Cheapest eSIM for Tonga
24 plans from 3 providers, watched and re-ranked by the real price per gigabyte.
We may earn a commission if you buy through a link here. It never changes the order: rows are sorted by real price per GB. How we make money
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| Rank | Provider | Data | Validity | Price (USD) | Price per GB | Verdict | Get |
|---|---|---|---|---|---|---|---|
| 1 | MobiMatter Coupon: ESIMWATCHDOG |
25 GB | 90 Days | $69.99 | $2.80 | Best value | Get |
| 2 | AlpineSIM | 20 GB | 30 Days | $57.00 | $2.85 | Best value | Get |
| 3 | MegaEsim Coupon: SUMMER10 |
10 GB | 30 Days | $31.99 | $3.20 | Great | Get |
| 4 | MegaEsim Coupon: SUMMER10 |
20 GB | 30 Days | $64.99 | $3.25 | Great | Get |
| 5 | AlpineSIM | 10 GB | 30 Days | $33.00 | $3.30 | Great | Get |
| 6 | MegaEsim Coupon: SUMMER10 |
5 GB | 30 Days | $17.99 | $3.60 | Good | Get |
| 7 | AlpineSIM | 5 GB | 30 Days | $18.00 | $3.60 | Good | Get |
| 8 | MegaEsim Coupon: SUMMER10 |
3 GB | 15 Days | $10.99 | $3.66 | Good | Get |
| 9 | MegaEsim Coupon: SUMMER10 |
3 GB | 30 Days | $10.99 | $3.66 | Good | Get |
| 10 | AlpineSIM | 3 GB | 15 Days | $11.00 | $3.67 | Good | Get |
| 11 | MegaEsim Coupon: SUMMER10 |
1 GB | 7 Days | $3.99 | $3.99 | Good | Get |
| 12 | AlpineSIM | 1 GB | 7 Days | $4.00 | $4.00 | Good | Get |
| 13 | AlpineSIM | 3 GB | 30 Days | $12.00 | $4.00 | Good | Get |
| 14 | MobiMatter Coupon: ESIMWATCHDOG |
10 GB | 30 Days | $39.99 | $4.00 | Good | Get |
| 15 | MobiMatter Coupon: ESIMWATCHDOG |
3 GB | 30 Days | $18.99 | $6.33 | Fair | Get |
| 16 | MobiMatter Coupon: ESIMWATCHDOG |
1 GB | 30 Days | $8.99 | $8.99 | Expensive | Get |
| 17 | AlpineSIM | Unlimited | 1 Day | $5.00 | n/a | No $/GB | Get |
| 18 | AlpineSIM | Unlimited | 3 Days | $13.00 | n/a | No $/GB | Get |
| 19 | AlpineSIM | Unlimited | 5 Days | $21.00 | n/a | No $/GB | Get |
| 20 | AlpineSIM | Unlimited | 7 Days | $29.00 | n/a | No $/GB | Get |
| 21 | AlpineSIM | Unlimited | 10 Days | $40.00 | n/a | No $/GB | Get |
| 22 | AlpineSIM | Unlimited | 15 Days | $51.00 | n/a | No $/GB | Get |
| 23 | AlpineSIM | Unlimited | 20 Days | $65.00 | n/a | No $/GB | Get |
| 24 | AlpineSIM | Unlimited | 30 Days | $94.00 | n/a | No $/GB | Get |
The Watchdog Pick is chosen automatically: the lowest real price per GB of the 24 plans in this view. Providers cannot pay for it, and a commission never changes the ranking. Prices are shown in USD and can change at checkout.
Crossing borders on this trip? Compare multi country Oceania eSIM plans that keep one line working across several destinations.
Cheapest eSIM for Tonga: the numbers
As of 1 September 2026, 23:15 GMT, the cheapest eSIM for Tonga is MobiMatter with 25 GB for 90 Days at $69.99. That is $2.80 per GB, the best rate of the 24 plans we compare from 3 providers. 10 support top ups. That timestamp is the exact moment of our latest price check, and the table above always shows the live order.
How much data do you need in Tonga?
Light use is about 500 MB a day. That covers maps, messages, and some browsing. Normal use with photos, social apps, and short videos runs 1 to 1.5 GB a day. Streaming and hotspot use can eat 2 to 3 GB a day. Here is what each size costs in Tonga right now:
Are unlimited eSIMs for Tonga really unlimited?
Not always. 8 of the 24 plans above are sold as unlimited, and almost all of them carry a daily fair use cap. The sellers here do not publish a daily figure, which usually means the cap only appears in the terms, so read them before you buy. That is fine for messages and maps, slow for video. At $2.80 per GB from MobiMatter, a fixed plan often works out cheaper than unlimited unless you genuinely burn several GB a day. That is why we rank by price per GB and not by the word on the label.
eSIM or a local SIM at the airport in Tonga?
An eSIM is ready before you land. No queue, no shop, no handing over your passport at a counter. Data for Tonga starts at $69.99 on this page, which is hard for airport kiosks to beat. A local SIM still makes sense if you need a local phone number or plan to stay for months. For a normal trip, the eSIM wins on price and effort.
Setting up your Tonga eSIM
Pick the plan, not the brandThe cheapest rate in Tonga today is $2.80 per GB from MobiMatter, against a median of $3.66. The QR code arrives by email within minutes of paying.
Install before you flyScan the QR code on wifi at home. Installation needs a connection, and the one thing you will not have when you land in Tonga is a working connection.
Turn it on when you landEnable the eSIM and turn on data roaming for it, then give it a minute to find the network. Expect 4G.
Know what happens when it runs out10 of the 24 plans here can be topped up, so running out is not the end of the trip. If you would rather over buy than top up, the cheapest plan with at least 5 GB is MegaEsim at $17.99.
Tonga Travel eSIM FAQ
Everything you need to know about using an eSIM in Tonga
What is the cheapest eSIM for Tonga?
Right now the cheapest option ranked by price per GB is MobiMatter with 25 GB for 90 Days at $69.99. That works out to $2.80 per GB. Prices change often, so the table above always shows the current order.
Do Tonga eSIMs support 5G?
The networks our plans use in Tonga currently run on 4G. That is enough for maps, messaging, video calls, and streaming in most cases.
Can I top up my Tonga eSIM if I run out?
Yes. 10 of the 24 plans here support top ups, so you can add data without buying a new eSIM. The rest need a fresh plan once the data ends.
Will I still receive bank SMS and OTP codes?
Yes, if you keep your home SIM active. Travel eSIMs are data only. Your phone can hold both at once, so leave your normal SIM on for SMS and use the eSIM for data. Turn off roaming data on the home SIM to avoid charges.
Do these eSIMs include a phone number or calls?
The plans we compare are data only, so there is no local number. Calls work fine over WhatsApp, FaceTime, or any app that uses data. If you need a real local number, a local SIM is the better tool.
How many GB do I need for a week in Tonga?
Around 3 to 5 GB covers a week of maps, messaging, and normal browsing. Heavy video or hotspot use needs 1 to 2 GB per day. Today the cheapest plan with at least 5 GB is MegaEsim at $17.99.
Travelling further? Compare nearby destinations
AlbaniaFrom$0.77/GB
AlgeriaFrom$0.84/GB
AndorraFrom$0.35/GB
AnguillaFrom$1.80/GB
Antigua and BarbudaFrom$1.80/GB
ArgentinaFrom$1.80/GB
Or see every country on the cheapest eSIM index and track weekly movement on the eSIM Price Index.
How we rank
Prices last checked on 1 September 2026, 23:15 GMT across 24 plans. Every plan is ranked by the true cost per gigabyte, not marketing claims. We do not take money for rankings, and providers cannot pay for a higher position. Read the full method on our how we rank page.
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