Belong Roaming vs AussieRoam eSIM: Which Is Better?

Belong roaming is a simple, one-size-fits-all add-on that works well for light users who want to keep their existing number active, but it often falls short on data limits and country availability. For most Australians and Kiwis, an AussieRoam eSIM is the superior choice, offering massive data flexibility, local network speeds, and coverage in far more destinations than Belong’s standard roaming pack.

Whether you are sitting at Sydney International or Auckland Airport waiting for a flight to Denpasar, the decision you make about your phone data will define your trip. Do you want to be hunting for hotel Wi-Fi just to upload a reel, or do you want to land, turn off airplane mode, and immediately order a Grab or check your gate? Let’s dive into the nitty-gritty of Belong roaming versus the travel eSIM.

Understanding Belong Roaming

Belong, which runs on the Telstra Wholesale network back home, offers a straightforward roaming travel pack. For a flat fee, you get a set amount of data (usually around 3GB) and a small allowance for calls and texts, valid for 15 days. It is simple to activate via their app, and it allows you to keep your Australian mobile number active for receiving those crucial bank 2FA codes.

However, the limitations are real. Belong’s roaming pack only works in about 30 odd countries. If you are heading off the beaten track—perhaps crossing from Thailand into a country not on their list—your phone becomes a paperweight the moment you cross the border. Furthermore, 3GB over 15 days is roughly 200MB a day. In the age of high-definition Instagram stories and Google Maps, that is barely enough to get you through a morning of sightseeing.

The AussieRoam eSIM Alternative

An AussieRoam eSIM works differently. Instead of piggybacking on your home plan’s limited international agreements, these eSIMs connect you directly to local carriers like Telkomsel in Indonesia, Softbank in Japan, or EE in the UK. These are "data only" plans, meaning you don't get a local phone number, but in 2026, that is rarely an issue. You can still use WhatsApp, Messenger, and FaceTime to call home using your data.

You can see plans that range from tiny 1GB chunks for a quick weekend away to massive 50GB buckets for long-term digital nomads. This flexibility is something a standard telco roaming pack simply cannot match.

Why Local Networks Matter

When you use a roaming service like Belong, your data often has to travel all the way back to Australia and then back to your destination. This is called "backhauling," and it’s why your connection can feel laggy even if you have full bars.

With a travel eSIM, you are a local. In Bali, you aren't a roaming guest; you are using the same cell towers as the locals. This is vital if you are heading into the mountains, perhaps following our Munduk Waterfalls Guide: Best Spots to Visit in North Bali. Deep in the jungle, you need the strongest possible signal to ensure your GPS doesn't drop out.

Comparing the Features

Feature	Belong Roaming Pack	AussieRoam eSIM
Data Allowance	Fixed (e.g., 3GB)	1GB to 50GB options
Validity	15 Days	7, 15, 30, or 180 days
Network	Roaming Partner	Local Tier-1 Carriers
Phone Number	Keeps your AU number	Data Only (No number)
Setup	In-app activation	QR Code / Manual Install
Country Support	~30 Countries	Global (100+ countries)
Daily Passes	No	Yes (up to 10GB/day)

Data Needs by Activity

One of the biggest mistakes travellers make is underestimating how much data they actually use. If you are relying on a 3GB Belong pack for a two-week trip to Japan (dest:jp), you will likely run out by day four. Here is a rough guide to what uses your data:

• Google Maps: 50MB–150MB per hour of active navigation (especially with satellite view).
• Social Media (Instagram/TikTok): 600MB–1GB per hour of scrolling/uploading.
• WhatsApp Calling: 0.5MB per minute.
• Netflix/YouTube (HD): 2GB–3GB per hour.

If you're exploring Koh Lipe Island Travel Guide: Thailand’s Hidden Paradise, you’ll want to be uploading those crystal-clear water shots instantly. A 3GB limit will have you constantly hovering over your data settings, toggling things off to save megabytes. With AussieRoam, you can grab a 10GB or 20GB plan and stop worrying.

Choosing Your Plan: Fixed vs. Daily

Unlike Belong’s single option, AussieRoam offers a variety of structures to suit your travel style. If you are a heavy user, the daily passes are a game-changer. You can choose from tiers like 1GB, 2GB, 5GB, or even 10GB per day. Once you hit that limit, you still have data at a reduced speed, so you’re never truly cut off.

For those who prefer a set-and-forget approach, the fixed plans are excellent. You can see plans for 30 days with 5GB, 10GB, or 20GB, or even a 180-day plan with 50GB for those extended European (dest:eu-42) summer stints.

How to Install an eSIM Before You Fly

One of the best parts of using an eSIM is that you can have it ready before you even board your flight. No more squinting at a SIM card tool in a cramped airplane seat or queuing at a dodgy kiosk in Bangkok (dest:th).

1. Check Compatibility: First, make sure your phone is ready for eSIM. Most iPhones from the XS onwards and recent Samsung/Google Pixel phones are good to go.
2. Purchase and Scan: Once you buy your plan for the UK (dest:gb) or beyond, you will get a QR code via email.
3. Install: Go to your phone's Cellular/Mobile Data settings and "Add eSIM." Scan the code.
4. Label It: Call it "Travel" or "AussieRoam" so you don't get it confused with your Belong SIM.
5. Land and Toggle: When you land, simply turn on the travel line and ensure "Data Roaming" is switched ON for that specific eSIM.

For a more detailed breakdown, you can follow the setup guide to ensure you don't miss a step.

The Coverage Reality: Cities vs. Rural

In major hubs like London, Tokyo, or Paris, both Belong and AussieRoam will perform reasonably well. The difference becomes apparent when you head into the countryside. Belong relies on specific roaming agreements; if their partner carrier has poor coverage in the Scottish Highlands or rural Thailand, you are out of luck.

Because AussieRoam connects to major local players—and in Australia, uses both the Optus and Telstra 5G networks for our local plans—the coverage footprint is generally much wider and more reliable. If you are roaming in Australia on an AussieRoam plan, you are getting 5G speeds where available, not the throttled speeds often associated with MVNO roaming.

Avoiding the "International Day Pass" Trap

While Belong is better than some, many big telcos charge $5 to $10 per day just to access your home data. Over a three-week trip, that is over $200. Belong's $30 pack is cheaper, but the data is so low that many travellers end up buying two or three packs per trip.

By choosing an eSIM, you pay for exactly what you need. If you need more, you can simply top up. There are no hidden fees, no "daily access" charges, and no surprise bills waiting for you in your inbox when you return to Sydney or Auckland.

The bottom line

Belong roaming is a decent backup if you only need your phone for the occasional text or emergency, but for the modern traveller, it is too restrictive. An AussieRoam eSIM offers the freedom of local networks, the security of high data caps, and the convenience of being connected the second your plane touches the tarmac. Skip the bill shock and the data anxiety—go with a dedicated travel eSIM for your next adventure.