The OddityRC XI20 Pro HD O4 Pro Version 4S is a compact 2-inch cinewhoop with DJI O4 Air Unit Pro included. It combines Spinnybois 1205 5500KV motors, an OddityRC F7 40A AIO and Gemfan D51-4 propellers. It is a starting point for pilots who want a small guarded filming platform and already have, or plan to buy, compatible control and viewing equipment.
For a small cinewhoop, usable footage depends on more than the camera's recording resolution. Propeller condition, vibration, camera mounting and battery choice all deserve attention. The XI20's product-specific propeller notice makes that especially relevant.
In this guide: configuration · footage · equipment · first flights · FAQ
XI20 Pro O4 Pro: what is in the configuration?
| Item | Listed specification |
|---|---|
| Aircraft format | 2-inch cinewhoop |
| Power configuration | 4S |
| Motors | Spinnybois 1205 5500KV |
| Flight controller / ESC | OddityRC F7 40A AIO |
| Video system | DJI O4 Air Unit Pro included |
| Recommended propeller | Gemfan D51-4 |
| Recommended battery | 4S 650–850mAh |
| Receiver choices | PNP / ELRS 2.4G / ELRS 915M / TBS Nano RX |
The package lists the drone, D51-4 propellers, a spare screw kit and a spare prop guard. Budget for the battery, charger, compatible goggles and radio equipment separately; check the selected receiver before checkout.
Why the D51-4 propeller recommendation matters
OddityRC recommends Gemfan D51-4 for the XI20 O4 version and warns that D51 five-blade props may cause jello in O4 footage. That is a useful model-specific detail when buying spares. More blades are not automatically a better filming choice.
Start with the listed propeller rather than changing several parts at once. If footage develops a wobbling or rippling appearance after a crash, inspect the props for damage, confirm nothing rubs the guards, and inspect the camera mount and frame. A useful troubleshooting record includes the fitted props, battery, recording settings and the point at which the issue first appeared.
DJI lists a 1/1.3-inch sensor and recording up to 4K/120fps for the O4 Air Unit Pro. Those are camera-system capabilities, not a guarantee of vibration-free footage from every aircraft setup. See DJI's O4 specifications for recording modes and conditions.
Treat the video link and control link as two choices
The O4 Pro video system is included in this listing. A receiver selection still needs to match your radio system. PNP means no receiver is included; you install your own compatible receiver. It does not mean that the O4 Pro is missing.
For an ELRS setup, match the transmitter and receiver's frequency band and compatible firmware configuration. UART-based ELRS receivers communicate with the FC using CRSF; installation and setup should follow the exact board and receiver documentation. See the official ExpressLRS FC configuration guide.
Check your exact goggles against DJI's current compatibility FAQ. Owning another DJI product does not by itself establish O4 compatibility.
Plan a small-aircraft filming workflow
Begin within the listed 4S 650–850mAh battery range, checking the connector, dimensions and secure mounting. Record the actual ready-to-fly weight with that pack. A capacity number alone does not tell you how the aircraft will balance or how long your particular shot will last.
Use a short repeatable practice route to assess framing, throttle control and footage before committing to a demanding shot. Check recordings after changing a propeller or mount. Keep spare D51-4 props and the relevant guard available so a simple damaged part does not end a planned session.
A compact guarded aircraft still requires a suitable flying area and a clear route. Guards are part of the aircraft's design, not permission to fly close to people.
Frequently asked questions
Does this XI20 Pro include DJI O4 Pro?
Yes. The HD O4 Pro Version 4S listing discussed here includes it. The XI20 without O4 Pro is a separate product.
Which props should I buy for the O4 version?
Start with Gemfan D51-4. The current product notice warns against assuming the D51 five-blade option will give clean O4 footage.
Is the XI20 Pro automatically under 250g?
Do not infer takeoff weight from its 2-inch size. Weigh your complete aircraft with the actual battery and accessories.
How do I choose the receiver option?
Select a receiver compatible with your radio, or choose PNP if you will install your own. Confirm the exact configuration on the XI20 Pro O4 Pro product page.
Sources and related reading
Specifications checked on 26 October 2026: OddityRC XI20 Pro O4 Pro. Camera and receiver references are linked above. For the next size in the range, read our XI25 Pro filming-setup introduction.
