The short answer
The best eSIM for Cayman Islands is the one that fits your trip and your networks. For two weeks of photos, maps and social, NUM picks 5 GB for 30 days at $28.19, as of 3 Nov 2026.
| Plans from | $7.49 on 3 Nov 2026 |
|---|---|
| Networks on local plans | FLOW 4G |
| A week | 3 GB, 30 days, $15.99 (regional plan, 25 countries) |
| Two weeks | 5 GB, 30 days, $28.19 (regional plan, 25 countries) |
| A month | 10 GB, 30 days, $46.89 (regional plan, 25 countries) |
| Phone number | None, data only |
| Payment | Apple Pay, Google Pay or card |
A regional plan may list fewer networks here than a local plan. If you need a particular network, check that plan’s network list in the shop before you pay.
Coverage in Cayman Islands: what to know
A SIM guide rates Flow coverage as excellent and Digicel as strong across Grand Cayman, Cayman Brac and Little Cayman, both on 4G LTE with no 5G yet.
Checked 3 Nov 2026. Based on travel guides, not a network test. Coverage changes, so check your route before you rely on it.
Which Cayman Islands eSIM for your trip
- A week$15.993 GB · 30 days
- Two weeks$28.195 GB · 30 days
- A month$46.8910 GB · 30 days
The shop’s pick for each trip length on 3 Nov 2026, for photos, maps and social. Prices in US dollars; the shop always shows today’s price.
Cayman Islands data plans, cheapest first
| Data | Valid for | Network | Price |
|---|---|---|---|
| 1 GB | 7 days | FLOW 4G | $7.89 |
| 3 GB | 15 days | FLOW 4G | $17.69 |
| 3 GB | 30 days | FLOW 4G | $18.79 |
| 5 GB | 30 days | FLOW 4G | $29.29 |
| 10 GB | 30 days | FLOW 4G | $53.09 |
| 20 GB | 30 days | FLOW 4G | $97.19 |
| 1 GB | 7 days | Regional plan, 25 countries | $7.49 |
| 3 GB | 30 days | Regional plan, 25 countries | $15.99 |
10 plans in the shop on 3 Nov 2026; the 8 cheapest are shown. See every plan and today’s prices.
How it works
- Pick your trip. Tell the shop how long you’re away and how you use your phone; it picks the plan.
- Pay in seconds. Apple Pay, Google Pay or a card. Then open NUM and join free: your install code is waiting in the chat.
- Install at home, switch on when you land. One tap on iPhone or Android, or scan the QR from another screen. Tell us your landing day and we text you the switch-on steps that morning.
Cayman Islands eSIM by city
Cayman Islands coverage, place by place
| Seven Mile Beach | Travelers report phones working at the south end near George Town and at Turtle Reef on the north end. |
|---|---|
| George Town | A traveler reported a US carrier phone working well in George Town, and a guide lists the public library as a free wifi spot. |
| Cayman Brac | A SIM guide rates both Flow and Digicel coverage as strong across Cayman Brac, on 4G LTE. |
| Little Cayman | A SIM guide rates both Flow and Digicel coverage as strong on Little Cayman, on 4G LTE, though stores there are few. |
From network data, travel guides and traveler reports, checked 3 Nov 2026. Signal changes, so treat these as a guide.
Online as you land in Cayman Islands
Switch it on as the plane lands at any of these and you’re online walking off:
Planning Cayman Islands
Questions people ask
What is the best eSIM for Cayman Islands?
The one that fits your trip and runs on the Cayman Islands’ main networks (FLOW 4G). For a week most people need about 3 GB; for two weeks about 5 GB; for a month of social and video, 10 GB or more. NUM lists 10 plans here and picks one for your trip and how you use your phone.
How much does an eSIM for Cayman Islands cost?
On 3 Nov 2026, plans started at $7.49 and went up to $97.19 for the biggest. The shop always shows today’s price, and the price on the pay button is the price you pay.
Which network works well in Cayman Islands?
A SIM guide rates Flow coverage as excellent and Digicel as strong across Grand Cayman, Cayman Brac and Little Cayman, both on 4G LTE with no 5G yet.
Why does my eSIM show another carrier’s name?
Many travel eSIMs are issued by one carrier and roam on local networks, so your phone can show the issuing carrier’s name while your data runs on a local network. Keep data roaming on for the eSIM.
Will it work on my phone?
Dial *#06# on the phone you’re taking. If you see an EID number, it takes an eSIM. Every iPhone from the XR and XS on does, and the SE from 2020, as do Google Pixel 3 and later and Samsung Galaxy S20 and later. The phone must be carrier-unlocked. Not sure? Text PHONE and your model and we’ll check.
When do I install it?
At home, on wifi, before you fly. Then switch it on when you land. Tell us your landing day and we text you the switch-on steps that morning.
Does it come with a phone number?
No. It’s a data-only eSIM. WhatsApp, LINE, iMessage and FaceTime all work over it, and your home number can stay on for calls and codes.
What if it doesn’t work?
If we can’t issue your eSIM, we refund you in full. If it won’t install or connect, text us and we help you get connected.
An eSIM with a concierge inside.
Text NUM a table for tonight, a driver at 6 am or a pharmacy that’s open now. Any language, any hour, on the data you just bought.
Get my Cayman Islands eSIM