The difference is size — and what that size is best at:

Coil cover for the 5" x 8" coil

Minelab GPZ 7000 Li-Ion battery

15 kHz detection frequency - Optimized for small gold

Inclement Weather Hunting

Minelab EQX 15 Coil - 15x12 Waterproof for Equinox & X-Terra Minelab parts The difference is size —The Minelab EQX 15 smart coil delivers maximum depth performance and wide ground coverage for serious detectorists hunting large open areas. This 15x12 inch elliptical coil excels at finding deep targets that smaller coils miss. Key Features Superior depth detection 15x12" elliptical Double D configuration reaches deeper targets Wide area coverage Perfect for open fields, beaches, and large hunting sites Fully waterproof design Hunt in streams,