With Hong Kong being so close to Taiwan, plus its abundance of famous food and attractions and minimal language barrier, it's become one of Taiwanese travellers' favorite destinations.

In this article, we'll compare common ways to get online in Hong Kong, including a Hong Kong data SIM card, pocket Wi-Fi router, and traditional carrier roaming, to help you quickly find the best option for you — let's dive in!

Comparing Hong Kong internet options: data SIM card, pocket Wi-Fi, or carrier roaming

If you're planning a trip to Hong Kong, getting online is absolutely one of the essentials to sort out beforehand. But beyond free Wi-Fi offered by hotels or shops, are there other ways to stay connected?

Generally, there are three ways to get online in Hong Kong — here is a table breaking down the differences:

OptionHong Kong data SIMPocket Wi-Fi routerHome carrier roaming
How it worksBuy a physical Hong Kong SIM and swap it in once thereRent a Wi-Fi router from a provider; connect to it once turned onActivate roaming through your home carrier
Calls/texts included?Depends on the planNoYes
Highlights• Affordable, and works with your own phone
• Wide range of plans to choose from		• Priced by day, no speed cap
• One device shared among a group, better value overall		• No SIM swap or rental device needed
• Still able to send/receive calls and texts to your home number while abroad
Best forHeavy data users, independent travellers, backpackersGroups travelling togetherShort trips/business travel, light data users

How do you choose a Hong Kong data SIM?

From the table above, there are clearly three main ways to get online in Hong Kong, and we recommend a physical SIM card above all — not just for the lower price, but for the range of plans available, including genuinely unlimited data in Hong Kong.

With so many providers selling Hong Kong SIMs, how do you decide? Here are 3 things to consider:

1. Which Hong Kong carrier is it on?

Hong Kong has 7 carriers in total, with the most well-known being HKT, 3 Hong Kong, China Mobile Hong Kong, and SmarTone.

Generally, the first three carriers listed are all major local providers, and also common partners for many Hong Kong data SIMs, so whichever you go with, signal and speed are well covered.

If you're considering a Hong Kong SIM from a smaller local carrier brand instead, it's worth checking online reviews carefully first.

2. How much data do you need in Hong Kong?

Data allowance tends to be travellers' top concern, since many Taiwanese are used to unlimited plans at home and naturally worry about running short abroad, often leaning toward a Hong Kong unlimited data plan.

In reality, we recommend just getting enough data for your needs, since most trips are short — many people spend only three or four days in Hong Kong, mostly focused on sightseeing and eating. Surely no one is heading all the way to Hong Kong just to lie in a hotel room binge-watching videos, right?

If you're genuinely used to unlimited data but don't want to spend too much on it, consider a daily-capped unlimited plan instead, such as 1GB per day or 2GB per day unlimited — even after your daily cap is throttled, you'll still stay connected.

3. Does it support Facebook/LINE?

Since Hong Kong is a special administrative region of mainland China, many travellers worry that buying a Hong Kong data SIM might block access to Facebook, LINE, or YouTube, which is a common question online.

In reality, there's some chance of this — you'd need a VPN to access them otherwise. So we recommend double-checking before buying a Hong Kong data SIM, to avoid the hassle of buying one that doesn't work for you!

Where can you buy a Hong Kong data SIM?

1. Dedicated SIM retailers

Not everyone realises there are companies dedicated to selling travel SIM cards. These companies generally have relevant telecom expertise and their own dedicated infrastructure connected directly to Hong Kong carriers, giving you a stronger guarantee of quality.

Take DJB's Hong Kong data SIM as an example — the range of plans is genuinely varied, including the daily-capped unlimited plans mentioned above, full Hong Kong unlimited data, and combined Hong Kong-Macau or China-Hong Kong-Macau plans, covering the needs of every kind of traveller or business trip.

2. Shopee

Searching Shopee for a Hong Kong data SIM turns up all kinds of sellers and plans, generally at very low prices.

The upside of Shopee's Hong Kong SIMs is the low price, but the downside is that it is harder to trace where the SIM actually comes from. We recommend comparing a few sellers and checking other buyers' reviews before purchasing, or you risk unstable signal, no signal at all, or an expired number!

3. Travel service platforms

Well-known travel platforms like Klook and KKday also sell Hong Kong data SIMs. Buying through these platforms tends to mean more consistent quality, with the option to have it shipped ahead of time or pick it up directly at Hong Kong's airport.

The downside is that they are essentially agents — if you run into any issues once abroad, their support may not be able to respond quickly to technical questions.

4. At Hong Kong's airport

Finally, you can also buy a Hong Kong data SIM directly in the arrivals hall once you land in Hong Kong. The upside is a staff member sets it up for you on the spot, so there is no risk of a SIM that will not work; the downside is that if you are on a tight schedule, setting aside about 30 minutes to buy a Hong Kong SIM could feel like wasted time.

Further reading:
>> eSIM vs. physical SIM: what is the real difference? eSIM has few downsides and is genuinely easy for anyone, tech-savvy or not
>> Which Chinese carrier should you pick? Comparing China's 3 major carriers, some of which don't support Taiwanese phone bands
>> 5 things you didn't know about Hong Kong Disneyland — how to plan your visit and dodge the crowds