Two technologies, two philosophies

If you have been navigating with a VSAT system aboard for years, you likely remember the moment you contracted it: it promised offshore connectivity, global coverage, reasonable speeds. And for years it was the only serious option for yacht owners who wanted to remain connected beyond the reach of coastal mobile networks.

Starlink Maritime has changed that landscape irrevocably. Not because VSAT has ceased to function, but because the gap between what each technology offers has shifted from a difference of degree to a difference of category.

This comparison is written for owners who know the sea and understand that a connectivity decision is also a decision about how to live and work aboard.

The fundamental difference: distance to the satellite

Everything begins here. Conventional VSAT systems communicate with geostationary satellites at 35,786 km altitude. Starlink operates a constellation of low Earth orbit satellites between 340 and 1,200 km.

That difference in altitude has unavoidable physical consequences:

  • The signal takes longer to travel and return from a geostationary satellite. This is called latency, and in traditional VSAT it runs at 600-800 ms. In Starlink, latency is 20-60 ms — comparable to a fibre connection ashore.
  • High latency makes certain applications virtually unusable: video calls with noticeable lag, online gaming, VoIP with echoes. With Starlink, these limitations disappear.

Detailed technical comparison

ParameterTraditional VSATStarlink Maritime
Satellite altitude35,786 km (GEO)340-1,200 km (LEO)
Typical latency600-800 ms20-60 ms
Download speed5-30 Mbps50-250 Mbps
Upload speed1-5 Mbps10-20 Mbps
Ocean coverageNear-globalGlobal (polar zones expanding)
Performance in heavy rainModerate (Ka-band: sensitive)Moderate (similar)
Onboard equipmentLarge dome antenna (60-90 cm)Compact flat antenna (59.5 × 38 cm)
Aesthetic impactHigh — visible, bulky domesLow — flat profile, integratable

Cost comparison

This is where the difference becomes most evident for most owners.

VSAT systems:

  • Large, high-cost hardware
  • Complex and expensive installation
  • High monthly fees with 12-24 month minimum contracts

Starlink Maritime:

  • Compact hardware at a significantly lower price than VSAT
  • Simpler and more cost-effective installation
  • More affordable monthly service, with no mandatory minimum commitment

For current pricing tailored to your vessel, request a private consultation.

For a 30-metre yacht with moderate-to-intensive use, the total three-year cost can be up to four times lower with Starlink than with a premium VSAT system — with superior performance.

When VSAT remains relevant

It would be dishonest to say Starlink is the perfect answer for everyone. There are scenarios where VSAT retains advantages.

Superyachts with very high bandwidth requirements: High-capacity VSAT (HTS) commercial plans can offer guaranteed bandwidth for vessels with dozens of simultaneous users and multiple high-demand integrated systems. For these cases, a hybrid solution is sometimes chosen.

Specific coverage zones: Some VSAT operators have strong regional agreements in certain Pacific or Indian Ocean areas where the Starlink constellation is still expanding.

Corporate or security requirements: Some commercial fleets or corporate-managed superyachts require formal contractual SLAs that VSAT can provide in a more structured manner.

For 95% of recreational yacht owners, ocean sailing vessels and privately-used superyachts, however, Starlink Maritime offers a price-to-performance ratio that VSAT cannot match in 2025.

Verdict by vessel type

Motor yacht (20-40m) — Recreational and remote work use → Starlink Maritime, Mobile or Mobile Priority plan. No discussion.

Ocean sailing vessel — Long passages → Starlink Maritime, Global plan. Offshore coverage is impeccable and the compact hardware does not compromise the rig.

Superyacht (40m+) — Intensive use → Starlink Maritime Priority as primary service, with optional VSAT backup depending on operations.

Charter fleet → Starlink Maritime per vessel. The per-boat cost is reasonable and connectivity becomes a differentiator for clients.

Frequently asked questions

Can I keep my VSAT and add Starlink as backup?
Yes, this is a configuration some superyacht owners adopt. Starlink as primary service (better speed and latency) and VSAT as backup or for specific traffic. Our certified technicians have experience configuring these hybrid installations.
Do I need to remove my VSAT antenna to install Starlink?
Not necessarily. Both installations can coexist. However, many owners choose to remove the VSAT dome once they verify that Starlink meets their requirements, as it frees deck space and reduces topside weight.
What if my VSAT contract is still active?
We recommend verifying the terms of your current VSAT contract before cancelling. In some cases it makes sense to wait until the contract period ends; in others, the monthly saving justifies the early termination cost. We help you assess this during the consultation.
Does Starlink perform better than VSAT in adverse weather?
On Ka-band (used by some VSAT systems and Starlink), heavy rain can affect the signal. In general terms, Starlink's LEO architecture makes it somewhat more resilient because the signal travels a much shorter distance, but both technologies can be affected by extreme weather. In practice, most owners report superior availability with Starlink.