The best eSIM for Guam in 2026.
All 7 Guam plans we sell, ranked by what a GB and a day actually cost — the same prices checkout charges, no editorial favourites.
Our picks by trip type.
Each pick is the cheapest plan whose validity covers the whole trip — the exact quote the plan picker gives at checkout, hotspot included.
Our Guam plans compared.
The full ladder, cheapest first — what a day and a GB actually cost on each plan, so the “best” pick is arithmetic, not opinion.
| Plan | Days | Price | Per day | Per GB | |
|---|---|---|---|---|---|
| 1GB | 7 | £5.07 | £0.73 | £5.07 | Cheapest |
| 3GB | 30 | £14.22 | £0.48 | £4.74 | Longest |
| 5GB | 30 | £21.33 | £0.71 | £4.26 | |
| Unlimited | 7 | £33.52 | £4.79 | — | |
| 10GB | 30 | £42.66 | £1.42 | £4.27 | |
| Unlimited | 15 | £71.11 | £4.74 | — | |
| 20GB | 30 | £79.24 | £2.64 | £3.96 | Best value |
Our read: Our lowest-priced Guam plan is 1GB for 7 days at £5.07. Value pick: 20GB for 30 days at £79.24 — £3.96/GB, the lowest per-GB rate among our Guam plans. Heavy users: unlimited runs £71.11 for 15 days (£4.74/day). Choose a plan →
How we rank: per-day = plan price ÷ validity days; per-GB = price ÷ GB (fixed bundles only). “Best value” is the lowest price per GB — or the lowest day rate where only unlimited plans are sold. Prices are the same ones our checkout charges.
How Guam scores.
Every figure below is computed from the live catalogue — nothing is a reviewer's opinion. Benchmarks use the median (not the average) of every Oceania destination we price, and a day rate is always plan price ÷ validity days.
Best bundle rate £3.96/GB vs the Oceania median of £3.36/GB across the 6 Oceaniadestinations we sell single-country plans for.
Bundles up to 20GB · unlimited up to 15 days. From £5.07.
Connects to Docomo Pacific, GTA, IT&E — the eSIM picks the strongest signal automatically.
Longest validity sold for Guam. Longer trips: stack a second plan — activation is instant.
