Best eSIM for Mongolia: Plans for Ulaanbaatar and Beyond

Roafly’s Mongolia eSIM combines Mobicom access with prepaid data, top-ups and hotspot sharing across your purchased allowance. Its 5 GB and 10 GB plans last 30 days, making them practical choices for a trip that starts in Ulaanbaatar and continues on a countryside tour.

The useful distinction is how you will spend your connected time. Messages, bookings and occasional map searches need a different allowance from nightly photo uploads or laptop work. Across the steppe, preparing for gaps in reception matters alongside choosing the package.

Mongolia eSIM plans compared

The comparison below covers one-off Mongolia plans from five providers. Fixed-data ranges show the smallest and largest country packages; Holafly uses a different model, charging for days of unlimited data.

Prices are in US dollars before discount codes. Airalo’s row covers fixed-data plans; Ubigi’s covers one-off country plans, excluding regional bundles and subscriptions. Holafly’s range covers the selected 3–30-day options, rather than its entire duration menu.

Roafly is not the lowest-priced fixed-data provider in this comparison. At 5 GB for 30 days, Roafly costs US$24.90 and Airalo US$21; at 10 GB for 30 days, the prices are US$39.90 and US$34 respectively.

Which Mongolia eSIM fits your trip?

Roafly

Start with Roafly’s 5 GB plan if your Mongolia itinerary involves messaging your guide, checking accommodation details, browsing and occasional navigation. Its 30-day validity gives a two-week tour room on either side for arrival and departure days. The 10 GB plan provides more room for sharing photos or connecting a second device.

Short visits can use the 1 GB, seven-day plan at US$6.90. Between that and 5 GB, the 3 GB plan costs US$16.90 and lasts 30 days. That longer validity is useful if your usage is light but your journey extends beyond a week.

Roafly works on Mobicom, with 4G where available. You can use hotspot within the full purchased allowance, so sharing a connection with a tablet or laptop does not involve a separate daily tethering quota. Keep large software updates and automatic cloud backups off mobile data to preserve it for the trip.

Installation and usage are separate steps: install while you have reliable internet, then the plan’s validity starts when the eSIM first connects to a supported network in Mongolia. No ID verification is required, and top-ups are available if your plans change.

Match your allowance to the activities you expect to do online when choosing among Roafly’s Mongolia eSIM plans. The service is data-only, so arrange contact with your driver or tour organiser through an internet-based messaging app before departure.

Airalo

Airalo offers more combinations of allowance and validity, including shorter packages for a brief Ulaanbaatar stay. Pay attention to the duration: its 10 GB package is available for seven, 15 or 30 days, with different prices.

The Mongolia product uses Mobicom. Its fixed-data range also reaches 20 GB, which can suit heavier use over a longer stay. Compare the package that covers your whole itinerary rather than selecting the cheapest listing for a particular number of gigabytes.

Nomad

Nomad’s current country range runs from a seven-day starter to 20 GB for 30 days, also on Mobicom. Hotspot and add-on data are supported.

Its activation window deserves attention if you book far ahead. The plan starts on connection to the destination network, but it also starts automatically after 60 days from purchase. Buy within that window rather than ordering months before your Mongolia trip.

Ubigi

Unitel access gives Ubigi a different network option within this comparison. That is relevant if your accommodation or guide recommends Unitel for the specific places where you will stay.

The country plans jump from 3 GB for 15 days to 10 GB for 30 days, without a 5 GB option in the range compared. Ubigi also supports data sharing and reusing its eSIM for subsequent packages. Its higher country-plan price makes the network choice and your existing use of the service more important than the entry price alone.

Holafly

Holafly sells unlimited data by trip duration on Mobicom. Its seven-day option costs US$40.90, while 15 days costs US$64.90.

The main distinction is between phone usage and sharing. Hotspot is limited to 1 GB per day, and the operator’s fair-use policy can temporarily reduce speeds. This can suit substantial phone use during a connected city stay, but it is a different proposition from unrestricted laptop tethering. More data allowance does not extend reception along a remote route.

Mobicom and Unitel beyond Ulaanbaatar

Ulaanbaatar and Mongolia’s provincial and district centres are the natural places to handle bookings, uploads and messages. Mobicom describes its 4G reach across all 21 provinces and 330 soums, the country’s district-level administrative areas. That geographical spread is useful, but a long drive between settlements can still contain stretches without service.

The distinction between population coverage and land coverage matters here. The World Bank’s analysis of Mongolia’s digital infrastructure describes extensive expansion by both Mobicom and Unitel to soum centres alongside continuing rural access gaps. Reaching people in towns is a different task from covering every track, valley and campsite.

On a Gobi itinerary, use connected stops to send your next arrival time and download what you need for the following leg. Save accommodation details and the agreed meeting point locally. Offline navigation remains useful even when your phone cannot load a new search or send your location.

Western Mongolia also resists a simple operator ranking. In a July 2025 Altai Tavan Bogd discussion, one traveller described having Mobicom reception while relatives using Unitel were disconnected for two days. A separate 2024 roaming account favoured Unitel on a different, unnamed steppe route. These accounts concern different journeys and services; neither establishes a winner across the country.

If your trip includes a remote camp or mountain trek, ask the host or guide about reception at those exact stops and agree how to coordinate during offline periods. Changing eSIM brands while staying on the same underlying network is not a reliable way to solve a local coverage gap.

Choosing data for a city stay or countryside tour

Trip length is only part of the calculation. Two weeks with offline maps, messages and occasional browsing can use less data than a few days of video calls and automatic photo uploads.

Use these allowances as planning starting points:

• 1–3 GB: light use, a short stay, or a longer trip where you mainly need messages and occasional online checks.

• 5 GB: a practical starting point for a one- to two-week organised tour, with maps downloaded ahead and large uploads saved for Wi-Fi.

• 10 GB: more room for photo sharing, regular browsing and occasional hotspot use. Frequent video calls or cloud backups can require considerably more.

Download the maps and translation resources you intend to use before leaving Ulaanbaatar. Then use live data for the tasks that need it: contacting your guide, receiving booking changes and checking information at connected stops. Check your phone’s data counter early in the trip so you can adjust uploads or add data before the next long drive.

Local tourist packages are also worth considering if you need a much larger allowance. Mobicom sells its Tourist packages in both physical SIM and eSIM formats, so buying locally does not necessarily mean using a plastic card.

However, local purchase does not automatically solve a need for voice calls. Mobicom’s Tourist SIM conditions state that the package cannot make or receive calls, except calls to its customer service. If hotels or drivers need to reach you through ordinary telephone calls, confirm that capability in the specific local product before buying.

Set up your eSIM before flying to Mongolia

Complete the installation while you still have dependable Wi-Fi. That lets you deal with the setup before you need to contact someone at Chinggis Khaan International Airport.

1. Check the phone. It must support eSIM and be unlocked for use with other carriers. Use Roafly’s compatible-device guide, checking the exact model and regional version.

2. Install your purchased eSIM. Follow the supplied QR-code or manual installation instructions while connected to the internet. Label the line “Roafly Mongolia” so it is easy to identify.

3. Select it for mobile data on arrival. Enable the Roafly line and its data-roaming setting. Keep data roaming off for your home line, and disable automatic mobile-data switching if your phone offers it.

4. Let the destination connection start the plan. Roafly’s Mongolia validity begins when the eSIM first connects to a supported local network.

5. Check the essentials before leaving the airport or hotel. Open a webpage, send your arrival message and save your next meeting point. Keep the installation details accessible offline.

The eSIM setup guide provides the device-specific steps. If you have reception but no usable data, check that the correct line is selected and follow the settings supplied with your purchase.

Mongolia eSIM FAQs

Will an eSIM work in the Gobi Desert?

Expect coverage to vary between settlements, camps and the routes connecting them. Roafly uses Mobicom, but mobile service is not continuous across remote Gobi tracks. Download your route and accommodation information before departure and agree meeting arrangements ahead of offline stretches.

Is Mobicom or Unitel better for travelling outside Ulaanbaatar?

Both are relevant networks for countryside travel. The useful choice depends on your actual stops: Roafly uses Mobicom, while Ubigi’s country plans use Unitel. Advice from the host at a particular camp is more useful than a blanket claim that one operator wins everywhere.

Is 5 GB enough for two weeks in Mongolia?

It is a reasonable starting allowance for messaging, occasional browsing and navigation with maps already downloaded. Photo backups, video and sharing data with a laptop can change that quickly. Roafly’s 5 GB and 10 GB plans both last 30 days, so this choice is mainly about usage.

Can I install my Mongolia eSIM before arriving?

Yes. Install Roafly on a stable internet connection before departure. Its Mongolia plan starts when it first connects to a supported network in the country, rather than simply when you complete installation.

Will I get a Mongolian number for calling my driver?

Roafly’s Mongolia eSIM supplies data without a local phone number. Arrange an internet-based contact method with your driver in advance. If ordinary calls are essential, look for a local plan that explicitly includes them; even Mobicom’s Tourist data package restricts voice calling.

Will the same Mongolia plan work in China or Russia?

Roafly’s Mongolia country package covers Mongolia. Continuing into China or Russia requires another suitable package. If considering a regional product, check that every destination on your itinerary is included before buying.

Roafly’s 5 GB, 30-day plan is a practical starting point for a Mongolia tour built around messaging, bookings and occasional online navigation. Move to 10 GB if you expect more photo sharing or hotspot use, install before departure, and have your offline route ready before the journey leaves the capital.