GEPRC MARK5 O4 Pro: Wide X vs DC 5-Inch Drone Guide
Which GEPRC MARK5 O4 Pro should you buy: Wide X or DC? Both 5-inch freestyle quads share the same TAKER F722 BT 32-bit 50A stack, SPEEDX2 2107.5 1960KV motors and DJI O4 Air Unit Pro video system, so the choice comes down to shape and weight: the MARK5 O4 Pro Wide X runs a 225 mm wheelbase at 414 g for a tighter, snappier freestyle feel, while the MARK5 O4 Pro DC stretches to 230 mm at 433.4 g, accepts an optional GEP-M10 GPS and leaves more room for stable, flowy lines. This guide breaks down both versions, the electronics and the setup so you can order with confidence.
What is the GEPRC MARK5 O4 Pro?
The MARK5 O4 Pro is GEPRC’s 5-inch freestyle platform built specifically around the DJI O4 Air Unit Pro. The O4 Pro’s 1/1.3-inch sensor records up to 4K at 120 fps and transmits 1080p at 100 fps, bringing digital HD clarity to a class of quads that used to fly analog. GEPRC designed the airframe around the module rather than bolting it on: a newly machined aluminum camera mount with molded silicone damping minimizes the resonance that often plagues digital systems on freestyle machines. The result is a ready-to-fly BNF that pairs modern HD video with a proven F722 powertrain and features pilots actually use — Bluetooth tuning, quick-release arms and a dedicated compartment for the capacitor and buzzer.
How do the Wide X and DC versions differ?
The differences are mechanical, not electronic. The Wide X spreads its arms into a wide-X stance with a 225 mm wheelbase, weighs 414 g ± 5 g and uses an XT60H-M power connector. The DC version concentrates the motors in a stretched-X (DC) layout with a 230 mm wheelbase, weighs 433.4 g ± 5 g — about 19.4 g more — and switches to an XT60EW-M connector. Only the DC version lists an optional GEP-M10 GPS receiver in its specifications. Everything else is identical: same motors, props, stack, receiver options, 6S battery recommendation and emerald-green printed parts. In practice that 5 mm of extra wheelbase and 19 g of extra mass make the DC steadier in fast flow and better for carrying GPS, while the Wide X rotates marginally faster for tight freestyle lines.
| Spec | MARK5 O4 Pro Wide X | MARK5 O4 Pro DC |
|---|---|---|
| Wheelbase | 225 mm | 230 mm |
| Weight | 414 g ± 5 g | 433.4 g ± 5 g |
| VTX / Camera | DJI O4 Air Unit Pro module + camera + antenna | |
| FC | GEP-F722-BT-HD V3 (STM32F722, ICM42688-P SPI, AT7456E OSD) | |
| ESC | GEP-BL32 50A 96K 32-bit 4-in-1 | |
| Motors / Props | SPEEDX2 2107.5 1960KV + Gemfan 5136 | |
| Power connector | XT60H-M | XT60EW-M |
| GPS | Not listed | Optional GEP-M10 |
| Receiver | PNP / ELRS 2.4G / TBS NanoRX | |
| Battery | LiPo 6S 1050–1550 mAh | |
| Flight time | 6–8 minutes (slow cruising, reference only) | |
What electronics and power system does it use?
Both versions run the GEP-F722-BT-HD V3 flight controller on an STM32F722 with an ICM42688-P gyro over SPI and a BetaFlight OSD backed by the AT7456E chip — a stack layout explained in detail in our FPV flight controller guide. The pairing is the TAKER F722 BT 32-bit 50A ESC, a 96 kHz 4-in-1 that supports tuning straight from your phone over Bluetooth, so field adjustments no longer require a laptop. Power comes from four SPEEDX2 2107.5 1960KV motors swinging Gemfan 5136 props on a recommended LiPo 6S pack between 1050 and 1550 mAh — our LiPo battery guide covers how cell count and capacity affect punch and flight time. GEPRC quotes 6–8 minutes of flight time based on slow cruising tests, and notes the figure varies with flying style and environment. Receiver options cover every camp: PNP for your own radio link, ELRS 2.4G for low latency, or TBS NanoRX for Crossfire pilots.
Is the DJI O4 Air Unit Pro a good match for a 5-inch freestyle quad?
On this airframe, yes — because GEPRC engineered for it. The O4 Pro module delivers 4K 120 fps onboard recording and 1080p 100 fps transmission, and the two biggest historical complaints about putting digital HD on a freestyle quad are vibration-induced jello and added fragility. The MARK5 answers the first with an aluminum camera mount seated on molded silicone damping, and the frame’s optimized damping keeps the electronics isolated as well. The second is addressed by crash-oriented details: quick-release arms that swap with two screws, and a dedicated compartment that holds the capacitor and buzzer stable so wiring does not shake loose. If you prefer to stay analog on a similar budget, our GEPRC MATEN VTX guide shows how to build a powerful 5.8 GHz or 3.3 GHz link instead.
Which MARK5 version fits your flying style?
Choose Wide X for technical freestyle
The 225 mm wide-X stance and 414 g weight give the motors the least inertia to swing, which shows up as sharper stops, faster flips and a more playful feel around gaps and poles. If your sessions are mostly power loops, mattys and proximity freestyle, the Wide X is the lighter, tighter tool.
Choose DC for flow, range and GPS
The 230 mm DC layout carries its 433.4 g with more stability in fast forward flight and long sweeping lines, and it is the only version with an optional GEP-M10 GPS — worth adding if you want position hold or a rescue aid, as covered in our FPV GPS module guide. For cinematic cruising and mixed freestyle with an O4 Pro camera rolling 4K, the DC is the more versatile platform.
How should you set it up for the first flight?
Start with the video link: bind the O4 Air Unit Pro to your DJI goggles, then set the camera angle to match your grip. Next, pick your receiver variant at purchase — PNP, ELRS 2.4G or TBS NanoRX — and bind it to your radio. Use the Bluetooth app connection of the F722 BT stack for motor direction, flight modes and filtering before you even open Betaflight on a laptop. Choose a fresh 6S pack in the 1050–1550 mAh range, verify the XT60 connector variant matches your batteries, and check arm screws after the first hard landing — the two-screw quick-release arms make that a 30-second job. If you later want to compare frame geometry or move up in size for long range, read our FPV frame buying guide and the GEPRC MOZ7 V2 long-range guide.
Frequently Asked Questions
What is the difference between the MARK5 O4 Pro Wide X and DC?
Wheelbase, weight, connector and GPS option. Wide X: 225 mm, 414 g, XT60H-M, no GPS listed. DC: 230 mm, 433.4 g, XT60EW-M, optional GEP-M10 GPS. Motors, props, flight controller, ESC, receiver options and battery recommendation are identical.
What battery does the GEPRC MARK5 O4 Pro need?
A 6S LiPo between 1050 and 1550 mAh. GEPRC quotes 6–8 minutes of flight time from slow cruising tests; expect less with aggressive freestyle. Note the connector differs by version: XT60H-M on the Wide X and XT60EW-M on the DC.
Can the MARK5 O4 Pro record 4K video?
Yes. The onboard DJI O4 Air Unit Pro with its 1/1.3-inch sensor records up to 4K at 120 fps while transmitting 1080p at 100 fps to DJI goggles, so the same flight doubles as freestyle footage.
Do I need a laptop to tune the MARK5 O4 Pro?
Not for basic tuning. The GEP-F722-BT-HD V3 flight controller and TAKER F722 BT 32-bit 50A ESC support Bluetooth configuration from a mobile app, which covers motor direction, modes and most adjustments; Betaflight on a computer remains useful for advanced work and firmware.
Is the MARK5 O4 Pro good for beginners?
It suits pilots moving up from whoops or tiny whoops into full-size 5-inch HD freestyle. Quick-release arms ease crash repairs, Bluetooth tuning lowers the setup barrier, and the O4 Pro link is forgiving. Complete beginners should still learn on a simulator first, since 1960KV motors on 6S have serious power.
Which GEPRC MARK5 should you buy?
Buy the Wide X if technical freestyle is your main course; buy the DC if you want steadier flow, 4K cruising and the GPS option. Both deliver the same O4 Pro HD video, Bluetooth-tuned F722 stack and quick-release convenience in an emerald-green package. Questions about receiver options or bulk pricing? Contact our team and we will confirm fit before you order.