Starlink vs Traditional Satellite Internet: What's Actually Different

Satellite internet has a reputation problem, and it earned it honestly. For twenty years, satellite broadband meant high latency, restrictive data caps, and a connection that fell over in rain. Anyone who lived with it remembers.

Starlink is not that system made better. It is a structurally different approach, and comparing the two is mostly a comparison of two orbits.

The geostationary approach

Traditional providers — HughesNet, Viasat, and the regional operators built on the same model — use geostationary satellites. One satellite at 35,786 km above the equator covers roughly a third of the planet, so three of them can serve almost the entire inhabited world. That is remarkable coverage efficiency, and for broadcast television it is close to ideal.

Because the satellite appears fixed in the sky, ground equipment can be simple and cheap: a parabolic dish aimed once at installation and never moved. There is no tracking, no handover, no constellation to manage. The whole system is one satellite, a few gateway stations, and a lot of dishes pointed at the same spot.

The low-Earth-orbit approach

Starlink puts thousands of satellites at about 550 km instead. Each one covers a small area and moves fast, so coverage has to be built out of overlapping paths and continuous handovers rather than one stationary spot in the sky.

This is far harder to operate. You need thousands of satellites instead of three, a dish that can track a moving target, software that hands connections between satellites every few minutes, and a replacement pipeline because low-orbit satellites have short lives. SpaceX can absorb that complexity because it also owns the rockets — launching your own hardware at cost is the structural advantage that makes the whole model viable.

Latency: the difference people actually feel

Signal round trip to geostationary orbit and back, twice, is roughly 480 ms of pure flight time before any processing. Real-world geostationary internet typically measures 600 ms or more. Starlink's flight time is a few milliseconds, and real-world latency usually lands between 25 and 60 ms.

The practical threshold is around 150 ms. Below it, conversation feels natural and interactive applications behave. Above it, everything acquires a lag you cannot ignore. Geostationary sits firmly on the wrong side of that line and no amount of engineering moves it; Starlink sits comfortably on the right side.

• Geostationary: roughly 600+ ms typical round trip
• Starlink: roughly 25–60 ms typical round trip
• Terrestrial fibre: roughly 5–20 ms typical round trip
• Rule of thumb: under 150 ms feels interactive, over 300 ms does not

Speed and capacity

Raw download speed is less of a gap than latency. Modern geostationary services can deliver respectable headline speeds, and Starlink typically lands in the 100–200 Mbps range for residential users, with wide variation.

The difference is in how capacity behaves under load. A geostationary satellite serves an entire continent-sized footprint, so every subscriber in that footprint shares the same hardware. Starlink's footprints are small and constantly changing, so load spreads across many satellites — but it still spreads unevenly, and a densely subscribed region will see lower speeds at peak hours than a sparsely subscribed one.

This is why Starlink's performance in a given place depends heavily on how many other subscribers are nearby. It is a shared medium, and the sharing is geographic.

Weather

Both systems lose signal to heavy precipitation — this is rain fade, and it is a property of the radio frequencies involved rather than the orbit. Water absorbs energy at Ku and Ka band, so a thunderstorm overhead attenuates the link.

Starlink has a modest structural advantage: the path through the atmosphere is shorter and the satellite is usually high in your sky rather than low near the horizon, so there is less weather between you and it. Wet snow accumulating on the dish is a bigger practical problem than rain, which is why the dish includes a heater.

Where the old model still wins

Geostationary is not obsolete, and it would be wrong to pretend otherwise. For one-way broadcast — television distribution, content delivery to many sites at once — a stationary satellite covering a third of the planet is extremely efficient and always will be.

It also has no constellation to maintain. A geostationary satellite is designed for fifteen years or more of service; a Starlink satellite is designed for about five, which means SpaceX has to keep launching replacements indefinitely just to stand still. That is a permanent operating cost the geostationary model does not carry.

And for a fixed installation that needs a link which never has to hand over, never has to track, and can tolerate latency — some industrial telemetry, some backhaul — the simplicity is worth something.

The short version

If your alternative is fibre or good cable, take the terrestrial option: cheaper, faster, more consistent. If your alternative is geostationary satellite or nothing at all, Starlink is a categorically different experience — the first satellite internet where the latency does not dictate what you are allowed to do with the connection.