eSIM Providers for Reunion (2026) — 5 Compared

We score each provider on five weighted dimensions for Reunion: Pricing Tiers (20%) — per-GB cost and plan range; Coverage Breadth (20%) — carrier routing quality and 5G network reach via Orange; Network Generation (20%) — which technologies the local network carries; App Features (20%) — installation flow and eSIM management; Support Channels (20%) — which channels exist and how long the refund window runs. HelloRoam, Airalo, Holafly, Saily, and Nomad are scored independently for each destination. The same provider can rank differently for Reunion versus other countries depending on local carrier partnerships and pricing.

Airalo leads on coverage breadth for Reunion with a 4.9/5 on the rubric coverage score and 200+ country network footprint. Coverage routes through Orange. For Reunion specifically, all five providers access the same 5G infrastructure, so urban coverage is comparable between them. Airalo's coverage advantage matters most for multi-country itineraries extending beyond Reunion — Holafly, Saily, and Nomad score equally for single-country trips.

The comparison matrix evaluates five dimensions: (1) Pricing — entry price, per-GB rate at each tier, and whether unlimited daily is available for Reunion; (2) Coverage — which local carriers each provider routes through and 5G network quality; (3) Network — which generations the local carriers run, and where each is available; (4) App quality — eSIM installation flow and APN auto-configuration; (5) Refund policy — Holafly offers 180 days, Saily and Nomad 30 days, Airalo 14 days. All five scores combine into the overall ranking for Reunion.

Reunion travelers average 1-2GB daily on cellular data. WiFi availability is moderate, which offsets some consumption. A practical sizing guide: multiply your daily usage by 7 (average trip length) and add 20% buffer. Under 1GB/day: choose a 3-5GB fixed plan. Over 2GB/day: a 10GB or 20GB plan from any provider covers it. Over 5GB/day: Holafly unlimited at $3.23/day is more cost-effective than stacking fixed plans.

Unlimited data in Reunion costs $3.23/day through Holafly — $22.61 for a 7-day trip. A 5GB fixed plan costs $11.32. The breakeven point: if you use more than 7GB during your Reunion trip, unlimited becomes cheaper per-GB. Remote workers streaming video or on daily video calls easily exceed 5GB per day, making unlimited the clear value play. Casual travelers using maps and messaging rarely need unlimited.

Install your Reunion eSIM 24-48 hours before departure while you have stable WiFi. Do not enable data roaming until you land. Most providers start the plan validity clock at first data use, not at installation. Airalo and Holafly both confirm this policy for Reunion. Saily and Nomad start validity on first connection. Install early to troubleshoot any QR scanning issues while you still have home internet. Enable data roaming in Reunion only after landing and clearing customs.

Set your travel eSIM as the data line and keep your home SIM for calls and texts. On iPhone: Settings > Cellular > select the Reunion eSIM line > Turn On This Line > set as Cellular Data. On Android: Settings > Network > SIM Manager > set eSIM as mobile data. Disable Data Roaming on your home SIM to prevent charges. Enable Data Roaming on the Reunion eSIM only. All five providers — HelloRoam, Airalo, Holafly, Saily, Nomad — work in dual SIM mode.

Reunion eSIM speeds match local 5G infrastructure. Provider choice does not affect speed — all five access the same towers. HelloRoam, Airalo, Holafly, Saily, and Nomad differ on pricing and features, not on the network within Reunion. 5G handles video calls and HD streaming where the signal is strong. Network generation carries 20% weight in our comparison matrix because it sets what a plan can do.

All five providers deliver nearly identical speeds in Reunion — standard 5G service — because they route through the same Orange infrastructure. eSIM providers do not own towers; they lease capacity from Reunion's carriers. Speed differences between HelloRoam, Airalo, Holafly, Saily, and Nomad are negligible under normal conditions. Peak-hour congestion in Reunion cities affects all providers equally. Our Network dimension (20% weight) scores them within 0.2 points of each other for most destinations.

For Reunion, the five providers split into clear use cases. Airalo scores highest for multi-country itineraries — 200+ destinations on a single account. Holafly scores highest on unlimited daily data if you stream or work remotely. Saily scores highest on privacy with built-in VPN protection (NordVPN infrastructure) at no extra cost. Nomad has the lowest per-GB price if cost is the deciding factor, starting from $3.67 for 1GB. Fixed data plans suit trips under 14 days; unlimited daily makes sense when you burn 5+ GB per day.

Reunion plans span $3.67 for 1GB to $18.43 for 10GB on fixed data, plus $3.23/day for unlimited. The lowest per-GB rate across all five providers is $1.83. For a 7-day trip using 3-5GB, expect to spend $5-$15 on a fixed plan. For 14+ days with heavy usage, Holafly's unlimited plan ($45.22 for two weeks) competes with buying two separate fixed plans.

Most travel eSIMs support hotspot tethering in Reunion. Airalo allows hotspot on all plans. Holafly allows it but some unlimited plans may have fair-use tethering policies. Saily and Nomad support hotspot with no documented restrictions. Expect 3-5x faster data consumption when hotspotting — a connected laptop syncs email, updates apps, and loads full desktop sites. A 5GB plan lasts roughly 2-3 days with active hotspot use in Reunion. Battery drain increases 30-40%.

Refund policies differ across the five providers for Reunion plans. Holafly offers the most generous policy: 180 days to request a refund on unused plans. Saily and Nomad both offer 30-day refund windows for unused eSIM profiles. Airalo provides a 14-day refund period. All five require the plan to be unused — no data consumed — to qualify. If you have already activated and used data in Reunion, refunds are at provider discretion.

eSIM transfer between devices depends on the provider, not the country. Airalo supports re-downloading an unactivated eSIM profile on a new device. Holafly, Saily, and Nomad generally allow one installation per purchase — contact support before activating on the new device. Apple's eSIM Transfer feature (iPhone-to-iPhone via cable or iCloud) does not apply to third-party travel eSIMs. Always install your Reunion eSIM before factory-resetting or trading in your phone.