Satellite Internet at Sea: Hardware, Airtime, and Pricing 2024

Sailing the open sea can be the perfect place to get away from it all, but we all know how imperative it is to stay connected while doing so. We are a society that thrives off the ability to communicate to anyone, anywhere, and anytime. Though finding the right solution to get satellite internet for boats may be more challenging than securing it on land, the maritime options available are the best we have ever seen.

Satellite Internet for Boats

From small vessel to vast fleet, open sea adventures to large-scale shipping operations, connectivity is essential for day-to-day communication. This requires finding the right maritime satellite internet solution that integrates seamlessly with the needs you or your team require.

For the times that you are docked in the marina or within 5-10 miles offshore, you’ll be able to utilize a typical Wi-Fi connection or obtain a cell signal. But that won’t work when you get farther out to sea which is why satellite internet is a necessity. The other challenge when it comes to internet on a boat is finding a way to maintain the connection even when waves are constantly rocking the boat back and forth or weather becomes severe.

Maritime satellite internet with the proper device is what you will require.

Obtaining Satellite Internet for Your Boat

For those heading out on a short, offshore excursion seeking a way to obtain an internet connection for themselves, a device like the Iridium Go! fits the bill. This portable device turns your own smartphone or tablet into one that supports a range of satellite communication functionality. But it doesn’t account for the movement challenges that arise on a boat.

So for those spending days at sea who require a reliable and faster connection similar to what you’re used to back home, you’re going to need a more robust device designed specifically for the needs required of anyone operating at sea.

The capability of the maritime satellite internet terminals and the networks they operate on have come a long way. By choosing the right fit, you can ensure that you have all the capability you need whether that’s getting the kids on a video call with Grandma or closing an important business deal.

For the high-speed internet you can rely on (because who has time to wait), your choices come down to Global L-Band Broadband or Maritime VSAT. So what’s the difference?


There are extensive options available via global broadband satellite. Whether you choose a device that operates on the unmatched worldwide network of Iridium or the proven network of Inmarsat, you can be confident in staying connected no matter how long you’re on the ocean.

SAILOR 250 FleetBroadband
SAILOR 250 FleetBroadband
SAILOR 500 FleetBroadband
SAILOR 500 FleetBroadband
Thales VesseLINK Maritime (Certus)
Thales VesseLINK Maritime (Certus)
Intellian C700
Intellian C700
NetworkInmarsatInmarsatIridium CertusIridium Certus
Standard IPUp to 284 kbpsUp to 432 kbpsUp to 700 kbps (down)/352 kbps (up )Up to 704 kbps (down)/352 kbps (up)
Streaming IPUp to 128 kbpsUp to 256 kbps256 kbps256 kbps
Multiple Voice LinesUp to 6 concurrent callsUp to 9 concurrent calls3 dedicated voice channels26.5 pounds
Weight26.5 pounds35 pounds7.05 oz (200g)14.3 pounds
SizeHeight: 10.83in, Diameter: 12.96inHeight: 24.80in, Diameter: 23.81in12 in. x 9 in. x 3in.14.5 in. x 11 in.
SizeIPX6 sprayproof in all directionsIPX6 sprayproof in all directionsUp to IP67 water and dust protectionUp to IP56 water and dust protection
Operational Temperature-13 degrees to 131 degrees F-13 degrees to 131 degrees F-22 degrees to 131 degrees F-13 degrees to 131 degrees F
Sailor 250 FleetBroadband

Sailor 250 FleetBroadband

For an affordable, yet high-performing global internet and voice solution for your boat, the SAILOR 250 is a solid choice.

Features of the Sailor 250 include:

1) Operates on Inmarsat’s geostationary network

2) Simultaneous access to internet, e-mail, and multiple voice lines

3) Fast connectivity between vessel and shore

4) 24/7 uninterrupted connection to conduct business or pleasure

5) Simple and secure installation

6) Easily integrates for tracking and telemetry applications

Sailor 500 FleetBroadband

The SAILOR 500 offers a compact and lightweight solution with high-performing capabilities for those with increased connectivity demands.

Features of the Sailor 500 include:

1) Operates on Inmarsat’s geostationary network

2) Designed for boats and ships requiring intensive, high-level connectivity

3) Efficiency enhancing custom IP solutions

4) Broadband data up to 432kbps

5) Up to 9 multiple voice lines

6) Pre and post paid options for crew calling

Sailor 500 FleetBroadband
Thales VesseLINK Maritime (Certus)

Thales VesseLINK Maritime (Certus)

For a top-tier option at sea that allows for 100% pole-to-pole global coverage, the Thales VesseLINK delivers.

Features of the Thales VesseLINK Maritime include:

1) Commercial solution with a military-grade design

2) Suitable for ships or fleets of any size

3) Operates using the robust network of Iridium Certus broadband services

4) Simple and user-friendly, yet powerful

5) Built-in upgradeability for future proofing

Intellian C700

The Intellian C700 enables a variety of applications for those needing the most advanced features.

Features of the Intellian C700 include:

1) The most powerful Iridium Certus terminal available

2) Low-earth orbit means stronger signals

3) Can be used as the primary communication antenna or as a companion to a VSAT system

4) Utilizes a powerful 12 patch phased-array antenna for highest performance delivery

5) High power H2 antenna amplifier for fast speed

6) Continues excellent coverage even through motion on rough seas

Intellian C700

Marine-Specific L-Band Broadband: Fleet Broadband or Iridium Certus

With Global Broadband, you’re able to get fast and powerful internet services at sea as well as almost every other remote area of the world. Fleet Broadband is Inmarsat’s proven maritime satellite services whereas Iridium Certus – Maritime is Iridium’s superior option for communication at sea. Both utilize an L-band operating frequency which is less susceptible to “rain fade.”

Iridium Certus – Maritime

1) Almost worldwide coverage, except at the poles

2) Cost-effective voice and data through a compact antenna

3) Terminals operate well in severe weather

4) Provides voice and internet services in remote locations (even at sea)

5) Streaming capability, enhanced voice services, and SOS emergency calling

Iridium Certus – Maritime

1) 100% pole-to-pole global coverage

2) Delivering innovative solutions to support crew welfare while optimizing business operations and logistics

3) Reliably designed marine terminals with solid-state and virtually maintenance-free antennas

4) Top markets include merchant shipping, commercial fishing, leisure, workboats, and coastal government applications

5) Find multiple high-quality voice lines, high-speed IP data and safety services in one terminal

Maritime VSAT

Maritime VSAT refers to the use of satellite communication via a “very small aperture terminal” on a ship sailing at sea. For ideal functionality aboard a moving ship, the antenna is stabilized with reference to the horizon and True north to always maintain a clear line to the satellite.

More about Maritime VSAT:

1) Ku-band frequencies offering voice and data communication

2) high data transfer speeds

3) a maritime VSAT antenna typically has a circular antenna that is 2.4 meters or smaller in diameter that is usually concealed with a dome

4) utilizes an outdoor above deck unit (ADU) that includes the antenna and transceiver and a below deck unit (BDU) located inside that controls the unit

5) able to reach a level of bandwidth at broadband level speeds

6) VSAT frequency band include C-band, Ku-band, and Ka-band all with their own unique capabilities serving different needs

For a clear idea of how Maritime VSAT looks and operates, Cobham has a great infographic


Intellian V85NX
Intellian V85NX
Intellian V100NX
Intellian V100NX
Block Upconverter (BUC) Power6W standard; upgradeable to 20W20W extended frequency8W, 16W, 25W (optional)8W, 16W, 25W (optional)
Total System Power Consumption330 W peak, 140 W typical (up to 6 W BUC)370 W peak, 175 W typical (up to 8 W BUC)256 kbps256 kbps
Above Deck Unit Weight275 pounds279 – 287 pounds211 pounds249 pounds
Weight26.5 pounds35 pounds7.05 oz (200g)14.3 pounds
Reflector Size83 cm103 cm85 cm105 cm
Ingress Protection (water)IPx6 sprayproofIPx6 sprayproofNANA
Operational Temperature-13 degrees to 131 degrees F-13 degrees to 131 degrees FNANA
Sailor 800

Sailor 800

The SAILOR 800 VSAT Ku is a standardized high-performance 3-axis stabilized Ku-band antenna system. Even though it has a small form factor, it’s been tested and verified that it is equal or higher to other 1m maritime VSAT antenna performance.

Features of the SAILOR 800 include:

1) Small, but mighty

2) Comes standard with 6W BUC or opt for the 20W high-powered version

3) Expect high-quality, reliable communication for a range of vessels from workboats to large yachts

4) Low start up costs with easy installation and quick deployment

5) simple dual antenna configuration means your satellite connection is never interrupted

Sailor 900

For increased power, users can turn to the Sailor 900 VSAT High Power.

Features of the SAILOR 900 include:

1) Verified to provide reliable operation downlink and uplink even in high temperature regions

2) Meets the demand of more bandwidth and higher data throughput

3) 20W extended frequency BUC for top performance and reliability

4) reflector dish and radome primed for the best performance on both Ku- and Ka-band frequencies

5) operates two antenna systems to avoid any obstruction which could cause a service outage

6) switch over between satellite and satellite router in just 20 milliseconds

Sailor 900
Intellian V85NX

Intellian V85NX

Intellian has introduced to the world the first future proof ku-to-ka-band convertible Sub-1m VSAT. Specifically constructed for maritime operations, this smaller footprint antenna system is perfect to install on smaller vessels.

Features of the Intellian V85NX include:

1) Ideal for commercial ships in oil and gas or mission critical operations

2) Quick and easy back-and-forth between ku- and ka-band frequencies for optimal performance

3) Capable of supporting full 2.5GHz Wide Ka-band networks

4) Uniquely designed for reduced installation time and cost

5) Future-proofed system ready for whatever might come next

6) Highly efficient design outperforms other sub-1m class systems

7) Dual antenna system means you’ll never lose your signal

Intellian V100NX

Now meet the all new 1M Ku-Ka- Dual Band VSAT terminal. This revolutionary operation platform enables GEO, MEO, and LEO satellite tracking ensuring future proofing of the device’s antenna. Never worry about replacing your device in a swiftly moving technological world

Features of the Intellian V100NX include:

1) Quick and easy conversion between ku- and ka-band operations for maximum performance

2) Responsive web user interface

3) Completely convertible and upgradeable

4) Efficient and preventative maintenance with remote monitoring and user-friendly dashboard

5) Meets the unique demands of varying boat sizes and communication needs while at sea

6) High level of bandwidth and high speed

Visit Intellian Tech to learn more about the Intellian NX Series

Intellian V100NX

Global Broadband Vs. VSAT Satellite Internet

For reliable internet aboard your ship, you have two main options. This includes Global L-Band Broadband Service or VSAT (Very Small Aperature Terminal) Technology.

L-Band terminals allow for a satellite internet connection from virtually anywhere in the world. A VSAT is a two-way ground (or fixed) station that sends and receives data via satellite. The terminal is a dish antenna generally smaller than 3.8 meters in diameter.

Each has the ability to provide users with internet access no matter where they roam in the world, including the waterways around the globe.

To get an uninterrupted connection and alleviate the unique challenges at sea, you’ll want to use a marine-specific network. Your options are Marine Specific L-Band Broadband or Maritime VSAT.

Reviews From Customers

Unless you are in a marina where you can access a Wi-Fi hotspot or just slightly offshore still in close enough proximity to get a cell signal, you’ll need to seek a satellite option to get internet at sea. By utilizing a robust satellite network such as Iridium or Inmarsat, you’ll able to maintain an internet connection no matter where you sail. A satellite WiFi hotspot such as the Iridium GO! will give you basic functionality at slower speeds. Beyond that, there is a wide range of maritime satellite devices to meet the global communication needs for both individuals on small boats and those operating large fleets.
To set up internet on your boat, you’ll want to research various maritime satellite internet devices. Consider what you’ll the internet for to find a device that has the capability to meet the connection needs you require. Once you’ve chosen a device – you can find an excellent list here – you’ll need to get set up with the network that it operates on. Most high-quality marine systems (that can continue to function properly even on rough seas) will be fixed to your vessel. Once it has been installed and you’ve chosen a marine data plan, you’ll be set to sail!
Mobile satellite internet is more expensive than cellular service or high-speed internet on the ground. The infrastructure is large, complex, and costly to build and maintain. However, in order to get internet in remote areas of the world where obtaining a cell signal is impossible, it’s imperative that you have it to stay connected.You’ll need to first choose and pay for your device which, for maritime internet, ranges from around $800 up to over $50,000. You’ll then pay a monthly fee based upon the amount of megabytes of data you use, which ranges from a couple hundred dollars to thousands of dollars.You can find more Satmodo’s maritime service plans at the following links: Inmarsat FleetBroadband and Certus Marine Service.
For the fastest satellite internet at sea, you’ll want to choose a high-powered maritime device on either the Iridium or Inmarsat network. Not only do these networks give you almost complete coverage wherever you sail, but they also deliver when it comes to fast, reliable internet. Choosing a proper device on these networks is important, too. With the Thales VesseLINK and the Intellian C700, both operating on Iridium Certus, you’ll get download speeds over 700 kbps and upload speeds of 352 kbps. For VSAT technology, consider a device operable at 20W BUC, such as the Sailor 900 for reliable, high performance operation no matter the conditions. A device such as the Intellian V100NX, with its ability to easily convert between ku- and ka-band frequencies will deliver maximum speeds without interruption.
For those that traveling via oceans is a way of life, you need a satellite network can meet the high-speed internet demands you require wherever you end up. Iridium Certus Maritime allows you 100% global coverage – necessary for anyone who may be sailing near the polar regions. Inmarsat, considered the pioneer in mobile satellite communications, offers reliable satellite internet covering 80% of the globe.
Satellite internet can provide high-speed internet connectivity, but the actual speed may vary depending on factors such as network congestion and the specific satellite service provider.
The cost of an internet satellite can vary significantly depending on factors such as the satellite technology, capacity, and the specific provider. Prices can range from a few hundred dollars for consumer-grade equipment to millions of dollars for commercial-grade satellites.
Yes, satellite internet is still available and widely used in many areas, especially in rural and remote locations where traditional wired internet options may be limited or unavailable.
Whether satellite internet is worth it depends on individual needs and circumstances. It can be a viable option for people in areas with limited connectivity, but it may have higher latency and data usage restrictions compared to other types of internet connections.
When it comes to streaming, satellite internet providers such as HughesNet, Viasat (formerly Exede), and Starlink offer plans specifically designed for streaming content, with varying speeds and data allowances. It's best to research and compare the available options in your area to find the most suitable one for your streaming needs.
Yes, satellite internet can be available in various parts of the world. However, the coverage and availability may vary depending on the satellite service provider and the region. Some providers offer global coverage, while others focus on specific areas.
For gaming, satellite internet may not be the optimal choice due to its higher latency compared to other types of connections. However, if satellite internet is the only option available in your area, providers like Starlink and Viasat offer plans with lower latency and higher speeds, which can be more suitable for gaming compared to traditional satellite internet options.

Satmodo LLC is offering this information to be helpful and informative. This is not being offered as legal advice in any way. We highly encourage you to do your own research and contact the embassy or consulate for the country that you will be traveling too.


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