Updated September 30, 2026 · TariffCue Editorial Team
RED by SFR vs sim.de
What sets them apart
| Compare |  RED by SFR |  sim.de |
|---|---|---|
| Seller type | Network | Mvno |
| Host network | SFR | 1&1 |
| Price from | €1.99Lower | €6.99 |
| Reference plan prices | 1Go: 1.99EUR per month, 1GB, no commitment; 120Go 5G: 12.99EUR per month, 120GB, no commitment; 250Go 5G Voyage: 15.99EUR per month, 250GB, no commitment | 25 GB: 6.99 EUR/month, 25 GB, 1 month; 50 GB: 9.99 EUR/month, 50 GB, 24 months; Unlimited on demand: 19.99 EUR/month, unlimited, 24 months |
| EU roaming | Fair use | Included |
| Roaming countries | 137Higher | 33 |
| Markets | FR | DE |
| Unlimited plan price | Not confirmed | €19.99 |
| Data rollover | No | Not confirmed |
| Hotspot sharing | Yes | Not confirmed |
Same on both: SIM-only (Yes), 5G (Yes), eSIM (Yes).
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Key differences
- RED by SFR scores higher overall: 9.4 vs 8.9.
- Price from is lower at RED by SFR: €1.99 vs €6.99.
- Roaming countries is higher at RED by SFR: 137 vs 33.
- Support channels: only RED by SFR offers Community.
- Support channels: only sim.de offers Email.
- Billing: only sim.de offers Contract.
- Contract length: only sim.de offers 24.
- Markets: only RED by SFR offers FR.
- Markets: only sim.de offers DE.
Our verdict on each
RED by SFR
RED by SFR suits readers in FR who want a sim only plan on 1 month terms with rolling billing and no commitment. Data does not roll over and EU roaming runs on fair use terms, so the low entry price fits light users and short stays rather than heavy data habits.
sim.de
sim.de suits people in Germany who want a cheap sim only line with a monthly option and a fixed contract choice on the same tariff sheet. It runs on the 1&1 network, and its entry price of €6.99 sits well under the market median for entry pricing.
Score breakdown
| Area | RED by SFR | sim.de |
|---|---|---|
| Cost | 9.8HigherEntry price of €1.99 a month sits well under the site median of €9.30, and it ranks 32 of 258 brands on entry price. | 9.1Entry at €6.99 and unlimited at €19.99 both sit under the site medians of €9.30 and €23.19. |
| Offer | 9.1HigherEach plan carries 5G, an eSIM and hotspot sharing, with the larger allowances aimed at streaming, plus roaming in 137 countries. | 9.0Sim only, 5G and Esim are available, with included roaming across 33 countries and terms of 1 and 24. |
| Trust | Not confirmed | 8.4Run by Drillisch Online GmbH since 2014, an mvno on the 1&1 network with support on email, chat and phone. |
Where they rank in our lists
| Ranking | RED by SFR | sim.de |
|---|---|---|
| SIM-only deals | 69 of 416 | 24 of 416 |
| Phone plans with eSIM | 83 of 389 | 35 of 389 |
| Broadband providers | 29 of 124 | 7 of 124 |
| Full fibre providers | 17 of 107 | 6 of 107 |
| Broadband without a long contract | 10 of 46 | 4 of 46 |
A third option
Simbye has roaming countries at 190, against 137 for RED by SFR and 33 for sim.de.
Simbye reviewEvery fact side by side
| Fact | RED by SFR | sim.de |
|---|---|---|
| Billing | Rolling | Contract, RollingCovers more |
| Contract length | 1 | 1, 24Covers more |
| Legal entity | SOCIETE FRANCAISE DU RADIOTELEPHONE - SFR | Drillisch Online GmbH |
| Headquarters | France | Germany |
| Founded | Not confirmed | 2014 |
| Support channels | Chat, Phone, Help centre, Community | Email, Chat, Phone, Help centre |
Broadband
| Fact | RED by SFR | sim.de |
|---|---|---|
| Technology | Fttp, Cable, 5G | Fttc, Fttp |
| Top download speed (Mbps) | 2,000Higher | 1,000 |
| Upload speed (Mbps) | 1,000Higher | 5.8 to 40 |
| Setup fee | €0 to €29Lower | €49.99 |
| Exit fee terms | Termination fee 59 EUR fibre/THD, 29 EUR Box 5G | Not confirmed |
| Router | SFR Box 7, SFR Box 8 option, Box 5G | FRITZ!Box 7510, 7630 or 7690, from 4.99 EUR per month, optional |
| Address checker | https://www.red-by-sfr.fr/offres-internet/eligibilite-fibre-adsl-vdsl/ | https://www.sim.de/glasfaser |
Where each stands against the rest
| Fact | RED by SFR | sim.de | Median |
|---|---|---|---|
| Price from | €1.99lowest quarter | €6.99above the median | €5 |
| Unlimited plan price | Not confirmed | €19.99at the median | €19.99 |
| Roaming countries | 137above the median | 33lowest quarter | 100 |
Median across 176 listed providers.
Pros and cons
RED by SFR
Pros
- Sim only plans, so a new line can be activated on its own without a handset in the same order.
- Billing is rolling on 1 month terms, so a line can end without serving a long fixed period.
- The host network is SFR, and the same provider also sells fixed lines at 2,000 Mbps with routers SFR Box 7, SFR Box 8 option, Box 5G.
Cons
- Data rollover is not offered, so data left at the end of a month expires instead of carrying over.
- EU roaming runs on fair use terms, so frequent travel across Europe is not a flat included allowance.
- Billing is rolling only, while GETESA (prepaid and contract) and Lonestar Cell MTN (contract and prepaid) also list contract billing, so no committed term sits behind a lower monthly figure.
sim.de
Pros
- Entry pricing of €6.99 is below the site median of €9.30
- The Unlimited on demand plan costs €19.99, under the site median unlimited price of €23.19
- Contract terms run 1 and 24, so a plan can sit on a monthly term or a longer one
Cons
- The Unlimited on demand plan is tied to the longer of 1 and 24, so unlimited data is not offered on a monthly term
- Service runs in DE only, so the tariffs are not offered outside that market
- As an mvno, sim.de sells on the 1&1 network rather than owning it, unlike the network operators getesa, yesss! and Lonestar Cell MTN
Who each suits
RED by SFR
Who it suits
- Readers in FR who pay as they go and would rather not serve a fixed minimum term
- People who want 5G, an eSIM and hotspot sharing on one bill without a handset
- Households after mobile and fixed lines from one provider, with fibre at 2,000 Mbps and a choice of SFR Box 7, SFR Box 8 option, Box 5G
Who should look elsewhere
- Readers who want a contract term, since GETESA (prepaid and contract) and Lonestar Cell MTN (contract and prepaid) both list contract billing while this brand bills rolling
- Readers whose address has weak reception on SFR, since yesss! runs on A1 instead
sim.de
Who it suits
- People in DE who want a data heavy sim only line without paying for a handset
- Travellers from DE who want roaming included and reach across 33 countries
- Households that want one provider offering both a short monthly term and a longer fixed contract
Who should look elsewhere
- Buyers outside DE, since the service is a single market
- People who want a handset bundled with the tariff, as the plans are sim only
- Buyers who want unlimited data on a rolling monthly basis, since the Unlimited on demand plan sits on the longer of 1 and 24
Country by country
| Country | RED by SFR | sim.de |
|---|---|---|
| France | Yes | No |
Questions about each
RED by SFR
What does the entry plan cost and what comes with it?+
The entry plan is priced at €1.99 a month and runs on 1 month terms with rolling billing, and it carries a small data allowance. Larger plans sit above it, all on no commitment terms, with allowances sized for streaming and heavier use. The price list holds the full ladder to compare.
Do I have to sign a minimum term?+
No commitment is attached to any of the plans, and billing is rolling, so the arrangement can be stopped without serving a long fixed period. That is the main difference from brands such as GETESA, where billing covers prepaid and contract, and Lonestar Cell MTN, which lists contract and prepaid.
sim.de
How much does a sim.de sim only plan cost to start with?+
The cheapest way in is the entry data plan at €6.99 per month, and it can run on a monthly term rather than a long contract. The larger data plan and the Unlimited on demand plan sit on the longer of 1 and 24 instead.
How much is unlimited data on sim.de?+
The Unlimited on demand plan costs €19.99 per month, and it is tied to the longer of the contract options, 1 and 24. That price sits under the site median unlimited price of €23.19, but the commitment is the part to weigh.
Other options to compare
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