>>402627354
Tundra Good: Very smol, light ( 50g ), is not shaped like a hook, longer battery life, 
Tundra bad: Many trackers are bad, slow support ( literally months ), only the 3x dongle stable

Vive good: They just work.
Vive bad: Slightly shorter battery life, larger, shaped like a hook, heavier ( 75g )

The Strap Loop baseplates available for the Tundras are great, but I believe the new bundles only come with the 1/4" baseplates, and the Strap loop baseplates are a separate purchase now.