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Join us on a revolutionary journey as we get ready to launch GX5. Global Xpress transformation has begun.

GX5 Video



Inmarsat's fifth Global Xpress satellite, GX5, will be launched by Arianespace from the Guiana Space Centre, Europe's spaceport in Kourou, French Guiana.

The Very High Throughput Satellite (V-HTS) will be carried into geostationary transfer orbit by an Ariane 5 heavy-lift launcher before being manoeuvred into position 35,786km (22,236 miles) above Earth.


GX5 will significantly boost Inmarsat's Global Xpress network capacity, meeting growing demand for reliable mobile broadband connectivity across Europe and the Middle East.

Based on Thales Alenia Space's upgraded Spacebus 4000 B2 platform, GX5 will deliver more capacity than the entire existing GX fleet (GX1-GX4) combined.


launch mass


16 years

mission lifespan


launch mass


16 years

mission lifespan

The GX5
Solar array wingspan – 33 metres
3 panels of triple-junction gallium arsenide solar cells
72 Ka-band fixed spot beams antennas for Receive and Transmit
Body – approximately 5 metres
16 chemical 10N station-keeping thrusters (scattered around satellite body)
4 steerable beams

Global Xpress

Global Xpress (GX) is the world's first and only globally available mobile broadband network.

GX has been serving organisations and governments worldwide since 2015, and today it is the gold standard for mobile satellite communications. Operating in the Ka-band, Global Xpress also integrates seamlessly with our L-band network to deliver powerful and reliable connectivity anytime, anywhere.


Number of major industry awards won by Global Xpress


Fleet Xpress vessel installations driving maritime digitalisation


Business jets connected in the sky with Jet ConneX


GX Aviation service contracts with leading airlines

GX Transformation

GX5 marks the first step in a journey that will see the capabilities, capacity and agility of Global Xpress totally transformed – both for new and existing customers – with a further seven launches scheduled over the next four years:


The GX satellite service dates are given as a guide only and are subject to change.

  • Advanced Ka-band payloads will be hosted on our next generation Inmarsat-6 (I-6) L-band satellites, GX6A & 6B, for the coming 5G era.
  • GX7, 8 & 9 will transform the way we design, deliver and operate our infrastructure, from satellites and ground stations, to terminals and network management.
  • Two satellite payloads, GX10A & 10B, will be placed into Highly Elliptical Orbits (HEO), ensuring continuous coverage above 65° North and enhanced Arctic capabilities.


News Item

24 October 2019

GX5 satellite on way to launch site

News Item

03 July 2019

Global Xpress to be enhanced with Arctic capabilities

News Item

30 May 2019

Inmarsat and Airbus partner on Global Xpress transformation

Contact Us

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