A mobile router does one thing your phone's hotspot does badly: it turns a SIM card into a proper Wi-Fi network, built to run all day, for as many devices as the router supports.
Unlike a fixed router wired to your landline, a mobile router connects to the mobile networks. You insert a SIM, it stands up a local Wi-Fi network, and every phone, tablet and laptop you own joins it — not just the one device holding the SIM. Some models add a LAN port or USB tethering so equipment without Wi-Fi can connect by cable. The places they earn their keep are exactly where you would expect: holiday lets, caravans and hotel rooms on business trips.
From a tested field of mobile routers, here is what actually separates them.
The mobility trade-off is real
If the router travels with you, compact and light matters — but be clear what miniaturisation costs. Very small models usually give up the display (or at least the touchscreen) and the extra connections such as a LAN port. The battery also needs physical space: a high capacity does not fit in a tiny case.
Not every manufacturer even states a runtime per charge, which is why measured continuous-operation figures matter more than brochure claims in this category.
The removable battery is an underrated feature
Unlike nearly every phone and tablet, many mobile routers still have removable batteries, and that buys you two things: a worn-out battery can be replaced rather than retiring the router, and you can travel with spares — swapping cells to keep the network alive far from a socket.
Two related points worth knowing. These devices can generally transmit and charge at the same time, so a power bank keeps one running without any battery-swapping. And a few models run with no battery at all, straight from the mains — pointless for travel, but it spares the battery entirely if the router mostly lives in one place.
LTE or 5G — be honest about the need
Every mobile router speaks LTE, and LTE is often enough: with a limited number of users and no heavy streaming, its data rates do the job. 5G buys you significantly higher speeds — the case for it is multiple users, large downloads or video calls that must not stutter.
The same honesty applies to Wi-Fi generations, and the picks below span four of them — from Wi-Fi 4 to Wi-Fi 7 — which is precisely why the measured numbers matter.
The picks
Best overall — TP-Link M8550. A battery-powered 5G router supporting all the important 5G and LTE bands, with outstanding functionality across the board. Its Wi-Fi is Wi-Fi 6E at 160 MHz channel width, and the measured results are excellent: up to 583 Mbit/s down and 509 Mbit/s up over Wi-Fi. It takes 32 devices, secures them with WPA3, and — unusually for a portable — carries a 1-gigabit LAN/WAN port, sockets for two external antennas, and a microSD slot. It also sends and receives SMS. The trade-off for all that equipment is mobility: at 274 grams it is on the heavy side, its runtime of almost 9 hours of continuous operation is decent rather than class-leading, and recharging takes about 3 hours.
Best value — TP-Link M7750. An LTE-only router — no 5G — covering all the relevant LTE frequencies via nano-SIM. Its Wi-Fi 5 standard is dated, with 80 MHz channels and the same 32-device support, and there is no LAN port and no external-antenna option. But the measured 236 Mbit/s download is perfectly serviceable for ordinary internet use, it reads data from a microSD card and connects by USB-C — and its endurance is strong at almost 15 hours, with a removable battery. If your need is browsing and mail rather than streaming for a household, this is the sensible money.
Cheapest usable option — Huawei E5586-326. Sparsely equipped and honest about it: LTE via micro-SIM on the old Wi-Fi 4 standard, 2.4 GHz only at 40 MHz width, measuring 92 Mbit/s down and 101 Mbit/s up. Sixteen devices, no LAN port, no antenna sockets, no display — settings are handled from a connected device. It can also serve as a Wi-Fi repeater and supports USB tethering, its battery is removable, and it runs about 7.5 hours, charging in under 2 hours. Slow but workable, and the floor below which a mobile router stops being worth carrying.
Best performance — Netgear Nighthawk M7 Pro. The forward-looking one: all important 5G and LTE bands plus Wi-Fi 7, whose 320 MHz channel width pays off in the measurements — 617 Mbit/s down, up to 600 Mbit/s up, outstanding for a mobile router. At 272 grams it is a little heavy but acceptable, it runs over 13 hours, and its battery is removable.
Best battery — Acer Enduro Connect M3 5G. Somewhat heavy but compact, and its endurance is the headline: nearly 22 hours of continuous operation, recharging in about 3.5 hours. All the important LTE and 5G bands via nano-SIM. The honest caveat: its battery is not removable, so the spare-battery strategy above does not apply — what you get per charge is what you get.
Model names to check
TP-Link's UK listings put the portable M8550 alongside the Archer NX505 and Archer NX210 — those are fixed 5G routers with SIM slots, not portables, at similar prices. German-language listings of the M8550 also appear in UK search results; check the listing language and seller before ordering, as a grey import will not help you with a UK warranty claim.
Before you buy
Four questions. How many people share it? One or two light users points to LTE and the value pick; a family streaming points to 5G. How far from a socket will it run? That decides between the battery champion and everything else. Do you need a cable connection for a TV, console or desktop? Only some models carry a LAN port. And is the battery removable? — the single best predictor of how long the router itself stays useful.
For fixed-line Wi-Fi at home, our best routers guide covers that side, and best mesh Wi-Fi systems covers whole-home coverage.
