Gulfstream G500 for sale / Range: 5,300 nm at Mach 0.85 / Passengers: Up to 19.
The G500 is one of the closest alternatives. It has a modern flight deck, a high maximum speed of Mach 0.925 and a large cabin.
The Global 5500 has a longer published range and a slightly wider cabin. The G500 has the higher maximum speed.
For buyers comparing these two, the real question is simple: which cabin and mission fit you better?
Dassault Falcon 6X for sale / Range: 5,500 nm with eight passengers and NBAA IFR reserves / Passengers: 12 to 16.
The Falcon 6X is newer and has a very large cabin. It is 2.58 m wide and 1.98 m high.
That gives the Falcon a clear cabin advantage over the Global 5500.
The Global 5500 has a slightly longer published range. The Falcon 6X reaches Mach 0.90.
If cabin size is your first priority, the Falcon 6X deserves a close look.
Gulfstream G600 for sale / Range: 6,600 nm at Mach 0.85 / Passengers: Up to 19.
The G600 is the larger option.
It goes about 700 nm farther than the Global 5500 on published figures. Its cabin is also larger.
But you are moving into a bigger aircraft. If 5,900 nm covers your normal trips, you may not need the extra size and range.
Embraer Praetor 600 for sale / Range: 4,018 nm with four passengers under Embraer's published assumptions / Passengers: Up to 12.
The Praetor 600E is much smaller than the Global 5500.
That is exactly why it is worth comparing. If most of your flights are below 4,000 nm, you may not need a Global 5500.
The Praetor also uses Collins Pro Line Fusion avionics. It gives buyers a modern flight deck in a smaller aircraft.
Bombardier Challenger 650 for sale / Range: 4,000 nm with six passengers and two crew under Bombardier's published assumptions / Passengers: Up to 12.
The Challenger 650 is smaller and has less range.
For regular ocean crossings, the Global 5500 has a clear range advantage. For shorter trips, the Challenger can be a more practical choice.