Hi!

I'm Jabberrock, and I have been using Full Body Tracking (FBT) for the last three years!

SlimeVR

I started by building my own DIY Slime trackers, and then for friends. I contributed to the SlimeVR firmware and server, eventually releasing "Stay Aligned", which reduces drift for Slime trackers using obsolete IMUs. I also helped at the SlimeVR booth at Open Sauce 2025.

During this time, I have heard a lot of comparisons between SlimeVR and VIVE trackers. There is a lot of misinformation and out-of-date "facts" floating around.

Comparison

I built this comparison website for *me* to understand all the systems. I needed to be confident about my recommendations, when friends asked about FBT. I wanted to have recordings that could support or reject things that they heard.

I tried my best to be impartial, and to provide the raw recordings to support my opinions. Hopefully, it will help you decide on which FBT system is right for you!

My recommendation is:
  1. If you have a Quest headset, choose SlimeVR.
  2. If you have a Lighthouse-based VR headset, choose SlimeVR or VIVE Tracker 3.0.
  3. Never choose VIVE Ultimate trackers.


Disclaimers

I use Amazon affiliate links to support this site.

SlimeVR generously provided or funded the trackers (SlimeVR, VIVE Tracker 3.0, VIVE Ultimate) used in this project. But all opinions here are mine and were not reviewed by SlimeVR.