Unlimited eSIM is one of the most over-promised travel eSIM products. Most “unlimited” eSIMs are sold with beautiful marketing promises, but in reality have data speed limitations, weak networks, no hotspot to share with your laptop, or other catches that providers hide in the fine print. So before you buy unlimited instead of a standard fixed-data eSIM, you should know what you are actually getting.
This guide covers all of that for an unlimited eSIM, with real numbers. Ohayu now runs 292 Unlimited plans for 82 countries, so we will use it to show what transparent unlimited looks like – and how it stacks up against the other big names.
What “unlimited” really means for eSIM
Almost every unlimited travel eSIM works the same way under the hood. You get a set amount of high-speed data each day. Once you pass it, your speed drops for the rest of that 24-hour window, then resets to full speed the next day. This is called a daily cap, and it’s the number one provider’s catch. Technically, you are never fully cut off, but your internet is not at full speed anymore.
The honest way to read an “unlimited” plan is to ignore the word on the box and look at three things:
- Daily high-speed allowance (usually, it’s 2-3 GB).
- The speed you drop to after you use the allowed gigabytes (from 256 kbps to 1 Mbps).
- Whether hotspot or tethering is allowed, and whether it has its own separate cap (it shows if you can share internet with other people or devices).
On the Ohayu Unlimited plan, the math is simple, and you know it upfront: 3 GB of full-speed data per day, then roughly 1 Mbps until the next daily reset, with hotspot included (no limitations or caps).
For the full breakdown of how the cap and reset behave, see how the daily data limit works on Unlimited and what Ohayu Unlimited is.
Where you can use unlimited eSIM
You can use unlimited plans where local networks and your provider support them. Some countries can have specific legal regulations or cellular network capacities, so you need to understand that unlimited eSIMs are not available everywhere in the world and work in fewer countries compared to fixed data plans.
Also, for now, each unlimited eSIM covers a single country and does not follow you across a border, so a multi-country trip means one plan per stop (or a fixed-data Global eSIM plan instead).
Ohayu Unlimited is live in 82 countries. Here is the full list, grouped by region:
Europe (39): Albania, Andorra, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Faroe Islands, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Montenegro, Netherlands, North Macedonia, Norway, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, United Kingdom.
Asia & Middle East (26): Armenia, Azerbaijan, Bahrain, Bangladesh, Cambodia, China, Georgia, Hong Kong, Indonesia, Iraq, Kazakhstan, Kyrgyzstan, Malaysia, Pakistan, Philippines, Qatar, Saudi Arabia, Singapore, South Korea, Sri Lanka, Taiwan, Tajikistan, Thailand, Turkey, Uzbekistan, Vietnam.
Americas (8): Argentina, Brazil, Canada, Chile, Costa Rica, French Guiana, United States, Uruguay.
Africa (6): Algeria, Egypt, Morocco, Niger, Reunion, Tunisia.
Oceania (3): Australia, Fiji, New Zealand.
If your destination is on this list, the Unlimited will show up next to the regular GB plans on the country page. If it is not, a regular country plan or a Global eSIM plan will keep you covered instead.
Unlimited eSIM plan lengths and prices
Ohayu Unlimited comes in four lengths: 5, 10, 15, and 30 days. The prices differ by country and duration, and you always see them on the country page before you buy.
This table shows the cheapest and most expensive unlimited plans in each length tier, so you can see the range.
| Plan length | Plans available | Lowest price | Highest price |
| 5 days | 82 | $14.99 | $43.99 |
| 10 days | 82 | $24.99 | $83.99 |
| 15 days | 79 | $32.99 | $114.99 |
| 30 days | 49 | $43.99 | $70.99 |
A few things are worth reading from this table. Popular destinations sit at the low end. E.g., a 5-day plan in Belgium starts at $14.99, and a full month in Thailand is $43.99. The expensive plans are remote or high-cost markets like Niger and Tajikistan.
As you see, Unlimited eSIM prices are not much higher than fixed data plans, but it only works because the daily cap keeps usage predictable, which is exactly why no provider can sell truly bottomless full-speed data at these prices.
A good way to save and get Unlimited is to pay with Ohayu Credits (you get $3 for referring a friend), use your Pro Membership discount, or other promo codes. Unlimited plans do not auto-renew, so there are no monthly bills or charges; you only pay for the chosen duration.
Speed, and daily reset
The part travelers care about most is what daily life actually feels like. With 3 GB of full-speed data, a normal day is covered: maps and navigation, messaging and email, social media, a short video call, and an HD show, with room to spare. After 3 GB you stay connected at around 1 Mbps, which still handles browsing, messaging, navigation, audio calls, and standard-definition streaming. HD streaming and large downloads are the things that wait until the next day’s reset. The full list of what works at reduced speed is in the daily data limit FAQ.
Hotspot matters more than people expect. Ohayu Unlimited lets you tether a laptop, tablet, or another phone, and shared data simply counts toward the same 3 GB daily allowance – there is no separate, smaller hotspot cap. That is a meaningful difference from some competitors, and the hotspot FAQ walks through the setup on iPhone and Android.
Unlimited eSIM providers comparison
The four big eSIM providers – Ohayu, Airalo, Nomad, and Holafly – have unlimited eSIM plans. The table below compares their daily caps, throttle speeds, and prices (data collected in June 2026; prices and terms can change with time).
| Provider | 5 days price | Full-speed data per day | Speed after the cap | Hotspot | Countries |
| Ohayu | $14.99 | 3 GB | 1 Mbps | Yes, no separate cap | 82 |
| Airalo | $15 | 3 GB | 1 Mbps | Yes, no separate cap | 70 |
| Nomad | $16 | 2 GB | 512 kbps | Counts toward daily allowance | 50 |
| Holafly | $27.90 | 2 GB | 256 kbps | Limited to 500 MB/day | 160 |
A fair reading of that table: Airalo has unlimited terms very close to Ohayu – same 3 GB daily cap, same 1 Mbps after it, and hotspot is allowed. So the difference is the price and coverage. You can check more in our Airalo eSIM review.
Holafly and Nomad are where the gaps open up. Holafly markets ‘unlimited eSIM” hardest but tends to be the least specific about when speeds drop, and it caps hotspot at roughly 500 MB a day on most plans – a real problem if you tether a laptop for work. It also has the highest prices in the group. Our Holafly eSIM review has deep research on that.
Nomad is more transparent than Holafly, but its unlimited plans give a smaller 2 GB daily allowance and throttle to a slower 512 kbps after that, which is noticeably harder to work with than 1 Mbps. More in our Nomad eSIM review.
The pattern across all of them: a higher, clearly stated daily allowance, a usable speed after the cap, and a hotspot without a hidden second limit, is what separates a good unlimited eSIM from a frustrating one.
Is unlimited eSIM the right choice for you?
If you are streaming, navigating, scrolling, and tethering throughout a trip and would rather not track gigabytes, a daily-capped unlimited plan removes that mental load.
A regular country plan with a set GB bundle can be a better deal in two cases. First, if you are a light user who mostly relies on Wi-Fi and only needs data for maps and messages, a small fixed plan is often cheaper. Second, if you regularly burn much more than 3 GB a day, a larger fixed-GB plan that supports top-ups may suit you better (because unlimited plans cannot be extended mid-trip, you will need to wait until the next day). For multi-country trips, a Global eSIM plan covers many countries with one plan instead of one Unlimited plan per border.
How to get started
- Open your destination on the country list or in the Ohayu app.
- If Unlimited is available, it appears next to the regular GB plans – choose your plan length (5,10, 15, 30 days).
- Install the eSIM over Wi-Fi before you travel. You can buy it earlier, before your trip, and activate it within 30 days.
- When you land, activate eSIM. Your plan will run at full daily speed.
If a plan ends and you still need data in the same country, buy a new Unlimited plan, a country plan, or a Global eSIM and activate it on the same device. The refund rules are the same as country plans – you can return an uninstalled eSIM within 30 days, replace it, or contact support@ohayu.com if you feel that something is wrong with the product.
FAQ
On Ohayu, yes, with no separate hotspot cap; shared data counts toward your 3 GB daily allowance. Some providers, including Holafly, cap hotspot at around 500 MB a day, so check this before you buy if you tether often.
No. These are data-only plans. You can keep your primary SIM active for calls and SMS, and use apps like WhatsApp or Telegram for messaging over data.
Not yet on Ohayu Unlimited – the plan length is set when you buy. When it ends, you buy a new plan. A way to extend is on the roadmap.
An Unlimited plan covers one country only. For multi-country trips, buy a plan per country or use a Global eSIM plan.
