Updated October 14, 2026 · NomadCue Editorial Team
4ka vs NTT Docomo
4ka
NTT Docomo
Higher score in this comparison
What sets them apart
| Compare | 4kaReviewSee alternativesSee alternatives | NTT DocomoReviewSee alternativesSee alternatives |
|---|---|---|
| Countries covered | 18 | 200Higher |
| Price from | €5 | Not confirmed |
| Hotspot sharing | Not confirmed | Yes |
| Reference plan prices | Zone 2 travel passes: 500 MB 5 EUR/7 days, 3 GB 10 EUR/30 days (Europe incl. Switzerland, Serbia, Turkey; Greenland, Canada, USA; Egypt, Morocco, Tunisia). UK/Ukraine/Moldova: Zone 1, roaming at home rates under SLOBODA plans. Mexico: Zone 3, no data pack, 0.025 EUR per MB. Japan/Thailand: Zone 3A, no data pack, 3.0750 EUR per MB. EU: unlimited plan gives 11.39 GB in the EU. | Not confirmed |
| Fair use policy | SLOBODA NEKONEČNO for one: unlimited data in Slovakia, of which 11.39 GB in the EU. Shared plan for two to four: 4 GB in Slovakia and the EU; with extra data 18.78 to 33.56 GB in the EU. | Not confirmed |
| Top-ups | Yes | Not confirmed |
Same on both: Unlimited data (Yes), 5G (Yes), Seller type (Carrier).
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Key differences
- NTT Docomo scores higher overall: 9.3 vs 8.9.
- Countries covered is higher at NTT Docomo: 200 vs 18.
- Support channels: only 4ka offers Phone.
- Founded is lower at NTT Docomo: 1992 vs 2015.
- Region: only 4ka offers Regional.
- Region: only NTT Docomo offers Global.
- Features: only 4ka offers Instant activation.
- Features: only NTT Docomo offers Hotspot.
Our verdict on each
4ka
4ka suits Slovak subscribers who want their home plan to roam rather than buying a travel eSIM, and it starts at €5 with coverage across 18 countries. The trade-off is the fair use policy, which caps the EU share of the unlimited data.
NTT Docomo
NTT Docomo pairs a carrier plan with unlimited data and 5G across 200 countries, so you can stay connected on long trips without watching a data cap. It suits travellers who want set-up handled by their own mobile carrier rather than an app-based eSIM seller.
Score breakdown
| Area | 4ka | NTT Docomo |
|---|---|---|
| Cost | 9.0 | Not confirmed |
| Offer | 9.0Regional reach of 18 countries with unlimited data in the feature list unlimited data, 5g and instant activation and a fair use policy. | 9.2HigherCarrier plan from NTT DOCOMO, INC. (Kabushiki-gaisha NTT Docomo) with unlimited data, 5G and hotspot sharing across 200 countries. |
| Trust | 8.3 | 9.7Higher |
How they place
| Ranking | 4ka | NTT Docomo |
|---|---|---|
| Travel SIMs and eSIMs | 291 of 926 | 136 of 926 |
| Travel eSIMs | 298 of 918 | 145 of 918 |
Every fact side by side
| Fact | 4ka | NTT Docomo |
|---|---|---|
| Region | Regional | Global |
| Features | Unlimited data, 5G, Instant activation, Carrier plan | Unlimited data, 5G, Hotspot, Carrier plan |
| Audience | Short trip, Long trip | Short trip, Long trip |
| Legal entity | SWAN, a.s. | NTT DOCOMO, INC. (Kabushiki-gaisha NTT Docomo) |
| Headquarters | Slovakia | Japan |
| Founded | 2015 | 1992Lower |
| Support channels | Phone, Chat, Help centreCovers more | Chat, Help centre |
Where each stands against the rest
| Fact | 4ka | NTT Docomo | Median |
|---|---|---|---|
| Price from | €5above the median | Not confirmed | €4.99 |
| Countries covered | 18lowest quarter | 200highest quarter | 120 |
Median across 492 listed travel providers.
Pros and cons
4ka
Pros
- Unlimited data on home networks, with top-ups available for a longer trip.
- Roaming to 18 countries, the UK, Ukraine and Moldova at SLOBODA home rates.
- Support on phone, chat and help centre from a carrier founded in 2015.
Cons
- Coverage is limited to 18 countries, well short of a global eSIM.
- Mexico, Japan and Thailand bill per MB under their own zone rates.
- Unlimited data comes with a fair use policy that caps the EU share.
NTT Docomo
Pros
- Unlimited data on the roaming plan, with 5G and hotspot sharing available
- Coverage across 200 countries in a global footprint
- Sold by the carrier itself, NTT DOCOMO, INC. (Kabushiki-gaisha NTT Docomo), rather than a marketplace
Cons
- Support runs on chat and help centre only, so there is no phone line for urgent roaming problems
- Coverage of 200 countries sits below the widest plans on the site
- A carrier plan means you buy into NTT DOCOMO, INC. (Kabushiki-gaisha NTT Docomo) rather than a short eSIM you can top up
Who each suits
4ka
Who it suits
- Slovak subscribers on a home plan who want it to keep working abroad
- Travellers on short trips to Europe, Canada and the USA
- People who prefer a carrier desk reachable by phone, chat and help centre
Who should look elsewhere
- Anyone planning a trip outside Europe: Zwitchy covers 200 countries.
- Price-first buyers: eSIMGo.is starts at $0.99 against 4ka's €5.
- Travellers who want a different price point for a single market: SimToIsrael starts at $25.
NTT Docomo
Who it suits
- Travellers crossing many countries on one trip who expect heavy data use
- People already with NTT DOCOMO, INC. (Kabushiki-gaisha NTT Docomo) as their home carrier
- Anyone who prefers 5G, since 5G is part of the plan
Who should look elsewhere
- Travellers who need instant activation on landing, since this is a carrier plan
- People wanting a single-country holiday data pack, where eSIMGo.is may be simpler
- Shoppers who need unlimited data plus a wider country list than 200
Current offers
4ka
Current offer
First period offer
Unlimited plan for two at the price of one: first 30 days
Birthday offer; after the first 30 days the plan automatically stays on SLOBODA NEKONEČNO for one unless another plan is chosen
Source, checked September 26, 2026
Bonus
Port your number to 4ka: 4 EUR start credit plus 1 GB data in the EU for 30 days
Number port-in to 4ka, no contract
Source, checked September 26, 2026
Bonus
Free 3 GB roaming pack for customers in affected Middle East countries: 3 GB free for 30 days
Activated automatically on 3 March 2026 for all prepaid and postpaid customers located in affected countries; Middle East countries temporarily moved from Zone 3 to Zone 2
Source, checked September 26, 2026
Country by country
| Country | 4ka | NTT Docomo |
|---|---|---|
| Japan | No | Yes |
| Slovakia | Yes | No |
Questions about each
4ka
How much does a 4ka roaming pack cost?+
Roaming packs start at €5, and travel passes are priced by data allowance and the number of days you buy. Coverage runs to Europe including Switzerland, Serbia and Turkey, Greenland, Canada and the USA, and Egypt, Morocco and Tunisia. The UK, Ukraine and Moldova roam at home rates under the SLOBODA plans.
Is 4ka data really unlimited?+
Unlimited data is listed for home use in Slovakia, and the fair use policy caps how much of it can be used in the EU. Shared plans carry a smaller allowance at home and across the EU, with extra data sold on top. Read that cap before a long EU trip. The roaming map runs to 18 countries.
NTT Docomo
How much data do I get with NTT Docomo roaming?+
The roaming plan is unlimited, and 5G is part of the service. Hotspot sharing is also available, so you can share the connection with a laptop or tablet. The plan is sold as a carrier plan by NTT DOCOMO, INC. (Kabushiki-gaisha NTT Docomo).
How many countries can I use the service in?+
Coverage runs to 200 countries in a global footprint. That is a wide reach, though it does not match the very largest plans listed on the site, so check your full itinerary before you commit.
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NTT Docomo