Number of participants representing each sport at various levels
STATSports, APEX
Shop, SPT GPS Vest
STATSports Apex Athlete Series GPS Performance Tracker
Playermaker Soccer Trackers vs. GPS Vests: Making the Right Choice
Catapult Combines Indoor/Outdoor Tracking, Heart-Rate Monitoring
The 5 Best Soccer GPS Trackers (2023 Edition)
Applying GPS Technologies to Team Sports (Part 1) by Vanessa Batchelor
Scientific study reliability of GPS and LPS
McLloyd, High Accuracy GPS Tracking