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VYRO VR Docs

Arm Tracker Upgrade Kit

The Arm Tracker Upgrade Kit adds two trackers and two arm straps for upper-arm tracking. Adding it to an Advanced (8) set gives you exactly the coverage of a Full Body (10) set. Adding it to a Core (6) set gives you arms but still no feet — add the Foot Tracker Upgrade Kit for those.

What’s in the kit

  • 2 × IBIS 2.0 trackers
  • 2 × VYRO VR comfort arm straps (the default variant), or 2 × 30 cm basic straps with trays and hooks if you chose the Basic Arm Strap variant
  • Optionally a Styria receiver, if you picked the “include receiver” variant

If you already have an IBIS receiver, buy the no-receiver variant. If you’re adding IBIS arm trackers to a set of official SlimeVR Wi-Fi trackers, you need the variant with the receiver.

Pair the new trackers

Kits ordered with a receiver come pre-paired to that receiver. Kits ordered without a receiver need to be paired to your existing one, and the trackers must be on the same firmware version as that receiver — see Pairing and Updating Firmware.

Where they go

Upper arms, as close to the elbow as possible. The flat face of the tracker should point up toward the ceiling when you T-pose (arms held straight out to the sides). Tighten until snug — arm trackers are particularly prone to shifting if loose, so this strap can be a touch firmer than your leg straps.

For the recommended orientation, see Wearing Trackers.

Why add arm trackers?

Arms are the second biggest tracking improvement after lower-body (lower body alone covers feet, knees, and hips). Arm trackers add elbow position, which makes:

  • Stretching, dancing, and air-drumming feel natural
  • VRChat emotes that use elbow position work properly
  • Avatar gestures look like your real movements

When to skip them

If you’re only doing standing rhythm games or seated experiences, arm trackers add little. Save your money for foot trackers or a comfort strap upgrade instead.