I Want My Avatar to Emote While Wearing the Headset — What Do I Actually Buy for Face Tracking?

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I wrote earlier about body tracking in VR — full-body tracking. One question stayed with me afterwards: fine, the body moves, but what about the face?

When an avatar’s expression moves, the impression of a conversation apparently changes a great deal. The mouth moves; the eyes meet yours. That alone is often described as enough to make it feel like somebody is actually there. This is face tracking.

But I stalled almost immediately when I started looking. The options differ in price by more than ten times — from around ¥13,000 to nearly ¥160,000. And there turned out to be three fundamentally different mechanisms.

So what should you actually buy? Let me sort it from cheapest upward.

Researched as of July 2026. I do not own any of this hardware — please read this as an organized summary of published information. Prices and availability change, so check the retail pages before buying.

The road forks here, before budget
Playing with a headset on

This article. A small camera mounted on the headset watches your mouth and eyes from close range. From a ¥3,000 DIY build to a ¥160,000 all-in-one.

Playing without a headset (desktop)

A separate article. Filming your face from outside with an iPhone or a webcam you already own. You can start for free. But it stops working once a headset covers your face.

If you do not own a headset, or you play on the desktop, the second option is for you — no dedicated hardware required.

Prices in this article are Japanese retail prices as of July 2026, shown in yen. As a rough guide, ¥1,000 is about $6.70.

Why is this so hard to choose?

The reason was simple. There are three different ways to read a face. They all get called “face tracking", but what you buy, what it costs and how much work it takes are all different.

RouteWhat it means
1. Built into the headsetBuy a headset with the cameras already in it. Least work, but you are replacing the whole headset
2. Add it onAdd a camera to the headset you already have. Keeps your headset — but check compatibility carefully
3. Build it yourselfBuy the parts and assemble. The software is free. Cheapest, and by far the most work

Routes 2 and 3 share one thing: the captured video is processed on your PC to infer the expression. More on that below.

1. Built into the headset

Meta Quest Pro: excellent, but no longer made

It reads both eyes and mouth. The price was ¥159,500, but production has ended. You would be looking for a used one.

That is a lot to spend purely to move your face, and getting one new is now difficult. As a fresh choice today, it is not realistic.

VIVE Focus Vision: eyes included, mouth sold separately

Eye tracking is in the headset. But the mouth needs a separate device (¥14,900). If you want both, add that to the headset price.

VIVE Facial TrackerCheck price on Amazon ›

2. Adding it to the headset you own

This is where I felt the most movement right now — keep your headset and add a camera to it. On models like the Quest 3, where the face cushion comes off, a small camera mounts in its place.

PaperTracker: in the ¥13,000 range

A Chinese infrared camera part that attaches to the Quest 3’s face cushion area. Reported at 600–700 CNY (roughly ¥13,000–15,000).

It is cheap because the software is free — Project Babble and EyeTrackVR, both open and published. Selling only the hardware keeps the price down.

Buying it mostly means going outside domestic retailers, and a dedicated storefront is said to still be in preparation. Treat delivery times and what happens if it breaks as different from buying locally.

FocusRay: aimed at the domestic market, but not out yet

As an add-on, FocusRay Extension is listed at ¥17,700 (incl. tax), released 17 October 2026, with the FocusRay Plus bundle at ¥27,500 (incl. tax).

It has not shipped yet. If you are not in a hurry, waiting for this before deciding is a reasonable move.

The single most important check for add-ons
Confirm it fits your headset. Add-on devices are built to the shape of a specific model. “Supports face tracking" does not mean it attaches to what you own.
Meta Quest 3 128GBCheck price on Amazon ›
Meta Quest 3S 128GBCheck price on Amazon ›

3. Building it yourself — which turned out to be a local AI story

This was the most interesting part of the research.

A DIY build means wiring an infrared camera and infrared LEDs onto a 3D-printed mount. Parts start at around ¥3,000, and the software is free.

The software is Project Babble (mouth) and EyeTrackVR (eyes). Both are open and free, and almost every add-on product is built on top of them.

And here is the point. These programs take the camera’s video and infer, on your PC, what expression you are making right now. That is machine-learning inference, running on your own machine.

DIY face tracking is local AI, exactly
This blog is about running AI on your own machine. Building face tracking yourself means running an AI that reads expressions from camera video, continuously, on your own PC. Nothing goes to the cloud; it all completes locally.

It struck me as one of the clearest answers to “what is the point of running AI locally?" — this is a use case where latency rules out sending anything away in the first place.

The work is real, though: wiring, printing the mount, aligning it, tuning the software. This route suits people who enjoy the building itself.

If you print the mount yourself you need a 3D printer.

ELEGOO Mars 5 Ultra resin 3D printerCheck price on Amazon ›
Infrared camera module (NIR / IR)Check price on Amazon ›
Infrared LED 850nmCheck price on Amazon ›

Sorted by budget

The whole thing in price order. Headset cost not included.

BudgetOptionWork involvedAvailability
From ¥3,000DIY (Project Babble / EyeTrackVR)A lotBuildable any time
¥13,000–15,000PaperTrackerLittleImported from overseas
¥14,900VIVE Facial Tracker (mouth only)LittleLimited compatibility
From ¥17,700FocusRay ExtensionLittleReleases October 2026
¥159,500Meta Quest Pro (whole headset)LeastDiscontinued

Laid out like that, the striking thing is that the most expensive option is currently the hardest to buy. The polished Quest Pro is discontinued, and the domestic add-on has not shipped. What you can definitely get today is a DIY build, or an import.

Check these before buying

  • Does it fit your headset? Add-ons are built to a specific shape
  • Eyes or mouth? Not everything does both — the VIVE device is mouth only
  • Do you need a PC? Add-ons and DIY builds run the processing on a PC. The headset alone does not complete it
  • When can you get it? Some options are discontinued and others have not launched
  • Does your avatar support it? Moving expressions requires the avatar to be built for it

Wrap-up: if you are not in a hurry, waiting until autumn is an option

  • Three ways to read a face — built in, added on, or DIY — differing in price by more than ten times
  • The polished Meta Quest Pro is discontinued. Not a realistic new purchase now
  • The domestic add-on (FocusRay) ships October 2026. Worth waiting for if you can
  • Available right now: DIY (from ¥3,000) or an imported PaperTracker (from ¥13,000)
  • Both add-ons and DIY builds infer expressions on your PC — machine learning running continuously on your own machine

Before researching this I assumed moving your face required expensive equipment. What surprised me is that the cheapest route lands exactly on what this blog is always about: running AI on your own hardware.

For anyone who likes building things, the DIY route looks like a genuinely interesting project. If I get the chance, I would like to actually build one and write it up.

Hardware mentioned

Meta Quest 3 128GBCheck price on Amazon ›
Replacement silicone face cover for Quest 3Check price on Amazon ›

Sources

Checked 31 July 2026. Prices, release status and how to obtain these change. Please check the retail pages before buying.