VR system requires at least two 3D tracking sensors - one for the head, one for the wand. Optionally more for other tools or body parts.
A common tracker for low-cost systems is the Ascension Spacepad.
Software support must be taken into consideration.
A separate PC may be used for tracking in some cases.
Some tracking systems and prices:
| Ascension Spacepad | electromagnetic | ISA | $1160 | 1 sensor; $300 per added sensor |
| Ascension pcBird | electromagnetic | ISA | $2475 | 1 sensor; ISA |
| Ascension pciBird | electromagnetic | PCI | $3350 | 2 sensors |
| Ascension Flock of Birds | electromagnetic | serial | $4940 | 2 sensors, short range transmitter |
| Origin Instruments DynaSight | optical | serial | $2200 | 1 sensor, position data only, wireless |
| Origin Instruments DynaSight | optical | serial | $2600 | with Active Target Adapter |
| Logitech (from vrdepot or i-glassesstore.com) | ultrasonic | serial | $2000 | 1 sensor |