Updated September 30, 2026 · TariffCue Editorial Team
MobileX vs PremiumSIM
Where MobileX and PremiumSIM differ
| Compare | MobileX ReviewVisitVisit | |
|---|---|---|
| Price from | $3.88 | €6.99 |
| Reference plan prices | Build Your Own from $3.88 per month, custom data, month-to-month; Basic Unlimited 10GB: $14.88 per month, unlimited talk text plus 10GB, month-to-month; Basic Unlimited 30GB: $24.88 per month, unlimited talk text plus 30GB, month-to-month | Allnet Flat 50+10 GB: 19.99 EUR per month, 60 GB, 24 months; No unlimited plan listed; Allnet Flat 2 GB: 6.99 EUR per month, 2 GB, 24 months |
| EU roaming | Paid | Included |
| Markets | US | DE |
| Unlimited plan price | $14.88 | Not confirmed |
| Roaming countries | Not confirmed | 33 |
| Data rollover | Yes | Not confirmed |
| Hotspot sharing | Yes | Not confirmed |
Same on both: Seller type (Mvno), SIM-only (Yes), 5G (Yes), eSIM (Yes), Wi-Fi calling (Yes).
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Key differences
- MobileX scores higher overall: 9.4 vs 9.0.
- Billing: only MobileX offers Prepaid.
- Billing: only PremiumSIM offers Contract.
- Contract length: only PremiumSIM offers 24.
- Markets: only MobileX offers US.
- Markets: only PremiumSIM offers DE.
Our verdict on each
MobileX
MobileX suits US readers who want a prepaid plan with a low entry price and no contract attached, scoring 9.4 overall. Build Your Own starts at $3.88 on 1 month, and that same monthly rate carries into every later period, so nothing has to be unwound at renewal.
PremiumSIM
PremiumSIM suits people in Germany who want a low entry price on a sim only plan, a wide support choice and a fibre option from the same seller. Sim only tariffs start at €6.99, and the fixed line runs on fttc and fttp.
Score breakdown
| Area | MobileX | PremiumSIM |
|---|---|---|
| Cost | 9.5HigherPlans start at $3.88 and the unlimited tier starts at $14.88, so both entry points sit low. | 9.0Entry price of €6.99 sits under the €9.30 site median, with a €49.99 fibre setup fee. |
| Offer | 9.2HigherEverything runs month to month on 1 month, with eSIM, 5G, wifi calling, hotspot sharing and data rollover included. | 9.0Sim only on 1 and 24 terms, with 5G, eSIM, wifi calling and EU roaming in 33 countries. |
Availability and regulation
| Country | MobileX | PremiumSIM |
|---|---|---|
| Headquarters | Not confirmed | Germany |
How they place
| Ranking | MobileX | PremiumSIM |
|---|---|---|
| SIM-only deals | 2 of 416 | 22 of 416 |
| Cheap cell phone plans (MVNOs) | 1 of 137 | 12 of 137 |
| Phone plans with eSIM | 16 of 389 | 33 of 389 |
Every fact side by side
| Fact | MobileX | PremiumSIM |
|---|---|---|
| Billing | Prepaid, Rolling | Contract, Rolling |
| Contract length | 1 | 1, 24Covers more |
| Legal entity | Mobile X Global, Inc. | Drillisch Online GmbH |
| Headquarters | Not confirmed | Germany |
| Support channels | Email, Chat, Phone, Help centre | Email, Chat, Phone, Help centre |
Broadband
| Fact | MobileX | PremiumSIM |
|---|---|---|
| Technology | Not confirmed | Fttc, Fttp |
| Top download speed (Mbps) | Not confirmed | 1,000 |
| Upload speed (Mbps) | Not confirmed | 5.8 to 40 |
| Setup fee | Not confirmed | €49.99 |
| Price after contract | Not confirmed | €44.99 |
| Router | Not confirmed | FRITZ!Box 7510, 7630 or 7690 from 4.99 EUR per month |
| Address checker | Not confirmed | https://www.premiumsim.de/glasfaser |
Where each stands against the rest
| Fact | MobileX | PremiumSIM | Median |
|---|---|---|---|
| Unlimited plan price | $14.88lowest quarter | Not confirmed | $25 |
| Roaming countries | Not confirmed | 33lowest quarter | 100 |
Median across 176 listed providers.
Pros and cons
MobileX
Pros
- Build Your Own starts at $3.88 on a plan where the data allowance is set by the customer
- Plans run 1 month, so there is no long term to serve
- Unlimited talk and text plans start at $14.88
Cons
- European roaming is paid, so travel adds cost rather than arriving with the plan
- The seller type is mvno, so service runs over a host network and local coverage needs checking
- Coverage is listed for US, so anyone who needs service across several countries should look wider
PremiumSIM
Pros
- Sim only plans start at €6.99, below the €9.30 median across listed brands
- Terms run 1 and 24, so a rolling option sits next to a longer commitment
- 5G, eSIM and wifi calling are all available, which is what most listed mobile plans carry
Cons
- The fibre line carries a setup fee of €49.99 and post contract pricing of €44.99
- As an mvno, the provider sets its own tariffs on another carrier's network and stays inside DE
- Uploads of 5.8 to 40 Mbps sit below downloads of 1,000 Mbps, which matters for sending large files
Who each suits
MobileX
Who it suits
- Residents of US who want a prepaid plan with no long contract
- People who want unlimited talk and text from $14.88
- Readers who want an eSIM, rollover data and hotspot sharing on a flexible plan
Who should look elsewhere
- GETESA readers who would rather buy from a network than a mvno
- Lonestar Cell MTN readers who want the network itself rather than a virtual brand
- Travellers who need roaming inside the monthly plan, since European roaming is paid
PremiumSIM
Who it suits
- People in Germany who want a sim only plan on 1 and 24 terms
- Households that want mobile and a fibre line from one seller, with €49.99 to budget for at the start
- Travellers who need EU roaming included in 33 countries
Who should look elsewhere
- Anyone after unlimited data, since no unlimited plan appears among the reference plan prices
- Buyers who want the host network itself, where yesss! sells as a network
- People who need service beyond DE, with Lonestar Cell MTN listed as a network
Current offers
MobileX
Current offer
Bonus
Unlimited 30 50GB data promo: 50GB data
Offer applicable to Unlimited 30 Standard Access single month plan only. Any unused data does not rollover.
Source, checked September 30, 2026
Country by country
| Country | MobileX | PremiumSIM |
|---|---|---|
| United States | Yes | No |
Questions about each
MobileX
What is the cheapest MobileX plan?+
Build Your Own starts at $3.88 and you set the data allowance on it yourself. The published reference prices for the plans are monthly and month to month, so that entry figure is the ongoing figure rather than a promotional rate that changes later. A reader comparing a low headline price with a long contract deal is comparing two different structures here, not two stages of one sale.
Does MobileX use contracts or lock-ins?+
No long term is attached. Billing is prepaid and rolling and plans sit at 1 month, the short contract length that flexible mobile deals tend to use. Nothing ties you in for a year, so a reader who wants to change plan or walk away can do so without serving out a term first.
PremiumSIM
What does the cheapest PremiumSIM mobile plan cost?+
The starting price across the range is €6.99, set on a small allnet plan. A second reference plan adds a much larger data allowance at a higher monthly cost, and no unlimited plan appears among the reference plan prices. Heavy data users would pay for the larger tier from the first bill.
How long is the contract?+
Plan contract months run 1 and 24, so a short rolling arrangement sits alongside a longer commitment. Billing is offered as contract or rolling, which lets you match the term to how long you expect to keep the line. Households that expect to move soon should read the longer term carefully.
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