Best eSIM Singapore for Australians | Top Singapore Travel eSIMs 2025

Planning a trip to Singapore and trying to figure out which travel eSIM is actually worth it? I’ve been there... The first time I visited Singapore, I spent half an hour wandering around Changi Airport completely distracted by how spotless everything was, only to realise I’d forgotten to sort my mobile data. Since then, I’ve learned that having your eSIM sorted before you fly makes the entire arrival experience feel a whole lot smoother. In this guide, I’ll walk you through the best Singapore eSIM options for Australians, how much data you actually need, which mistakes to avoid, and how to set everything up so you can land, switch on your phone, and dive straight into the good stuff. Let’s get into it.

What Is the Best eSIM for Singapore Travel?

If you're heading to Singapore and trying to figure out the best travel eSIM, the good news is that you really can’t go too wrong. Singapore has some of the strongest mobile networks in the world, so the real difference comes down to price, data limits, hotspot rules, and how easy the whole thing is to set up. Tldr; based on everything I’ve tested and all the feedback we see from customers, I think the ZenSim 20GB Singapore plan at A$33 ($21 USD) is the best value for most travellers.

Choosing the best eSIM for Singapore travel basically comes down to a few simple things, let’s crack into them below.

Key Factors Australians Should Consider

Here’s my pro tip: there’s a lot of noise in the eSIM world, so I always suggest checking reviews before anything else. That’s the easiest way to get a real understanding of coverage, speeds, and whether a provider actually delivers what they promise. A lot of companies use pretty marketing words but hide things like speed caps or hotspot limits in the fine print (I see you Holafly). Find a provider who is open about all of this (like ZenSim), including unlimited hotspotting and clear info on unlimited daily speed caps when relevant, which is something I personally care about when travelling.

Another thing worth checking is how easy the provider makes your life after you’ve bought the eSIM. Do they have an app? Can you top up? Can you check your usage without digging through menus? These things matter when you’re navigating a new city and don’t want to deal with technical hurdles. Responsive customer support is also one of the most underrated factors. If something goes wrong at the airport, you want someone to reply quickly. Some providers are great at this, and some... not so much. Again I would recommend checking the reviews for this info over trusting marketing speak.

Why eSIMs Work So Well in Singapore

Singapore is one of those places where almost every provider performs well simply because the local networks are excellent. The country is small, densely connected, and built with strong 4G and 5G infrastructure, so you’d be hard pressed to find a travel eSIM that delivers genuinely bad coverage there. This means the real differences between providers usually come down to pricing, transparency, and how easy they make things for you rather than raw network performance.

How Much Data Do You Really Need for a Trip to Singapore?

How much data you need really depends on how you travel, but here’s a simple way to think about it. For a 7 to 14 day trip, most regular users will be totally fine with 10GB unless you’re someone who streams a lot or uses your phone heavily throughout the day. In that case, 20GB is a comfortable sweet spot. If you’re working remotely or doing anything that involves tethering a laptop, unlimited data makes life much easier. For longer stays around 30 days, I'd recommend 20GB or unlimited depending on your budget. All ZenSim Singapore plans include unlimited hotspotting, which is perfect if you’re working remotely or if you like sharing your data with the homies.

Common Mistakes Australians Make When Buying a Singapore eSIM

There are a few classic mistakes I see Aussies make when choosing a Singapore travel eSIM, and they’re all easy to avoid. The first is buying too little data and then stressing halfway through the trip, so use the guidelines above to pick something realistic for your stay – though you can also buy small and top up after but it will cost you more.

Another big one is choosing an unlimited plan without checking the fine print. Every provider has daily speed caps of some sort, but what matters is how clearly they explain it. For example, our ZenSim unlimited plan slows down after 3GB per day, and we’re upfront about it. Activation timing is another common issue. Most eSIMs only activate once you arrive in Singapore, but it’s still worth confirming with whoever you buy from before you purchase.

Reviews are also a lifesaver, so don’t skip them. And finally, if your trip includes a quick hop to somewhere else in Asia, make sure your eSIM covers more than just Singapore, like our Asia eSIM which covers multiple destinations across the region – easy as.

Compare Best Singapore Travel eSIMs (2025)

The below competitors all offer Singapore eSIMs with different balances of price, data, and extras. This comparison focuses on 30 day options, so you can quickly see how everyone stacks up against some big names on cost, network experience, and plan structure without wading through long sales pages or generic marketing claims.

ZenSim

ZenSim is an Australian owned brand with a strong 4.9/5 rating on ProductReview and a reputation for excellent coverage and friendly support worldwide. You can monitor usage and top up in the ZenSim app, and the same eSIM supports multi-country top ups. Unlimited plans allow full hot spotting, with a clear 3GB per day high-speed fair use policy, making ZenSim’s Singapore options easy to understand and manage. Plans:

• 30 day 10GB - A$23 (US$15)
• 30 day 20GB - A$33 (US$21)
• 30 day Unlimited - A$99 (US$61)

Airalo

Airalo is a huge, globally recognised eSIM marketplace with a simple in-app top up and usage tracking experience via Airalo. It offers similar Singapore data sizes to ZenSim, but pricing for 10GB and 20GB tends to sit a tiny bit higher. In testing, Airalo often uses lower tier networks compared with some rivals, and its Trustpilot rating of 3.9/5 suggests a more mixed user experience overall. Plans:

• 30 day 10GB - A$24.50 (US$16)
• 30 day 20GB - A$34.50 (US$23)
• 30 day Unlimited - Not available

Holafly

Holafly is a very well known eSIM brand that focuses on unlimited data, which can be appealing if you dislike tracking gigabytes. For Singapore, Holafly only offers unlimited plans and lets you choose the number of days you need. That convenience comes with higher pricing than most competitors, also with an unclear fair use policy and a 500MB per day hot spot cap that power users may find restrictive. Plans:

• 30 day Unlimited - A$117 (US$74.90)

Simify

Simify is another Australian owned brand and a familiar name for many travellers, with a broad catalogue of eSIM data options (up to 100GB). For Singapore eSIMs, their 10GB and 20GB plans through are generally more expensive than others in this comparison. Simify also does not offer an app for checking usage or topping up. Plans:

• 30 day 10GB - A$39 (US$23)
• 30 day 20GB - A$75 (US$45)
• 30 day Unlimited - A$109 (US$63)

Jetpac Global

Jetpac Global is a well known provider with a strong 4.7/5 Trustpilot score. Their Singapore pricing for capped data and unlimited plans is on the higher side, though there are regular specials. Reviews also mention that setup can feel more complicated, and customer service is not always as helpful as expected but a solid choice none the less. Plans:

• 30 day 10GB - A$53.50 (US$34)
• 30 day 20GB - A$86.50 (US$55)
• 30 day Unlimited - A$235.50 (US$150), currently on sale for A$104 (US$65.99)

Comparison Summary for Singapore eSIMs

In this Singapore comparison, Airalo and Jetpac Global stand out for brand recognition, while Holafly appeals to travellers who only want unlimited data. Simify is familiar to many Australians but comes in at higher price points. ZenSim’s 20GB and Unlimited 30 day plans offer some of the strongest overall value, combining clear fair use terms, full hot spotting, competitive pricing, and highly rated support.

Best eSIM Options for Singapore Travel Break Down

Best Overall Singapore Travel eSIM

ZenSim delivers the best overall balance of value, coverage, and ease of use. Its 20GB and Unlimited 30 day plans are priced below most major competitors while offering strong network performance and full hot spotting. Airalo is a solid runner up, but slightly higher pricing makes ZenSim the stronger overall choice for most travellers.

Best Budget Singapore eSIM

For travellers watching costs, ZenSim offers the most affordable mix of price and data. Its 10GB and 20GB plans come in cheaper than Airalo, Simify, and Jetpac Global without limiting speeds or coverage. Airalo provides a convenient alternative for users already in the app ecosystem, but its pricing remains a touch higher across comparable data sizes.

Best Unlimited Singapore eSIM

ZenSim offers one of the most competitive unlimited options at A$99 for 30 days, with clear high-speed fair use that resets daily. Holafly provides a simple unlimited-only setup but comes in at a higher price. Jetpac Global also offers unlimited data, yet its regular pricing is the highest in this comparison unless discounted.

Best Short-Trip Singapore eSIM

For 3 to 7 day visits, ZenSim and Airalo stand out because they provide smaller short-term data packs in its Singapore range from 5-10 days, making it easy to avoid paying for a full month. Holafly also supports shorter unlimited packages by day which is great for travellers who prefer not to track data.

Best Long-Trip Singapore eSIM

For trips of 15 to 30 days, ZenSim is the strongest pick thanks to competitively priced 20GB and Unlimited plans, reliable coverage, and simple app-based management. Simify and Jetpac Global also offer 30 day options, but higher pricing reduces their value for longer stays. Holafly works well for heavy users who prefer unlimited data, though pricing is higher for a product which has more limitations than competitor unlimited plans.

Why Australians Should Use a Singapore Travel eSIM

Install in Australia and activate on arrival

A good Singapore travel eSIM lets you install the profile at home and have it activate automatically the moment you land. Some providers don’t actually do this if you can believe it, which adds hassle on arrival. Choosing one that sends the eSIM instantly and activates it on first network connection means you only need to switch it on in your phone settings and you are ready to go from touchdown.

Avoid Roaming Charges From Australian Telcos

Roaming with major Australian telcos can be brutally expensive. Some charge around $15 per day (crazy right), and even the cheaper $5 per day options add up fast. A 30 day trip at $5 per day is already $150, $10/day will run you $300, which makes the savings from a Singapore eSIM immediately clear with a ZenSim 30 day unlimited plan coming in under $100 and 20GB plan less than half that price again.

Keep Your Aussie Number Active

Most Australian providers allow you to keep receiving important SMS messages while using a travel eSIM, thanks to dual SIM support in modern phones. Just be aware that a few telcos (Telstra), may charge for simply having the SIM active overseas. If unsure, disable your physical SIM while abroad. Your WhatsApp number will continue working normally either way using your travel eSIM data.

Extra Countries in Asia?

If you are stopping in multiple destinations, an Asia regional eSIM keeps things simple. The ZenSim Asia eSIM covers 11 countries, eliminating the need to buy separate plans for each stop. ZenSim also allows you to top up the same eSIM with different country plans outside Asia, making multi-region travel far easier to manage.

How to Set Up Your Singapore eSIM

Any provider worth their weight will give you crystal clear instructions on how to set up your Singapore eSIM. ZenSim actually sends these instructions twice over a couple of days just to make sure nothing slips through the cracks. Still, it’s always nice to have everything laid out in one place, so here’s a simple breakdown of how the setup process works no matter which provider you choose. Once you understand the flow, you’ll see just how quick and painless the whole thing is.

When can I purchase my Singapore eSIM

You can buy your Singapore travel eSIM anytime you like. Some people grab it weeks before their trip, others do it at the airport on the way out. Both are totally fine. I usually recommend purchasing it before you go so you can install it at home while you have reliable WiFi. Once it’s installed, all you need to do after landing is switch the data settings over and you’re ready to go.

Installing the eSIM Before Flying

After you complete your purchase, you’ll receive a QR code and, depending on the provider, access to their app as well. You can either scan the QR code in your phone’s settings or log into the app and follow the steps there to download your eSIM. This part only needs to be done once. After it’s installed, you never have to scan or download it again. We recommend installing your Singapore eSIM before you leave Australia because you’ll need WiFi to complete this step. If you see a “Cannot activate” message during installation, don’t stress. It happens when you’re still outside the destination country, and it’s totally normal.

Activating Upon Landing

Once you land in Singapore and your phone comes off flight mode, you’ll just need to do two quick things. First, enable data roaming for the new eSIM (or your phone if Android). Second, set that eSIM as the one your phone should use for mobile data. Both steps take only a few taps in your settings. Your provider should have already sent you instructions, but if you ever feel stuck, you can check out our eSIM connectivity troubleshooting guide.

Singapore eSIM Issues

The good news is that genuine problems are pretty rare. Around 95 percent of the issues we see can be fixed by following the steps in our eSIM connectivity guide.

FAQs About Using an eSIM in Singapore

Here are some of the most common questions travellers ask when planning to use a Singapore travel eSIM.

Is My Phone Compatible With Singapore eSIMs?

Most modern phones support eSIMs, but it’s always worth double checking before you buy. The easiest way is to use our eSIM compatibility checker. It quickly tells you if your device can handle an eSIM and saves you from finding out too late. If you haven’t used an eSIM before, don’t worry, compatibility is often the only thing you really need to check, and after that the process is straightforward.

If you purchase a ZenSim eSIM and your phone happens to not be compatible, we will happily refund you to take the worry out of it.

Are eSIMs Better Than Airport SIM Cards in Singapore?

In my opinion, yes. Singapore’s airport SIM kiosks have been around for a while, but eSIMs win for a few simple reasons. First, you get to compare pricing online before you leave Australia rather than rushing at the airport. Second, you can look at reviews to be sure the provider you’re choosing actually does a good job, which is something you can’t really judge from a kiosk. And finally, if something goes wrong, you can contact the provider online, which is far easier than trying to deal with an airport stall once you’ve left the terminal. Trust me, that part alone makes eSIMs worth it.

Do I Need Unlimited Data in Singapore?

This one depends entirely on how much data you normally use. A good trick is to check your typical monthly usage with your mobile provider, then add around 30 percent because most people post more, navigate more, and use their phones a bit heavier while travelling. Unlimited data is a great fit if you work remotely or want peace of mind in case your hotel WiFi is terrible. It’s also good if you just prefer not to think about usage at all. These days, unlimited travel eSIMs are reasonably priced, so choosing one often comes down to how stress free you want your trip to be.

Summary

If you’ve made it this far, you should have a clear idea of which Singapore travel eSIM fits your trip, how much data you’ll realistically need, and how to set everything up without any stress. Singapore is one of the easiest places in the world to use an eSIM, and with the right plan you’ll be online from the moment you land. If you have any questions at all or need help choosing a plan, feel free to reach out to us. We’re always happy to point you in the right direction!