evaluation, I’ll stroll you thru my expertise—protecting its design, construct high quality, flight efficiency, and setup course of. For those who’re contemplating this drone, this deep dive ought to assist you determine if it’s price it.
If you wish to see my thought course of on selecting this drone and in contrast it with different choices, see this submit: https://oscarliang.com/5inch-bnf-dji-o4-pro-comparison-feb-2025/
The place to Purchase
You should buy the GEPRC Vapor D5 from these distributors:
The GEPRC Vapor D5 comes these equipment:
- GEPRC Vapor D5 drone
- Two units of Gemfan Vanny Model 5136 props
- 2x battery straps
- 2x sticky battery pads
- 2x spare facet panels (black)
- GoPro mount
- Hex keys (2x)
- Prop wrench
- Additional screws
- Pointed device for urgent the bind button on the O4
- Manuals
- Stickers & keyring
Specs
- Wheelbase: 238mm
- Carbon Plate Thickness: 2.0mm (prime/center), 2.5mm (backside), 5.0mm (arms)
- Flight Controller: GEP-F722-HD v2
- MCU: STM32F722
- Gyro: ICM42688-P (SPI)
- Barometer: Sure
- OSD: Betaflight OSD with AT7456E
- ESC: TAKER H60_BLS 60A 4IN1 ESC
- VTX and Digicam: DJI O4 Air Unit Professional
- Battery Connector: XT60
- Motors: GEPRC SPEEDX2 2207E 1960KV
- Props: GEMFAN 5136
- Non-obligatory GPS: GEP-M10 GPS
- Receiver Choices PNP / GEPRC ELRS24 / TBS Nano RX
- Really helpful Battery 6S LiPo 1300mAh – 1800mAh
- Flight Time 14–19 minutes
- Weight:
- With out Battery: 488.4g
- With 6S 1100mAh LiPo: 698g
- With GoPro Hero 13 and 6S 1100mAh: 865g
Design and Construct High quality
Body
The Vapor D5 contains a lifeless cat body, which means the entrance props keep out of the digicam’s view, making it good for cinematic flying. The chunky prime plate and vibrant orange facet panels give it an aggressive, futuristic look.
- Carbon fiber arms: 5mm thick, sturdy, and inflexible.
- Prime & backside plates: 2mm and a couple of.5mm thick for strong influence resistance.
- Entrance CNC aluminum digicam mount with gentle mounts: Safe and protects the delicate DJI O4 Professional digicam.
- TPU antenna mounts: Versatile and designed to accommodate numerous antenna sorts.
Design Particulars
The SD card slot and USB-C port of the O4 Professional Air Unit are conveniently positioned, making system entry fast and hassle-free.
The battery strap placement forces the LiPo to take a seat barely towards the rear when utilizing a typical 6S 1100mAh battery. At first look, this may make the quad seem back-heavy, however surprisingly, the load distribution continues to be completely balanced as a result of forward-mounted digicam.
That mentioned, there’s loads of house on the highest plate, and if you happen to’re not utilizing a GoPro, you may simply match a bigger battery for prolonged flight time. A 6S 3000-4000mAh Li-ion pack can be good for long-range flights.
One Design Flaw: Receiver Antenna Placement
If there’s one factor I don’t like about this quad, it’s the receiver antenna placement—it looks like a lazy design selection.
Positive, it’s going to in all probability work nice for shut vary flying like 1 to 2 kilometers, however this drone has a lot long-range potential (particularly with a big Li-ion battery), and an optimized antenna placement may considerably enhance vary and sign reliability.
Suggestion: Mounting the receiver antenna vertically to 1 facet would assist stop sign blockage from different elements and maximize vary.
Internals and Electronics
Accessing the electronics is simple—merely take away the highest plate, which is secured by 10 bolts.
Lastly a BNF quad with out pointless RGB LEDs—a refreshing change within the FPV world. And the facet plates are detachable – doubtlessly saving you over 15 grams!
All elements are related by way of connectors, apart from the GPS, which is soldered to the board beneath. Logical and sensible wire/capacitor placement—nice consideration to element within the design.
Soldering and construct high quality are top-notch—GEPRC clearly put thought into the design. FC boot button is definitely accessible—it faces outward to the facet, so there’s no must take away the highest plate to press it. And it features a buzzer—an often-overlooked however extremely helpful function.
Points & Annoyances
FC USB Port Cutout is Too Small
The facet plate cutout for the FC USB port is just 11x6mm, making it too tight for many cables. I needed to strive like 4 or 5 completely different cables earlier than discovering one that hardly match. For those who don’t have a USB cable with slim connector, you’ll must take away the facet plate simply to hook up with Betaflight Configurator—not a deal breaker however annoying nonetheless.
USB Energy Doesn’t Provide Receiver or GPS
The USB connection doesn’t energy the receiver or GPS—you could plug in a LiPo for these to operate. Not a significant situation, but it surely makes bench testing and setup barely extra inconvenient.
Flight Efficiency
First Flight Impression
My first flight expertise with the GEPRC Vapor D5 was nothing in need of exhilarating. Powered by a 6S 1100mAh battery, the quad felt extremely responsive and highly effective. No jello or noticeable vibrations, even when pushed to the restrict. Surprisingly quiet in comparison with different 6S 5-inch FPV drones—presumably on account of body design and aerodynamics.
- Hover throttle: ~19%
- Prime velocity: ~165 km/h
It’s quick, however not absolutely the quickest 5-inch quad I’ve examined. Given the excessive KV motors, I anticipated a bit extra velocity, however the bigger/heavier body in all probability stability issues out.
Tuning
Out of the field, the GEPRC Vapor D5 is well-tuned, flying easily and responsively. I’d say it’s an amazing possibility for each cinematic flying and freestyle. Motors keep cool—even after 3 minutes of aggressive freestyle, they barely get heat. Inventory tune is strong—most pilots in all probability gained’t must tweak a lot except they need most efficiency.
That mentioned, there’s nonetheless room for enchancment. There’s minor instability when recovering from lengthy dives and sharp turns—not a deal-breaker, however noticeable. Tuning changes may assist, however with correct piloting, you may masks these imperfections. For cinematic flying, this gained’t matter a lot—these strikes aren’t usually utilized in clean, cinematic flight kinds.
Effectivity and Flight Time
If there’s one main draw back, it’s flight time—the Vapor D5 isn’t probably the most environment friendly quad. GEPRC claims as much as 14 minutes of flight time, however that’s possible in low-throttle cruising situations with a giant battery. With a typical 6S 1100mAh battery, I acquired solely about 3 minutes of flight time when flying aggressively, and about 4 minutes if I ease off throttle. With a 6S 4000mAh Li-ion battery, flight time improves to 12-13 minutes—it’s okay for some mid to long-range flights.
Why is it inefficient? Three fundamental causes:
- Massive body—extra air resistance.
- Comparatively heavy weight—motors must work tougher to take care of velocity.
- Excessive KV motors—extra energy, however much less effectivity particularly at mid to excessive throttle.
Additionally, the present sensor appeared to overestimate amp draw—I needed to improve the present sensor scale to 195 to handle this situation.
GPS
Though the FC USB port doesn’t energy the GPS, I used to be pleasantly shocked by its wonderful efficiency at how fast it will get a repair:
- 3D repair (8 satellites) inside a minute of plugging within the LiPo—even with the VTX powered on on the similar time.
- After 5 minutes, it locked onto 23 satellites—distinctive efficiency for a BNF drone.
This implies that GEPRC is utilizing a high-quality M10 GPS module, which is good for Betaflight Rescue Mode. For long-range pilots, this robust GPS efficiency is a significant benefit, making certain a dependable return-to-home failsafe.
The GPS mount additionally has adjustable tilt angle which ensures it stay stage throughout flight.
Setup
Out of the Field Setup
Earlier than the primary flight, I did the next:
- Eliminated all labels on the drone.
- Eliminated the motor course playing cards—these point out the motor spin course (which is utilizing Betaflight default – props in).
- Eliminated the protecting movie from the digicam lens.
- Put in the 2 O4 antennas within the 3D-printed TPU mount (keep away from sharp bends within the wires).
- Positioned the battery pad on the highest plate.
- Put in the 2 battery straps—if you happen to’re having bother becoming them by the holes, simply take away the highest plate first.
Firmware
- The flight controller (FC) board goal is GEPRCF722, and it comes preloaded with Betaflight firmware model 4.5.1. For inventory CLI Diff, see right here.
- ESC Firmware: ESC 1: B-X-30 – Bluejay, 0.21.0, 48kHz
- ELRS Receiver Firmware Goal: GEPRC Nano 2.4GHz PA100 RX, firmware 3.4.2
Betaflight Setup
Enhancements & Modifications
Out of the field, the GEPRC Vapor D5 is already a superb FPV drone—for many pilots, you may set it up, fly it, and have enjoyable instantly.
Nonetheless, like each BNF drone, there’s at all times room for enhancements. I’ve just a few concepts tips on how to make it higher, particularly for effectivity and lengthy vary functionality. As an illustration to make it lighter, then re-tune PID and filters to maximise efficiency. Cut back motor output since this drone comes with actually excessive KV motors. And so forth…
Would you be excited by a separate submit on these modifications? Let me know!
Closing Ideas
Earlier than buying the GEPRC Vapor D5, I totally analyzed its specs, design, and total worth—and after flying it, my expectations had been confirmed. That mentioned, some minor design flaws solely develop into obvious after hands-on testing, as talked about within the evaluation.
Amongst all of the 5-inch DJI O4 BNF drones I in contrast, the Vapor D5 provides the perfect stability of worth and efficiency. It’s obtainable for $450, whereas related choices from iFlight can go for over $600. It’s only a no brainer.
You should buy the GEPRC Vapor D5 from these distributors:
Is It Value It? Completely. The mixture of a sturdy construct, revolutionary design, and very good flight efficiency makes it a superb selection for each freestyle pilots and people seeking to seize cinematic footage with the DJI O4 Professional digicam. The primary draw back for me can be flight time and effectivity. However if you happen to put a sufficiently big battery on this factor it might probably nonetheless fly for 12 minutes or extra, with its dependable GPS module, it may be a fairly good mid to lengthy vary FPV drone.
