Quick Answer
ArtLynk is BetaFPV's budget digital FPV protocol built on the Artosyn chipset. The VR04 HD goggles at roughly £140 and the P1 Air Unit VTX at around £35 together cost less than a single DJI O4 Air Unit. You get 1080p digital video at a fraction of DJI pricing, but with higher latency: Oscar Liang measured 67ms glass-to-glass, roughly double DJI O4. For cruising, whoops, and learning, it is brilliant. For racing and bando, skip it.
What ArtLynk Actually Is
Until ArtLynk arrived, budget FPV meant analogue. You either paid DJI money for HD or accepted static and that grey smear where branches should be. ArtLynk runs on the Artosyn chipset, the same silicon behind HGLRC's Draco system, and the two are cross-compatible with recent firmware. You are not locked to one brand for VTX options.
We stock the VR04 HD because the price-to-performance ratio fills a gap nothing else does. A complete ArtLynk setup comes in at roughly half what DJI Goggles 3 and an O4 Air Unit would cost. The image quality sits comfortably above analogue. You can pick out fence wires at distance that would be invisible on a 5.8GHz analogue feed. It is not DJI O4 quality, but pilots getting into HD for the first time will not feel shortchanged.
The 67ms Question: Is the Latency Flyable?
Oscar Liang measured ArtLynk at 67ms glass-to-glass. For context: analogue is around 17ms, DJI O4 at 100fps is 33ms. ArtLynk is noticeably slower than every established system.
In practice, this works for cruising, whoop flying, fixed-wing, and learning. We have customers flying the P1 Air Unit on 75mm whoops indoors and having a genuinely good time. But if you fly tight bando gaps or race gates, the latency will frustrate you. We tell customers straight: ArtLynk is not a racing system. For cruising and backyard whooping, most pilots adapt within a few sessions.
VR04 HD Goggles: Specs That Matter
The VR04 HD uses a single 4.5-inch 1080p LCD. The faceplate is genuinely spacious: Oscar Liang confirmed he could wear glasses inside them, which is rare under £150. The goggles weigh about 400g and feature one-button 1080p at 60fps DVR recording to a microSD slot. Power comes from either a 2600mAh internal battery giving roughly 3 hours, or external 2-6S packs via the 18650 holder on the rear headband.
One thing we flag to every customer: the P1 Air Unit has no onboard recording. All footage comes from the goggles' DVR, so quality depends on signal strength. When the link degrades, your recording degrades with it. Betaflight OSD is not burned into the DVR, but an SRT subtitle file with telemetry is saved alongside each clip. The system estimates distance using signal propagation delay rather than GPS, which is clever but approximate.
The P1 Air Unit: 7.1g of Digital HD
The P1 Air Unit VTX, camera, and antenna combined weigh 7.1g. That is lighter than most analogue micro cameras and light enough for 75mm whoops where every gram matters. Output power ranges from 25mW to 200mW, and Oscar Liang achieved over 500m range at full power. It connects via a 6-pin cable with the same pinout as DJI Air Units, so most FCs with a DJI connector work without adapters.
One known issue: the VTX can overheat if it sits powered on without airflow after a crash. The video feed may not reconnect even when you walk back into range. Power-cycling the drone fixes it.
Who Should Buy ArtLynk (And Who Should Not)
Buy it if: You want HD without DJI money, you fly whoops or micro builds, you cruise rather than race, or you wear glasses and need a roomy faceplate.
Skip it if: You fly competitive racing or bando gaps. You already own DJI Goggles 3 or N3. You need onboard VTX recording for cinematic footage.
For pilots deciding between ArtLynk and DJI O4, the goggles compatibility trap is the mistake we see every week: assuming one goggle works with everything. ArtLynk is its own ecosystem. The VR04 HD will not talk to your DJI Air Unit. Our analogue vs digital comparison breaks down where ArtLynk fits alongside every other system.
FAQ
Q: Are the VR04 HD goggles compatible with DJI or Walksnail?
A: No. The VR04 HD works only with the P1 Air Unit on the ArtLynk protocol. The older analogue VR04 is a separate product for 5.8GHz analogue.
Q: Can I use the P1 Air Unit with any flight controller?
A: Yes, if your FC has a standard DJI Air Unit 6-pin connector. The pinout matches. Most modern FCs designed for DJI systems work without modification.
Q: Is ArtLynk the same as HGLRC Draco?
A: Both are Artosyn-based and should be cross-compatible with recent firmware. You can fly a Draco VTX with VR04 HD goggles and vice versa. Caddx Ascent uses a different implementation and is not compatible.