How to Choose a 4G LTE or 5G Router
Cellular router spec sheets are full of numbers that do not predict real performance. These are the five that do.
1. Band support is the first filter
A cellular router can only use the frequency bands its modem supports, and carriers use different bands in different places. A router missing the band your local tower uses will either fail to connect or fall back to a weaker one, no matter how impressive the rest of the specification is.
Low-band frequencies travel furthest and penetrate buildings best, which is what matters in rural areas. Mid-band carries the modern 5G speed increase. If you are rural, band support in the low range is more important than the headline peak speed. Check that the router explicitly lists the bands your carrier uses in your area rather than assuming broad compatibility.
2. Carrier aggregation and modem category
Carrier aggregation lets a modem combine multiple frequency bands simultaneously for more throughput and better stability. More aggregation capability generally means better real-world performance at the same signal level, which matters most at the edge of coverage.
Modem generation and category indicate the theoretical ceiling. Treat these numbers as a rough tier indicator, not a promise: quoted peak speeds are laboratory figures achieved under conditions no home ever sees.
3. External antenna ports
This is the specification most buyers overlook and most rural users end up needing. Ports labelled TS-9 or SMA let you attach an external antenna, which is routinely the largest single performance improvement available in a weak-signal location.
A router without antenna ports puts a hard ceiling on what you can do about poor signal. If you are rural, in an RV, or in a metal-roofed building, treat antenna ports as a requirement rather than a nice-to-have.
4. Wi-Fi generation and device capacity
The cellular side gets the internet to the building; the Wi-Fi side distributes it. Wi-Fi 6 handles many simultaneous devices far more gracefully than older standards, which is the difference you feel in a household full of phones, TVs, cameras and smart devices — more than raw speed.
Check the stated maximum client count. Older or budget routers can struggle well before their advertised limit. Dragon Router, for example, is Wi-Fi 6 and supports up to 128 connected devices, which is the relevant number for a busy house or a workshop full of equipment.
5. Locked vs unlocked, and what SIM it takes
A locked router works only on one carrier's network. That is fine if that carrier has the best coverage at your address and you have no plans to change.
An unlocked router accepts SIMs from multiple carriers, which matters for travelers, RVers and anyone who might need to switch when coverage changes.
Check whether it takes a physical SIM, an eSIM, or both. eSIM makes switching easier but is not supported by every plan.
Confirm the plan you intend to use is actually permitted on a router rather than restricted to phones — some plans distinguish between the two.
Specifications that matter less than the marketing suggests
Peak theoretical speed. It is a laboratory figure and does not predict what you will get at your address.
Antenna count on the box. Internal antenna quality and placement matter more than the number printed on the packaging.
Processor specifications. Rarely the bottleneck in a home cellular router.
App features and dashboards. Pleasant, but they do not change throughput.
Supports the bands your carrier uses at your address, especially low-band if you are rural.
Has external antenna ports.
Wi-Fi 6 or newer, with a device capacity that comfortably exceeds your household count.
Exposes signal metrics such as RSRP and SINR so you can position it intelligently.
Runs on a plan that permits router use and does not lock you into a long term while you test coverage.
Self-install, so you can try it at the address before committing.
How Dragon Router measures up
Dragon Router is a Wi-Fi 6 cellular router supporting up to 128 connected devices, self-install with no technician visit, running on Core 100 service at $99.95 per month with no annual contract. The router is $99, and after six months of active service it is yours. Real-world speeds vary by location and network conditions and can exceed 300 Mbps in strong-signal areas — which is why the right first step is checking availability at your service address rather than comparing spec sheets.
What should I look for in a 4G or 5G router?
Band support matching your carrier at your address, carrier aggregation capability, external antenna ports, Wi-Fi 6 with adequate device capacity, and whether it is locked to one carrier.
Do I need a 5G router or is 4G LTE enough?
If mid-band 5G is available at your address, a 5G router is worth it. In areas served mainly by LTE or low-band 5G, a good LTE router with strong band support and antenna ports often performs just as well.
Why do external antenna ports matter?
They let you attach an external antenna, which is usually the largest available performance improvement in a weak-signal location. Without ports there is a hard limit on what you can do about poor signal.
What is carrier aggregation?
The ability to combine several frequency bands at once for higher throughput and better stability. It generally improves real-world performance more than a higher peak-speed rating does.
Should I buy a locked or unlocked cellular router?
Locked is fine if one carrier clearly has the best coverage at your address and you will not switch. Unlocked is better for travelers, RVers and anyone whose coverage situation might change.
How many devices can a cellular router support?
It varies widely. Budget models struggle well before their stated limits; modern Wi-Fi 6 hardware such as Dragon Router supports up to 128 connected devices with much better handling of simultaneous traffic.
Are advertised router speeds accurate?
They are theoretical maximums measured in ideal laboratory conditions. Actual speed depends on signal, band availability, tower congestion and placement, so treat them as a tier indicator only.
5G and LTE home internet router
How cellular home internet works.
What actually changes in use.
Wi-Fi 6, 128 devices, no annual contract.
Frequently asked questions
- What should I look for in a 4G or 5G router?
- Band support matching your carrier at your address, carrier aggregation capability, external antenna ports, Wi-Fi 6 with adequate device capacity, and whether it is locked to one carrier.
- Do I need a 5G router or is 4G LTE enough?
- If mid-band 5G is available at your address, a 5G router is worth it. In areas served mainly by LTE or low-band 5G, a good LTE router with strong band support and antenna ports often performs just as well.
- Why do external antenna ports matter?
- They let you attach an external antenna, which is usually the largest available performance improvement in a weak-signal location. Without ports there is a hard limit on what you can do about poor signal.
- What is carrier aggregation?
- The ability to combine several frequency bands at once for higher throughput and better stability. It generally improves real-world performance more than a higher peak-speed rating does.
- Should I buy a locked or unlocked cellular router?
- Locked is fine if one carrier clearly has the best coverage at your address and you will not switch. Unlocked is better for travelers, RVers and anyone whose coverage situation might change.
- How many devices can a cellular router support?
- It varies widely. Budget models struggle well before their stated limits; modern Wi-Fi 6 hardware such as Dragon Router supports up to 128 connected devices with much better handling of simultaneous traffic.
- Are advertised router speeds accurate?
- They are theoretical maximums measured in ideal laboratory conditions. Actual speed depends on signal, band availability, tower congestion and placement, so treat them as a tier indicator only.