D-Link F518 5G Wi‑Fi 6 AX1800 Mobile Hotspot Review: All-Day Mobile Hotspot

Introduction & Specification Details and Close-up

While the market for mobile hotspot devices has shrunk considerably over the years, given that most telcos are quite happy for you to use your existing smartphone as an ad-hoc hotspot, they do still have their place.

That could be for straight-up business reasons, or because you don't want to drain away your smartphone's battery, or if you've got a personal or work-related reason to need to share a single connection amongst a small cohort of Internet-ready devices. D-Link's latest offering, the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot has a slightly unusual design, but it stands out simply for how long it can maintain a multi-device connection.

It's still quite true that for most of us our smartphones are more than enough for those times when a simpler connection is needed, but if you've got a consistent need for mobile data that doesn't also kill off your phone, then the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot is worth considering.

Specifications

Design & Software

Design

Out of the box, the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot really doesn't look much like a mobile router at all.

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Instead, it looks like a big power bank. That's not accidental.

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Most of the mass, size and underlying technology in the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot relates to it being a big power bank, so much so that you can optionally use it as a battery pack to keep other devices powered up if that's your wish. It just so happens to also contain the basic elements of a mobile hotspot.

While it's "portable", given it measures in at 147x72x15mm and weighs 274 grams, calling it "pocketable" is a bit of a stretch unless you also fancy stretching out your pockets quite a lot.

Plenty of mobile hotspots incorporate small display screens to give you essential connection information, but that's not what D-Link has opted for here.

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Question #1

How long does the D-Link F518's 8000mAh battery last under a typical workday multi-device load?

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Question #2

Can the D-Link F518 be used to charge other devices and act as a power bank while providing hotspot service?

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Question #3

Does the D-Link F518 support eSIM or only physical Nano‑SIM cards?

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Question #4

What Wi‑Fi bands and maximum AX1800 speeds does the D-Link F518 advertise, and how do those compare to its mobile data throughput?

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Instead, you get simpler connection lights on the front, while on the back you'll find a sticker with the basic default connection information for Wi-Fi on the 2.4GHz and 5GHz bands.

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It would be a smart idea to store this information somewhere, because I strongly suspect over time it's going to wear out, at which point you'd be stuck with a power bank that was only useful as... a power bank.

Keeping with the simple style of using a sticker for connection information, the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot only has two buttons on the side for power and WPS connectivity.

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On the left-hand side, there's a single Nano-SIM card tray behind the typical pinhole eject mechanism.

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Finally, at the base there's a USB-C port for charging the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot, or using it as a power bank if your phone has more of a need for power than it does mobile data.

Installation

At a base level, there's almost nothing to the setup of the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot, because it's configured as per the sticker on the back. Pop in a Nano SIM card that's set for your mobile data network of choice, hit the power button, and give it a minute or two for the indicator lights to show an established data connection and connect to either its 2.4GHz or 5GHz networks.

That's not to say that you can't configure the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot, though I suspect most buyers will likely leave it to its default settings.

With no display screen for setup, that means you're stuck with just a web interface, and it's not exactly a complicated or feature-rich setup.

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The base homepage shows you current network status, data throughput rates, battery status, and the number of connected devices.

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The Network settings page lets you set your mobile provider settings if they're not already being read from the Nano SIM and network itself.

The Wi-Fi settings page lets you configure the essential settings for the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot's simpler Wi-Fi settings; clicking on "More Wi-Fi Settings" here will simply take you to the advanced page where you can set bandwidth settings, MAC filters and SSID broadcast status.

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The Devices page gives you the rundown of connected and known devices, and the Statistics page gives you... Statistics. What, you expected something different there?

It's entirely feasible to throw in a regular mobile phone Nano SIM in the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot, though not an eSIM as there's no capability for that, and what that does mean is that you could use the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot's web interface to send or receive SMS messages. That's really only likely to be useful if you find texting difficult from a smartphone touchscreen and need keyboard access, and it only supports basic text SMS, nothing else.

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I tested the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot using a Telstra physical Nano SIM in Sydney to see how well it could live up to its speed claims. In theory, as an AX1800 device, you should be able to get up to 1800Mbps throughput over its Wi-Fi, but that's a speed claim that does come with some qualifiers.

For a start, that's Wi-Fi speed, not mobile broadband speed, so you'd only realistically see that in device-to-device transfers, and realistically likely slower than that unless both devices were very close and running quite minimal OS overhead.

For actual mobile data speeds, it's capable of up to a theoretical 2.6Gbps on 5 GHz sub-6 GHz bands; there's no evident support for mmWave on the bands used by Australian carriers as per D-Link's spec sheet for the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot.

There's an obvious mismatch there in that the Wi-Fi speeds are never going to match those data speeds, but then this is all just theoretical in-lab speed anyway. In day-to-day testing, I hit my typical peaks and troughs for tested speeds with a Google Pixel 10 Fold Pro connected to the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot; around 50Mbps down at worst and no more than 450Mbps down at best.

For a single device, that's likely to be fine for most situations in that location; of course, if you're in the middle of nowhere or want to share the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot's data across dozens of devices, you're going to struggle a little more.

Most pocket Wi-Fi routers struggle a lot with range issues, and that's no surprise at all. With only internal antennas to work from, there's a solid limit to how far their Wi-Fi range can reach, and for many of them that can peter out just a few meters away, if that.

This typically isn't a huge issue for personal hotspots, but it's more of a concern if you wanted the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot to provide access to a mid-sized room's worth of systems.

Here it performed well above my expectations, managing to work even in larger rooms and in a couple of instances even through a few smaller walls in an office environment. Range is always variable and I wouldn't push it, but within this category, the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot performs very well indeed.

D-Link's claim for the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot's 8000mAh battery is that it's capable of running for up to 16 hours. Any figure modified by "up to" is by its nature rubbery, and that battery life will depend on the exact load you put on it.

What most people are likely to want is a working day's usage for at least one or two devices, so that's precisely how I tested it, connecting up a MacBook Air M2 and Google Pixel 10 Pro Fold and using it as my primary connection for a 9-5 working day without recharging it at any time.

At the end of the day, its battery meter on its web interface indicated a battery charge level of 22%, which meant it still displayed green on the device itself. The battery lights on the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot aren't all that useful, sadly, as they stay solid green from 99% to 20% battery capacity, only falling to a red light at 20% and a blinking red light at 5% or less.

Because it is really just a big powerbank, it is worth noting that if you do run it all day, it will become just a little bit warm. I never felt like it was going to catch fire or anything, and honestly in the colder winter months it could be a nifty little hand warmer of a sort, but this is worth keeping in mind if you're going to be traveling with it, especially with the restrictions many airlines place on power banks these days.

Final Thoughts

Your need for a mobile hotspot device in this day and age will vary a lot; for most of us, ad-hoc hotspot activity from our smartphones is all we're likely to need if you only need a few minutes of access for a secondary device.

If you are in the market for a mobile hotspot, however, the D-Link F518 5G Wi-Fi 6 AX1800 Mobile Hotspot does a reasonable amount to impress. The highlight here is really the fact that D-Link's built it around a power bank, and that gives it the longevity to just keep on running all day long, though I was also impressed by its Wi-Fi range.

The downsides here are worth keeping in mind, however. Its indicator lights aren't particularly useful, and having to log into a web interface to check any useful metrics gets old quickly. The lack of eSIM support also makes it a less compelling prospect for international travelers, as you'd either have to invest in a physical travel SIM or buy a local SIM on arrival rather than the convenience of quick software-based mobile broadband accessibility.