Cayman Islands eSIM for 7 days
$15.99
3 GB, valid 30 days, a regional plan covering 25 countries. Enough for maps, rides, messages and photos for a week.
Choose 7 daysPay, then open NUM: your install code is waiting in your chat, and we email it about five minutes after you pay. If we can’t issue it, you get a full refund.
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 4 Nov 2026.
| Plans from | $7.49 on 4 Nov 2026 |
|---|---|
| Networks on local plans | FLOW 4G |
| 7 days | 3 GB, 30 days, $15.99 (regional plan, 25 countries) |
| 14 days | 5 GB, 30 days, $28.19 (regional plan, 25 countries) |
| 30 days | 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.
How it works
Pick your trip
Choose 7, 14 or 30 days. The shop picks the data for how you use your phone, and shows the networks.
Pay in seconds
Apple Pay, Google Pay or a card. Then open NUM and join free: your install code is waiting in your chat.
Install, then land online
Install at home on wifi with one tap, switch it on as the plane lands, and you’re online walking off. Your home number stays on for calls and codes.
Cayman Islands eSIM for 7, 14 and 30 days
Cayman Islands eSIM for 14 days
$28.19
5 GB, valid 30 days, a regional plan covering 25 countries. Room for social, photos and a few video calls over two weeks.
Choose 14 daysCayman Islands eSIM for 30 days
$46.89
10 GB, valid 30 days, a regional plan covering 25 countries. A month of everyday use, with some streaming and hotspot.
Choose 30 daysNUM’s pick for each trip length on 4 Nov 2026, for photos, maps and social. Prices in US dollars; the price on the pay button is the price you pay.
Cayman Islands data plans and prices
| Data | Valid for | Network | Price | Per GB |
|---|---|---|---|---|
| 1 GB | 7 days | FLOW 4G | $7.89 | $7.89 |
| 3 GB | 15 days | FLOW 4G | $17.69 | $5.90 |
| 3 GB | 30 days | FLOW 4G | $18.79 | $6.26 |
| 5 GB | 30 days | FLOW 4G | $29.29 | $5.86 |
| 10 GB | 30 days | FLOW 4G | $53.09 | $5.31 |
| 20 GB | 30 days | FLOW 4G | $97.19 | $4.86 |
| 1 GB | 7 days | Regional plan, 25 countries | $7.49 | $7.49 |
| 3 GB | 30 days | Regional plan, 25 countries | $15.99 | $5.33 |
10 plans in the shop on 4 Nov 2026; 8 shown, least money first. See every plan and today’s prices.
How much data do you need in Cayman Islands?
| How you use it | 7 days | 14 days | 30 days |
|---|---|---|---|
| Maps and messages | 1.4 GB | 2.8 GB | 6 GB |
| Plus social | 2.8 GB | 5.6 GB | 12 GB |
| Lots of video | 11 GB | 21 GB | 45 GB |
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.
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:
One eSIM for North America
Crossing borders? A regional plan covers this country and its neighbours on one eSIM. Each plan says how many countries it covers.
Nearby destinations
eSIMs for other trips
Questions people ask about a Cayman Islands eSIM
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 4 Nov 2026, plans started at $7.49 and went up to $97.19 for the biggest. NUM’s 7-day pick was 3 GB for $15.99, the 14-day pick 5 GB for $28.19 and the 30-day pick 10 GB for $46.89. The shop always shows today’s price, and the price on the pay button is the price you pay.
How much data do I need for Cayman Islands?
As an estimate: maps and messages use about 0.2 GB a day, adding social feeds about 0.4 GB, and video calls or streaming 1.5 GB or more. So a week of everyday use is about 3 GB, two weeks about 5 GB, and a month 10 GB or more.
Is there an unlimited eSIM for Cayman Islands?
Not on 4 Nov 2026. The plans for Cayman Islands have a set amount of data; you can add more to the same eSIM from your order page if you run low.
Is an eSIM better than roaming in Cayman Islands?
For data, usually yes: a travel eSIM is prepaid, so there is no bill afterwards, and you choose the amount before you go. Your home carrier’s roaming can still be handy for calls and texts; keep your home line on for those and turn its data roaming off.
Should I get a local SIM card in Cayman Islands instead?
A local SIM can give you a local number, but you queue for it after you land and swap out your home SIM. An eSIM installs before you fly, works as the plane lands, and leaves your home SIM in place for calls and bank codes.
Does a Cayman Islands eSIM work everywhere in the country?
It works wherever the Cayman Islands’ networks (FLOW 4G) reach. Cities and main roads are well covered; remote islands, mountains and parks can have weak or no signal, so download offline maps before you go.
Will my Cayman Islands eSIM work in neighbouring countries?
A Cayman Islands plan works in Cayman Islands only. For several countries, a North America regional plan covers them on one eSIM; each plan lists the countries it covers.
When do the days start counting?
Install it at home on wifi; switch the line on when you land. Each plan in the shop says when its validity starts, so check that before you pay if you are installing well ahead.
Can I use it as a hotspot?
Hotspot works on most plans, so one eSIM can get a laptop or a travel partner online too.
Will I be online when I land?
Install the eSIM at home on wifi, then switch the line on as the plane lands at George Town (GCM). You are online walking off the plane, with no SIM counter and no airport wifi.
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