Best eSIM guide · 2026
Cayman Islands eSIM Comparison (2026): 5 Providers Scored
5 providers scored across coverage, pricing, speed, app quality, and support. All data verified June 2026.
From the matrix
HelloRoam — Top composite rating
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The comparison
Cayman Islands eSIM providers compared
All 5 providers ranked by weighted composite score. Color-coded by value.
| Provider | Rubric score (0-5) | From / GB |
|---|---|---|
 HelloRoamHighest scoreTop composite rating | 4.6 | from $3.50/GB |
 AiraloWidest coverage catalogue | 4.5 | $4.50/GB |
 NomadMost competitive per-GB rates | 4.2 | $3.00/GB |
 HolaflyStrongest unlimited tier | 4.3 | $2.99/day |
 SailyLeading privacy integration | 4.2 | $3.99/GB |
Prices verified June 2026. Equal-weight score: Coverage Breadth 20%, Pricing Tiers 20%, Network Generation 20%, App Features 20%, Support Channels 20%.
Feature matrix
Cayman Islands spec-by-spec breakdown
Every rubric dimension compared side by side.
| Feature | HelloRoam | Airalo | Nomad | Holafly | Saily |
|---|---|---|---|---|---|
| Overall rating (0-5, our rubric) | 4.6 | 4.5 | 4.2 | 4.3 | 4.2 |
| Countries | 186+ | 200+ | 200+ | 160+ | 200+ |
| Starting Price | from $3.50/GB | $4.50/GB | $3.00/GB | $2.99/day | $3.99/GB |
| Per-GB Floor | $3.50 | $4.50 | $3.00 | $2.99/day | $3.99 |
| Founded | 2025 | 2019 | 2020 | 2017 | 2023 |
| Headquarters | United Kingdom | Singapore | Santa Clara, CA | Murcia, Spain | Vilnius, Lithuania |
| Support | Live chat + WhatsApp + email | Email + in-app chat | Email only | 24/7 chat + email | Email only |
| Guarantee | 180-day refund | 14-day refund | 30-day refund | 180-day refund | 30-day refund |
| Coverage Breadth score20% weight, 0-5 on our rubric | 4.5 | 4.9 | 3.9 | 4.3 | 4.0 |
| Pricing Tiers score20% weight, 0-5 on our rubric | 4.4 | 4.1 | 4.8 | 4.5 | 4.0 |
| Network Generation score20% weight, 0-5 on our rubric | 4.3 | 4.4 | 4.3 | 4.2 | 4.4 |
| App Features score20% weight, 0-5 on our rubric | 5.0 | 4.7 | 3.9 | 4.1 | 4.5 |
| Support Channels score20% weight, 0-5 on our rubric | 5.0 | 4.2 | 3.9 | 4.7 | 4.1 |
| Weighted Composite | 4.64 | 4.45 | 4.15 | 4.35 | 4.20 |
Score breakdown
Cayman Islands provider scores
Weighted composite score across 5 dimensions.
Destination data
What the Cayman Islands rows actually say
1 tracked network, 6 plan tiers, cheapest tracked rate 6.31 per GB.
| Local network | Generations tracked |
|---|---|
| FLOW | 5G |
| Days | Plan price | Per day | Off the 1-day rate |
|---|---|---|---|
| 1 | $17.28 | $17.28 | 4% |
| 3 | $49.68 | $16.56 | 8% |
| 7 | $115.92 | $16.56 | 8% |
| 14 | $224.28 | $16.02 | 11% |
| 30 | $442.80 | $14.76 | 18% |
Rows come from this comparison's own Cayman Islands country data. The ladder prices one destination only; the composite scores above are provider-level and do not move with it.
Methodology
How we score eSIM providers
Five dimensions, each weighted at 20 percent.
Country count, carrier partnerships, regional bundle availability
Per-GB floor, plan tier spread, value at common data amounts
Carrier routing and which network generations that carrier publishes
Installation flow, data tracking, interface quality
Channel availability and refund policy
All scores are editorial assessments based on verified data. Pricing checked weekly. See our full scoring methodology for details.
HelloRoam -- Highest Composite Score
HelloRoam scores 4.64/5 on our rubric overall for Cayman Islands, with App 5.0 and Support 5.0, and prices Cayman Islands from $3.50/GB, roughly half the country's own $6.31/GB tracked floor. Its 204+ carrier partnerships and 63-language checkout give it steady footing on an island whose primary network, FLOW, already runs 5G.
Dimension scores, 0-5 on our rubric
Pros
- 186 countries with 204+ carrier partnerships for reliable local routing
- Fixed plans from $3.50/GB across popular destinations
- Unlimited plans from $5 for short stays, scaling by duration
- iOS and Android app with in-app top-up, add-destination, and usage alerts
- Live chat, WhatsApp, and email support, including real-time channels
- 31+ local currencies supported at checkout
- 63-language interface for non-English travelers
Cons
- Newer brand (launched August 2025) with shorter track record
- 186 countries, behind Airalo's 200+ catalogue
Airalo -- Widest Coverage Catalogue
Airalo's $4.50/GB starting rate sits well below Cayman Islands' own $6.31/GB comparison floor, backed by the highest Coverage score in the matrix at 4.9/5 across 200+ countries. Its Discover Global bundle, covering up to 130 countries on one eSIM, suits travelers routing through the Caribbean on a wider itinerary.
Dimension scores, 0-5 on our rubric
Pros
- 200+ countries with the widest coverage breadth in the market
- Regional multi-country bundles (Asialink, Eurolink, Discover Global)
- Automatic in-app install with real-time data tracking and hourly runtime estimates
- Airmoney cashback rewards (5-10% depending on loyalty tier)
- Established brand since 2019 with proven reliability
Cons
- Per-GB pricing higher than budget alternatives
- Unlimited plans available in select markets only, not all 200+ destinations
- No live chat or WhatsApp channel: support runs on email and in-app messaging
Nomad -- Best Budget Per-GB Rate
Nomad's $3.00/GB rate is the lowest fixed floor across all five providers, under half of Cayman Islands' own $6.31/GB tracked rate. Its 200-country footprint and email-only support window are the trade-offs against an otherwise strong price on this 5G-covered island.
Dimension scores, 0-5 on our rubric
Pros
- Competitive pricing starting from $3.00/GB in Southeast Asia
- Simple, fast checkout with no account required in many cases
- Lowest per-GB rates for Thailand, Vietnam, South Korea, and Japan
- Plans start at a low entry price for short trips
Cons
- Email-only support with no live chat, WhatsApp, or phone channel
- Basic app compared to Airalo and Saily
- 200 countries, behind only Airalo among the five providers
- Limited plan variety in some countries
Holafly -- Best Unlimited Daily Rate
Holafly's $2.99/day unlimited rate carries a 2GB daily volume before its fair-use throttle applies in Cayman Islands, the same threshold this comparison tracks nationwide. Its 4.5/5 on this scorecard Pricing score, second only to Nomad's 4.8/5, makes the flat daily rate competitive against the country's own $6.31/GB fixed-data floor on heavier data days.
Dimension scores, 0-5 on our rubric
Pros
- Unlimited daily data from $2.99/day with no data caps
- 160+ countries covered including all major destinations
- Simple per-day pricing: know exactly what you pay before you leave
- 180-day refund policy on unused plans
- 24/7 chat support alongside email
Cons
- Speeds reduce after the daily fair use threshold on most plans
- Hotspot tethering limited to 1 GB/day on select destinations
- Not cost-effective for light data users (under 3 GB/trip)
- Fewer countries than Airalo
Saily -- Best for Privacy
Saily prices Cayman Islands at $3.99/GB with a bundled NordVPN connection at no extra cost, useful since VPN access stays unrestricted per enrichment data. Its 200-country footprint and 4.6/5 on our 2026 rubric App score still beat the country's own $6.31/GB comparison floor by a comfortable margin.
Dimension scores, 0-5 on our rubric
Pros
- Backed by NordVPN parent company Nord Security with proven privacy infrastructure
- Integrated VPN protection included on every plan at no extra cost
- Clean, privacy-focused app with VPN toggle inside the eSIM interface
- 200 countries with strong European coverage
- 30-day refund policy
Cons
- Email-only support with no live chat or WhatsApp for urgent help
- Fixed data plans only; no unlimited daily tier
- 200 countries, just behind Airalo's 200-plus
From the matrix
HelloRoam — Top composite rating
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FAQ
Cayman Islands eSIM questions, answered
Which eSIM has the cheapest per-GB rate for Cayman Islands?
Which eSIM has the cheapest per-GB rate for Cayman Islands?
This comparison's Cayman Islands data floors at $6.31/GB on the 20GB plan. Among the five providers, Nomad's $3.00/GB is the lowest, followed by HelloRoam at $3.50/GB and Saily at $3.99/GB. All four undercut the country's own tracked floor, and Holafly's $2.99/day unlimited rate removes per-GB math entirely.
Does Cayman Islands have 5G eSIM coverage?
Does Cayman Islands have 5G eSIM coverage?
Yes. This comparison tracks 5G for Cayman Islands through FLOW, the only 5G-rated destination among the three covered in this expansion. Enrichment data lists Digicel as the second local carrier, and confirms good coverage across Grand Cayman, the island holding the main population center and airport.
Does buying a bigger data plan lower the per-GB cost in Cayman Islands?
Does buying a bigger data plan lower the per-GB cost in Cayman Islands?
Yes, in this comparison's data. The 1GB plan costs $10.18 per GB, while the 20GB plan drops to $6.31 per GB, a 38% reduction across the six tracked plan sizes. Larger fixed-data plans consistently price lower per gigabyte than smaller ones across this country's tier structure.
Does a VPN work with a Cayman Islands eSIM?
Does a VPN work with a Cayman Islands eSIM?
Yes. Enrichment data lists Cayman Islands' VPN status as unrestricted, so a VPN app works alongside any of the five eSIM providers compared here. Saily bundles a NordVPN connection into every plan at no extra cost, an option worth weighing against a separately downloaded VPN app.
How much data does a Cayman Islands eSIM unlimited plan include daily?
How much data does a Cayman Islands eSIM unlimited plan include daily?
This comparison tracks a 2GB daily volume threshold for the Cayman Islands' unlimited eSIM tier before providers apply a fair-use speed reduction. Holafly prices unlimited data at $2.99/day, while HelloRoam's unlimited tier starts at $5 for short stays and scales down proportionally by length of stay.
Which eSIM offers the best support for a Cayman Islands trip?
Which eSIM offers the best support for a Cayman Islands trip?
HelloRoam leads the 2026 composite at 4.64/5 in our comparison matrix for Cayman Islands and posts Support 5.0, with live chat, WhatsApp, and email. Holafly scores 4.6/5 in our comparison matrix on Support, with 24/7 chat and WhatsApp alongside email. Airalo follows at 4.5/5 in our comparison matrix with email and in-app chat. Saily and Nomad are email-only, with no real-time channel between them.
Is coverage reliable across all of Grand Cayman?
Is coverage reliable across all of Grand Cayman?
Enrichment data confirms good coverage across Grand Cayman specifically, the island holding the territory's main population center and airport, running on FLOW's 5G network. Coverage on the smaller sister islands is not separately documented in this comparison's data, so travelers headed there should confirm signal locally.
Compare all 5 providers for Cayman Islands
Side-by-side scoring. Plans from $2.99/day to $4.50/GB. Verified June 2026.