Gulfstream G650er vs Gulfstream G800

In category terms, both the Gulfstream G650ER and Gulfstream G800 are ultra-long-range, large-cabin business jets, but the G800 is the newer-generation flagship design, intended to deliver higher overall efficiency and updated systems relative to the G650ER’s proven earlier platform. On range, the G650ER is rated for about 7,500 nautical miles, while the G800 extends that to roughly 8,000 nautical miles, giving it more nonstop city-pair capability and greater planning flexibility on very long missions. For passenger capacity, the two are broadly comparable: the G650ER is typically configured for around 14 to 18 passengers (with maximum seating higher depending on layout), and the G800 is likewise commonly planned around 15 to 19 passengers, again varying by interior. In practice, both can be outfitted for similar comfort levels, but the G800’s extra range tends to be the clearest differentiator when comparing mission profiles.