Global Positioning Systems (GPS)
Bushnell Unisex ION Elite GPS Watch - Black - One Size
2 year warranty Up to 6 hazards per hole Dynamic Green mapping Greenview with moveable pin position, hole view with shot planning Slope compensated distances
https://www.bizrate.co.uk/globalpositioningsystemsgps/bushnell-unisex-ion-elite-gps-oid34944872808.html
