Garden Groom Max Garden Groom Midi New Garden Groom Pro Weight 4.1kg 2.7Kg (5.9lbs) 3.5Kg (7.7lbs) Motor 430W 300W 500W Max Cutting Diameter 15mm(0.6") 10mm (0.4”) 20mm (0.8”) On board container capacity 6sqm (64 sq ft) 5sqm (54 sq ft) 6sqm (64 sq ft) Volume Bag Capacity 60sqm (645 sq ft) 50sqm (538 sq ft) 60sqm (645 sq ft) Cutting Head Diameter 30.5cm (12”) 23cm (9”) 29cm (11.4”) Our recommendation to people trying to choose between the 3 products is, the Midi is for medium to small hedges and ideal for shaping. The Pro is better for larger hedges with thicker branch diameter.