Cheapest plan with 7+ days & 3GB+ (5GB+ from 15 days, 10GB+ from 180 days) from each provider, next to WorldSIM's $37.11. Compare any two in Cayman Islands side by side.

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About WorldSIM

8 of 12 facts confirmed

Still researching: Fair-use limit · Lost device / reinstalling · Payment · ID verification

Founded: 2007
Headquarters: London, United Kingdom
Legal entity: WorldSIM Limited (registered in England, company no. 05880013)
Website: worldsim.com
Refund policy: Unused, unopened items can be returned within 14 days for a full refund minus postage; faulty products are exchanged or refunded after testing confirms the fault. Read the policy ↗
Validity starts: Lifetime validity on the airtime credit itself, as long as you top up at least once within the airtime validity period (30/90/180/365 days depending on the bundle bought) to keep it active.
Top-ups & rollover: Pay-as-you-go: top up airtime credit any time it runs low (via account or short-code), then convert credit into data/call/SMS bundles for any destination — no new eSIM or QR scan needed.
Billing currency: Checkout offers a currency selector (GBP default, plus AUD, CAD, EUR, INR, ZAR, USD) — the price and currency you pick is what is charged.
Support: Live chat · Phone · Email · Help center · 24/7

Facts verified on Sep 7, 2026 from WorldSIM's own site

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#	Data	Duration	Daily cap	Price/GB	Price/day	Price
1	Compare 1GB	7 days	—	$11.48/GB	$1.64/day	$11.48 (8.69 GBP) $11.48 $9.18 $11.48/GB	Get eSIM
2	Compare 1GB	7 days	—	$11.49/GB	$1.64/day	$11.49 (8.69 GBP) $11.49 $9.19 $11.49/GB	Get eSIM
3	Compare Best unlimited Unlimited	1 days	Not stated	—	$15.31/day	$15.31 (11.59 GBP) $15.31 $12.25	Get eSIM
4	Compare Unlimited 🌍 Regional Also valid in: Anguilla, Antigua & Barbuda, Bahamas, Barbados +10 more	1 days	Not stated	—	$15.31/day	$15.31 (11.59 GBP) $15.31 $12.25	Get eSIM
5	Compare Unlimited	1 days	Not stated	—	$15.32/day	$15.32 (11.59 GBP) $15.32 $12.26	Get eSIM
6	Compare Unlimited 🌍 Regional Also valid in: Anguilla, Antigua & Barbuda, Bahamas, Barbados +10 more	1 days	Not stated	—	$15.32/day	$15.32 (11.59 GBP) $15.32 $12.26	Get eSIM
7	Compare 2GB	15 days	—	$9.79/GB	$1.30/day	$19.57 (14.82 GBP) $19.57 $15.66 $9.79/GB	Get eSIM
8	Compare 2GB	15 days	—	$9.80/GB	$1.31/day	$19.59 (14.82 GBP) $19.59 $15.67 $9.80/GB	Get eSIM
9	Compare Best price/day 3GB	30 days	—	$8.54/GB	$0.85/day	$25.63 (19.41 GBP) $25.63 $20.50 $8.54/GB	Get eSIM
10	Compare 3GB	30 days	—	$8.55/GB	$0.86/day	$25.66 (19.41 GBP) $25.66 $20.53 $8.55/GB	Get eSIM
11	Compare Best price 5GB	30 days	—	$7.42/GB	$1.24/day	$37.11 (28.10 GBP) $37.11 $29.69 $7.42/GB	Get eSIM
12	Compare 5GB	30 days	—	$7.43/GB	$1.24/day	$37.15 (28.10 GBP) $37.15 $29.72 $7.43/GB	Get eSIM
13	Compare Unlimited	3 days	Not stated	—	$13.68/day	$41.03 (31.07 GBP) $41.03 $32.82	Get eSIM
14	Compare Unlimited 🌍 Regional Also valid in: Anguilla, Antigua & Barbuda, Bahamas, Barbados +10 more	3 days	Not stated	—	$13.68/day	$41.03 (31.07 GBP) $41.03 $32.82	Get eSIM
15	Compare 10GB	30 days	—	$5.07/GB	$1.69/day	$50.69 (38.38 GBP) $50.69 $40.55 $5.07/GB	Get eSIM
16	Compare 10GB 🌍 Regional Also valid in: Anguilla, Antigua & Barbuda, Bahamas, Barbados +10 more	30 days	—	$5.07/GB	$1.69/day	$50.69 (38.38 GBP) $50.69 $40.55 $5.07/GB	Get eSIM
17	Compare 10GB	30 days	—	$5.07/GB	$1.69/day	$50.74 (38.38 GBP) $50.74 $40.59 $5.07/GB	Get eSIM
18	Compare 10GB 🌍 Regional Also valid in: Anguilla, Antigua & Barbuda, Bahamas, Barbados +10 more	30 days	—	$5.07/GB	$1.69/day	$50.74 (38.38 GBP) $50.74 $40.59 $5.07/GB	Get eSIM
19	Compare Unlimited	5 days	Not stated	—	$12.83/day	$64.13 (48.56 GBP) $64.13 $51.30	Get eSIM
20	Compare Unlimited 🌍 Regional Also valid in: Anguilla, Antigua & Barbuda, Bahamas, Barbados +10 more	5 days	Not stated	—	$12.83/day	$64.13 (48.56 GBP) $64.13 $51.30	Get eSIM
21	Compare Best price/GB 20GB	30 days	—	$4.05/GB	$2.70/day	$81.04 (61.36 GBP) $81.04 $64.83 $4.05/GB	Get eSIM
22	Compare 20GB 🌍 Regional Also valid in: Anguilla, Antigua & Barbuda, Bahamas, Barbados +10 more	30 days	—	$4.05/GB	$2.70/day	$81.04 (61.36 GBP) $81.04 $64.83 $4.05/GB	Get eSIM
23	Compare 20GB	30 days	—	$4.06/GB	$2.70/day	$81.12 (61.36 GBP) $81.12 $64.90 $4.06/GB	Get eSIM
24	Compare 20GB 🌍 Regional Also valid in: Anguilla, Antigua & Barbuda, Bahamas, Barbados +10 more	30 days	—	$4.06/GB	$2.70/day	$81.12 (61.36 GBP) $81.12 $64.90 $4.06/GB	Get eSIM
25	Compare Unlimited	7 days	Not stated	—	$12.08/day	$84.59 (64.05 GBP) $84.59 $67.67	Get eSIM
26	Compare Unlimited 🌍 Regional Also valid in: Anguilla, Antigua & Barbuda, Bahamas, Barbados +10 more	7 days	Not stated	—	$12.08/day	$84.59 (64.05 GBP) $84.59 $67.67	Get eSIM
27	Compare Unlimited	10 days	Not stated	—	$11.37/day	$113.65 (86.05 GBP) $113.65 $90.92	Get eSIM
28	Compare Unlimited 🌍 Regional Also valid in: Anguilla, Antigua & Barbuda, Bahamas, Barbados +10 more	10 days	Not stated	—	$11.37/day	$113.65 (86.05 GBP) $113.65 $90.92	Get eSIM
29	Compare Unlimited	15 days	Not stated	—	$10.66/day	$159.91 (121.08 GBP) $159.91 $127.93	Get eSIM
30	Compare Unlimited 🌍 Regional Also valid in: Anguilla, Antigua & Barbuda, Bahamas, Barbados +10 more	15 days	Not stated	—	$10.66/day	$159.91 (121.08 GBP) $159.91 $127.93	Get eSIM
31	Compare 50GB	30 days	—	$4.25/GB	$7.08/day	$212.34 (160.78 GBP) $212.34 $169.87 $4.25/GB	Get eSIM
32	Compare 50GB 🌍 Regional Also valid in: Anguilla, Antigua & Barbuda, Bahamas, Barbados +10 more	30 days	—	$4.25/GB	$7.08/day	$212.34 (160.78 GBP) $212.34 $169.87 $4.25/GB	Get eSIM
33	Compare 50GB	30 days	—	$4.25/GB	$7.09/day	$212.55 (160.78 GBP) $212.55 $170.04 $4.25/GB	Get eSIM
34	Compare 50GB 🌍 Regional Also valid in: Anguilla, Antigua & Barbuda, Bahamas, Barbados +10 more	30 days	—	$4.25/GB	$7.09/day	$212.55 (160.78 GBP) $212.55 $170.04 $4.25/GB	Get eSIM

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WorldSIM eSIM Plans for Cayman Islands