CompareFairlyBest SIM Only Deals 2026
Our pick : Giffgaff SIM Only (69/100) · Cheapest : Lebara Mobile SIM Only · Best value : iD Mobile SIM Only
In short
This comparison of 12 SIM-only deals across nine criteria, including monthly price, data allowance, contract length, call minutes, text messages, and roaming allowance, places Giffgaff SIM Only first with a score of 69/100, largely due to its perfect scores in 5G availability and contract length, while Vodafone SIM Only ranks second with 58/100, excelling in roaming allowance, and Lebara Mobile SIM Only is identified as the most affordable option. The facts in this summary are computed from the table below; only the wording is generated.
Comparison table
| Criterion | Giffgaff SIM Only | Vodafone SIM Only | iD Mobile SIM Only | Tesco Mobile SIM Only | EE SIM Only | Virgin Mobile SIM Only |
|---|---|---|---|---|---|---|
| Monthly Price (GBP) | 10 | 12 | 8 | 11 | 15 | 10 |
| Data Allowance (GB) | 15 | 20 | 8 | 12 | 25 | 10 |
| Contract Length (mois) | 1 | 30 | 1 | 1 | 12 | 1 |
| Roaming Allowance | Limited | Generous | Limited | Limited | Limited | Limited |
| Network Coverage | Excellent | Excellent | Good | Good | Excellent | Good |
| 5G Availability | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Customer Service Rating | Good | Average | Average | Good | Good | Average |
Frequently asked questions
What are the best SIM only deals available right now in 2026?
The best SIM only deals in 2026 include Giffgaff SIM Only, which ranks highest, followed closely by Vodafone SIM Only, based on our comprehensive comparison of monthly price, data, contract length, and more.
How do I choose the right SIM only plan for my needs?
To choose the right SIM only plan, consider your typical monthly usage for data, calls, and texts, as well as your budget and any international roaming needs. Our comparison criteria can help guide your decision.
Is Giffgaff SIM Only the cheapest option for a SIM only deal?
Giffgaff SIM Only is currently our top-rated option, offering a strong balance across all comparison criteria. For the absolute cheapest monthly price, it's important to compare the specific plans listed on our page.
How is the ranking of SIM only deals determined on this page?
Our ranking is based on a neutral, data-driven methodology, assessing each SIM only deal against key criteria like monthly price, data allowance, and contract length. Our position is not influenced by any paid placements.
Methodology and transparency
Ranking: options are sorted on measured, sourced criteria. No position is ever sold, and no advertiser pays to appear here.
Scope: this comparison is not exhaustive. It presents the options our sources document, not every offer on the market.
Earnings: some outbound links may be affiliate links that earn us a commission. This never affects the ranking, the scores or the data.
Data: every value is linked to its source and refreshed automatically; the collection date is shown.