Roafly is the lowest-priced option at all three directly comparable 30-day tiers in this comparison. Airalo also names MTEL, while Ubigi and Roamless disclose two local networks and Saily adds built-in privacy and security tools, so there are genuine differences beyond price.
Montenegro eSIM comparison
| Provider | 5GB | 10GB | 20GB | Validity | Network(s) | Hotspot | Key Difference |
|---|---|---|---|---|---|---|---|
| Roafly | $9.90 | $16.00 | $24.00 | 30 days | MTEL | Supported across purchased allowance | Lowest price at all three comparable tiers |
| Airalo | $12.00 | $22.00 | $35.00 | 30 days | MTEL | Supported when device and network allow | Same disclosed local network as Roafly, at higher prices |
| Saily | $12.99 | $21.99 | $35.99 | 30 days | Not publicly named on current destination page | No hotspot restrictions stated | Includes built-in security and privacy features |
| Roamless | $12.95 | $21.95 | $38.95 | 30 days | Mtel, T-Mobile | Unlimited tethering stated | Two networks disclosed |
| Ubigi | N/A | $21.00 | N/A | 30 days | M-Tel, Montenegro | Data sharing allowed | Two local networks listed; 10GB is directly comparable here |
Prices, plan availability, validity, listed local networks and terms were checked on August 8, 2026. Providers may change them; confirm the current sales page and checkout details before buying.
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The price result is unusually clear. Roafly costs less than every listed competitor at 5GB, 10GB and 20GB, while all directly comparable packages have the same 30-day validity.
That does not make every product identical. Network disclosure, hotspot terms and Saily's additional software features create differences that may matter depending on how you plan to use the eSIM.
Best eSIMs for Montenegro: provider-by-provider
Roafly

Roafly has the strongest straightforward price position in this comparison. Its 5GB, 10GB and 20GB packages all undercut the equivalent 30-day plans from Airalo, Saily and Roamless, while its 10GB package is also cheaper than Ubigi's comparable option.
Roafly's Montenegro eSIM lists MTEL as the local network. Hotspot and tethering are supported across the full purchased data allowance, with no separate hotspot quota.
That is useful if you expect to share data with a laptop, tablet or another phone because tethering draws from the same package rather than a smaller separate allowance.
Airalo

Airalo is the cleanest network comparison with Roafly because it also names MTEL for Montenegro.
Its disadvantage here is price. With the same 30-day validity at each comparable tier, Airalo costs more for 5GB, 10GB and 20GB without a different disclosed local network to explain that premium.
Airalo supports personal hotspot use when the device and network permit tethering. On the verified factors compared here, that does not overturn Roafly's lower standard prices.
Saily

Saily also costs more than Roafly at each of the three comparable 30-day tiers, but it has a clearer product difference than Airalo.
Its service includes an ad blocker, web protection and a virtual-location feature. The Montenegro destination information also states that there are no hotspot restrictions or limitations.
Those extras may matter if you specifically want Saily's privacy and security tools. They are included features rather than a separate paid add-on, and Saily's current Montenegro destination page does not publicly name the local operator.
Roamless

Roamless is more expensive than Roafly at the verified 5GB, 10GB and 20GB tiers, but it discloses access to both Mtel and T-Mobile in Montenegro. It also states that hotspot and tethering are unlimited.
That is a substantive difference, but a two-network listing does not prove better coverage, faster speeds or automatic switching to whichever signal is strongest.
Roamless therefore makes more sense to compare on its disclosed network access and tethering terms than on price alone.
Ubigi

Ubigi sits in a slightly different position because its 10GB/30-day package matches the comparison baskets here.
At $21, it costs $5 more than Roafly's 10GB package. Ubigi lists M-Tel and Montenegro and allows data sharing.
As with Roamless, the second listed network is useful information but not evidence of superior coverage. It shows which local networks are listed for the service, not which will perform best at every location.
What do the Montenegro network listings actually tell you?
Roafly and Airalo both name MTEL. Ubigi lists M-Tel plus Montenegro, while Roamless lists Mtel and T-Mobile.
These disclosures help distinguish offers that otherwise look similar, but a network name has limits as evidence. It does not prove speed, priority, nationwide coverage quality or performance at a particular hotel, beach, mountain road or village.
Multiple listed networks also should not be read as a promise that your phone will continuously switch to whichever operator is strongest. The safer conclusion is narrower: Ubigi and Roamless publicly list two Montenegro networks, while Roafly and Airalo disclose MTEL.
If connectivity at specific location is critical, check the relevant local operator's coverage information rather than treating the number of network names as a coverage ranking.
Hotspot and laptop use
Roafly supports tethering across the entire purchased allowance, with no separate hotspot quota. That makes the accounting simple: laptop or tablet use draws from the same 5GB, 10GB or 20GB package.
Saily states that its Montenegro plan has no hotspot restrictions or limitations. Roamless describes tethering as unlimited, Airalo allows hotspot use when the device and network support it, and Ubigi allows data sharing.
These terms are useful when comparing providers, but they do not determine how much data you personally need. A hotspot-friendly plan can still run out quickly if a laptop is handling video calls, cloud sync or large downloads.
Montenegro border roaming: check before you cross
Montenegro is not currently part of the EU's established Roam Like at Home area. On June 4, 2026, the Council of the EU authorized negotiations with Montenegro and the other Western Balkan partners with a view to extending the scheme, so the extension was not yet an existing entitlement at that point.
That distinction matters on itineraries combining Montenegro with EU destinations such as Croatia. Do not assume that an EU mobile plan automatically treats Montenegro as ordinary EU roaming, and do not assume that a Montenegro-only travel eSIM continues working after you leave the country.
The Western Balkans have a separate regional roaming framework for local subscribers, but that does not automatically expand the geographic coverage of a travel eSIM.
For a multi-country trip, check the exact countries included in the plan before purchase. A regional product may make more sense than separate country plans when several border crossings are part of the itinerary, but it should be compared as a different product rather than treated as equivalent to the Montenegro packages above.
For a broader look at local SIM cards, eSIMs and Wi-Fi options, see How to Get Internet in Montenegro: SIM Card, eSIM, WiFi Tips.
FAQ
Is Montenegro included in EU free roaming?
Not under the established EU Roam Like at Home regime as of August 8, 2026. Negotiations toward extending the scheme to Montenegro and other Western Balkan partners were authorized in June 2026, but that did not make the extension immediately effective.
Check your home operator's current Montenegro roaming terms rather than assuming the same rules that apply in EU or EEA countries also apply there.
Will a Montenegro eSIM work in Croatia, Albania or other neighboring countries?
Only if those countries are explicitly included in the plan. A Montenegro country eSIM should not be assumed to cover neighboring destinations.
If your itinerary includes several countries, compare the relevant regional plan separately with the country-specific options.
Do I need to buy an eSIM after arriving in Montenegro?
No. A compatible, unlocked phone can generally have a travel eSIM installed before departure, allowing you to complete setup while you still have reliable internet access.
Follow the provider's activation instructions carefully because some plans begin validity at installation while others begin when the eSIM first connects to a supported network.
Final verdict
Roafly is the strongest fixed-data value among the five providers compared here because it has the lowest owner-verified price at 5GB, 10GB and 20GB while keeping the same 30-day validity.
Saily has a genuine case if its included security tools matter to you, while Ubigi and Roamless disclose two Montenegro networks. For a trip crossing into neighboring countries, check geographic coverage separately rather than assuming a Montenegro eSIM or an EU roaming allowance will continue across the border.
Disclosure: Roafly publishes this guide and is included in the comparison.

