Why latency matters more than download speed

If you ask most satellite internet providers about their service, they'll talk about download speed. They won't lead with latency — and that's intentional.

Download speed measures how fast data moves from the internet to your device. Latency measures how long it takes for a signal to make a round trip — from your device, up to a satellite, back to a ground station, to a server, and all the way back again.

For most things people do online — video calls, gaming, remote desktop, VoIP phone calls — latency matters as much or more than raw speed. A 100 Mbps connection with 600ms latency will produce worse video call quality than a 25 Mbps connection with 40ms latency.

Rule of thumb: If you only stream video and browse the web, download speed is what matters. If you make video calls, play games, or use VPN for work, latency is the number that determines whether satellite internet will work for you.

This is why the distinction between old-generation GEO satellite providers (HughesNet, Viasat) and newer LEO providers (Starlink) matters so much. It's not a marketing distinction — it's physics.

GEO vs. LEO satellites: the physics that determines your experience

Geostationary (GEO) satellites orbit at 22,236 miles above Earth — far enough to stay in a fixed position relative to a point on the ground. This is why your HughesNet or Viasat dish points at a fixed spot in the sky and never needs to track anything.

The downside: at that distance, a signal must travel 44,000+ miles round trip. At the speed of light, that takes roughly 600 milliseconds — and that's the absolute minimum, before any network processing. This delay is physical, not technical, and cannot be reduced by any software update or infrastructure improvement.

Low Earth Orbit (LEO) satellites — what Starlink and Amazon Kuiper use — orbit at 340–550 miles. Signals travel roughly 80× less distance, resulting in latency of 20–60ms. This is in the range where video calls, gaming, and VPNs work normally.

Data caps: what throttling actually means

HughesNet advertises plans starting with 15GB of data. Viasat plans typically include 40–100GB depending on tier. Both providers use the language "data cap" loosely — there isn't a hard cutoff, but exceeding the threshold triggers speed throttling so severe that many users describe post-threshold service as essentially unusable.

HughesNet throttles to approximately 1–3 Mbps after the monthly allowance is exhausted. Viasat throttling varies but can similarly drop to single-digit Mbps. At 1–3 Mbps, standard definition streaming is possible but barely. HD streaming, video calls, and downloads become painful.

Both providers offer "bonus zones" — typically late-night hours (2am–8am) when data use doesn't count against your cap. This is useful for scheduling large downloads but doesn't help with normal daytime use.

Starlink and T-Mobile Home Internet have no hard data caps. Starlink's terms mention the possibility of network management during congestion, but in practice most subscribers report consistent speeds throughout the month.

Contract terms: what to watch for

Both HughesNet and Viasat require 24-month service contracts. Cancelling early incurs early termination fees — typically up to $400 for HughesNet and up to $500 for Viasat depending on how far into the contract you are.

Additionally, both providers typically lease equipment rather than selling it outright. At the end of the contract (or at cancellation), you're responsible for returning the equipment in working condition or paying a non-return fee.

Starlink and T-Mobile Home Internet are month-to-month with no early termination fees. Both allow cancellation at any time. Starlink hardware is purchased rather than leased — the dish is yours.

Before signing a long-term contract: Ask specifically about the early termination fee amount, equipment return requirements, and whether the first-year promotional pricing is guaranteed for the contract duration or increases after the promotional period.

Installation requirements

Starlink requires a clear view of the northern sky (in the US) free of obstructions — trees, buildings, or hills that block the view will cause frequent outages. Starlink offers an app that uses your phone's camera to check for obstructions at your intended installation location before you order. The dish mounts on a roof, wall, or ground mount. Self-installation is straightforward for most homes.

HughesNet and Viasat both require professional installation — a technician points the dish at the correct geostationary satellite. Scheduling can take 1–2 weeks. Professional installation is typically included in the service agreement.

T-Mobile Home Internet is self-installed. The gateway device (which looks like a router) is shipped to you. You place it near a window for best signal, plug it in, and set up via the T-Mobile app. No dish, no technician, no roof mounting required.

Questions to ask before subscribing

Before committing to any satellite internet plan, get clear answers on:

  • What is the maximum speed available at my specific address (not the plan maximum)?
  • What is the data cap, and what happens when it's reached — what speed does service throttle to?
  • What are the exact early termination fees, and do they decrease over time?
  • Is the equipment purchased or leased? Who pays for repairs?
  • Is the first-year price a promotional rate? What does it increase to after the promotion?
  • What is the installation timeline, and is there a fee?
  • Is there a trial period with full refund available?