GMC Sierra 1500 (2019) is 281 mm (11.06 inch) longer, 36 mm (1.42 inch) wider, 94 mm (3.70 inch) higher and has 403 liters (14.23 ft3) bigger cargo space than Honda Pilot (2018).
Honda Pilot (2018) is 151 kg (333 lbs) lighter than GMC Sierra 1500 (2019).