The biggest Swiss Army knife is the Swiss Army Ranger Grip Handyman but only because it is physically longer than the other pocket knives. The Ranger Grip Handyman is 130 mm long while the Work Champ XL is only 111 mm long. The Work Champ XL has more tools than the Handyman but is slightly smaller in size.
Swiss Army Ranger Grip Handyman
Swiss Army Work Champ XL