Best 1 GB eSIM for the USA: small plans compared
If you only need a little data in the US (maps, messages, email, a few days of travel), a 1 GB eSIM is often enough. We compared the smallest US plans from four eSIM providers using each one's own website, plus Red Pocket as a monthly phone-plan reference. We sell one of these (Zap eSIM), and it isn't the cheapest at 1 GB, so we've kept this list in price order.
1 GB US eSIM plans, cheapest first
| Provider & plan | Price | Validity | Cost per day of validity | Notes |
|---|---|---|---|---|
| RedteaGO, data-only 1 GB | $1.60 | 30 days | $0.05 | Activate within 30 days of purchase; app or website |
| Saily, 1 GB | US$3.99 | 7 days | $0.57 | Set up in the Saily app; 180-day activation period |
| Airalo, 1 GB data-only | $4.00 | 3 days | $1.33 | Starts on first use; website or app |
| Zap eSIM, 1 GB | $0.90 | 7 days | $0.79 | Pay with Bitcoin Lightning; no account needed, no KYC; delivered instantly on your order page |
| RedteaGO, 1 GB with calls & texts | $5.50 | 7 days | $0.79 | Calls and texts available |
| Airalo, 1 GB + 10 min + 10 SMS | $6.00 | 3 days | $2.00 | Includes minutes and texts |
| Red Pocket (for reference) | $10/month | Monthly | n/a | No 1 GB plan; smallest is 3 GB with unlimited talk & text |
Prices checked on October 4, 2026 on each provider's own website: Airalo United States eSIM, RedteaGO United States eSIM, Saily eSIM for the USA, Red Pocket plans. All prices in US dollars as shown on those pages. Prices, taxes and promotions change and can differ by region or currency, so check the provider's site before you buy.
Our picks
- Cheapest 1 GB, and longest validity: RedteaGO's data-only 1 GB plan at $1.60 for 30 days.
- Cheap 1 GB in a polished app: Saily (US$3.99 for 7 days) or Airalo ($4.00 for 3 days).
- Need calls and texts too: RedteaGO's 1 GB calls-and-texts plan ($5.50, 7 days) or Airalo's 1 GB + 10 min + 10 SMS ($6.00, 3 days). For an ongoing phone line with a number, a monthly plan such as Red Pocket's may suit you better.
- Pay with Bitcoin Lightning, no account: Zap eSIM, 1 GB for 7 days at $0.90. You pay a Lightning invoice and the eSIM is delivered instantly on your order page. If you need more later, you can top up the same eSIM.
Is 1 GB enough?
For light use, maps, messaging and email, 1 GB can last several days. Video streaming and video calls use data much faster, so if you plan to stream, a 3 GB plan or bigger is safer. Zap eSIM's next sizes up are 3 GB for 30 days ($8.49) and 5 GB for 30 days ($11.99). For a short, heavy-use trip there's also Unlimited for 7 days ($17.99): the first 2 GB each day at full speed, then up to 1 Mbps (best effort, often lower).
More on how Zap eSIM works: what no-KYC means here · how paying with Bitcoin works · eSIM privacy: who can see what.
Zap eSIM plans: 1 GB for 7 days ($0.90) · 3 GB for 30 days ($8.49) · 5 GB for 30 days ($11.99) · 10 GB for 30 days ($19.99) · Unlimited for 7 days ($17.99), with the first 2 GB each day at full speed, then up to 1 Mbps · compare all plans.
See Zap eSIM plans Top up an existing Zap eSIM
Zap eSIM is not affiliated with, endorsed by, or sponsored by RedteaGO, Saily, Airalo or Red Pocket. Product names are used only to identify the services compared and belong to their owners.
Frequently asked questions
What's the cheapest 1 GB eSIM for the USA?
Of the providers we checked on October 4, 2026, RedteaGO's data-only 1 GB US plan was the cheapest at $1.60, valid for 30 days.
How much is Zap eSIM's 1 GB plan?
$0.90 for 1 GB, valid for 7 days, paid with Bitcoin over the Lightning Network. No account needed and no KYC; your eSIM is delivered instantly on your order page.
Which 1 GB plan lasts the longest?
RedteaGO's data-only 1 GB plan, valid for 30 days. Saily's and Zap eSIM's 1 GB plans are valid for 7 days, and Airalo's for 3 days.
Can I add more data later?
With Zap eSIM, yes: open your saved order link or the Top up page and pay a Lightning invoice (top-ups start at +1 GB for $5.50). RedteaGO and Airalo also list top-ups on their sites.