Setup Guide

Set Up Your Reunion eSIM: Quick Install Guide for 2026

July 20269 min readBy Daniel Mercer, Lead eSIM Analyst

1 network tested
5 providers compared
Updated June 2026

Daniel Mercer

Lead eSIM Analyst

43 countries tested280 plans reviewed14 airports tested8 years in telecom

Previously at Analysys Mason covering APAC mobile markets (2016-2021)

How we test

Published July 2026 · Updated June 2026

Compatibility

Which phones work with a Reunion eSIM

iPhone

Supported models: iPhone XR, XS, 11 through 16 Pro Max, and SE (3rd generation). Requires iOS 16 or later. iPhones hold up to 8 eSIM profiles with 2 active simultaneously. Check carrier lock: Settings > General > About > Carrier Lock.

Android

Supported: Samsung Galaxy S21 and later (S22-S25, Z Flip/Fold series), Google Pixel 3+, Xiaomi 12T Pro and later. Requires Android 10 or later. eSIM profile limits vary: Samsung holds 5-8 profiles, Pixel supports 8+.

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Full device compatibility list · Check carrier unlock status

Providers

Reunion eSIM providers compared

Nomad (Recommended)

Nomad is the recommended provider for Reunion with a 4.1/5 rating. Best Budget pick. Plans available: 1GB, 3GB, 5GB, 10GB plus unlimited daily options. Installation via QR code delivered by email.

Overall

Install: 4.2/5 · QR Flow: 4/5

Docs: 3.9/5 · Reliability: 4.2/5

Nomad full review

Alternative providers

eSIM providers for Reunion
Provider	Per GB	Rating	Best For
Nomad#1 Pick	from $3.00/GB	4.1/5	Best Budget
Airalo	from $4.50/GB	4.5/5	Best Overall
Saily	from $3.99/GB	4.4/5	Best Privacy
HelloRoam	from around $3.50 per gigabyte	4.4/5	Coverage + Value
Holafly	from $2.99/day	4.3/5	Best Unlimited

Which provider to choose

Budget travel: Nomad offers the lowest per-GB rate
Broadest coverage: Airalo covers 200+ countries on one account
Unlimited data: Holafly removes the data counter entirely
Privacy: Saily bundles NordVPN under the same account

Installation

Adding your Reunion eSIM to your phone

iOS installation (iPhone)

Open Settings > Cellular > Add eSIM
Select "Use QR Code"
Scan the QR code from your Nomad confirmation email
Label the plan (e.g., "Reunion Travel")
Set as cellular data line (not your default for calls)
Do NOT enable data roaming yet
Confirm the plan appears under Settings > Cellular

iOS 18: the "Add eSIM" option appears under Settings > Cellular > Add Cellular Plan. iOS 17 and earlier: Settings > Cellular > Add eSIM.

Android installation (Samsung One UI)

Open Settings > Connections > SIM Manager > Add eSIM
Select "Download SIM" then "Scan QR code"
Scan the QR code from your Nomad confirmation email
Name the profile (e.g., "Reunion Data")
Set as mobile data SIM
Do NOT enable data roaming yet
Verify the plan in SIM manager

Manual installation (if QR fails)

If the QR code does not scan, use manual entry:

Go to Settings > Cellular > Add eSIM
Select "Enter Details Manually"
Enter the SM-DP+ address from your provider email
Enter the activation code
Complete the setup as with the QR method

Use manual entry when: camera cannot read the QR code, the email was forwarded without the image, or you are installing on a second device.

Configuration

APN setup for Reunion eSIM

Automatic APN configuration

Most eSIM profiles auto-configure APN settings for Orange RE's network. After installation, verify the APN is set correctly:

iPhone: Settings > Cellular > Cellular Data Options > Cellular Data Network
Android: Settings > Network & Internet > SIMs > (travel eSIM) > Access Point Names

A correctly configured APN shows the carrier name and data type. If the APN field is blank, your phone will attempt to auto-fill on first connection.

Manual APN entry

If auto-configuration fails (rare, typically older Android devices), enter APN settings manually. Check your provider's confirmation email for the exact values. Common fields:

APN configuration fields
Field	Value
APN Name	From provider email
APN	Provider-specific value
Authentication	None (most providers)
APN Protocol	IPv4/IPv6

Provider-specific APN values override Orange RE's carrier defaults. Always use the values from your provider, not generic carrier APNs.

Verification

Confirming your Reunion eSIM setup

Signal and network verification

Check your status bar: the carrier name should show Orange REor a roaming indicator. Signal bars confirm connection strength. Go to Settings > Cellular to verify data usage is counting on the travel eSIM line.

"Orange RE" or roaming icon: Connected and working
"Searching...": Still connecting, wait 2-3 minutes
"No Service": Data roaming is off or wrong SIM line selected

Speed test

Run fast.com or Speedtest.net to verify your connection speed. Expected speeds: 5G (LTE typically 20-80 Mbps, 5G 100-500 Mbps where available). Speeds vary by location: airports and city centers are fastest, rural areas slower.

Verifying data roaming is active

Go to Settings > Cellular > (travel eSIM) > Data Roaming: ON. Test by opening any website in your browser. If it loads, roaming is active. If not, toggle data roaming off and back on, then restart your phone.

Dual-SIM verification

Confirm your home SIM still receives calls and texts. Confirm the travel eSIM handles all data traffic. Test: send yourself a text message to your home number. Then load a webpage. Both should work simultaneously. If data routes through the home SIM instead, switch your cellular data line to the travel eSIM.

Airport Guide

Arriving at Reunion's main airport with your eSIM

Before boarding

Install your Reunion eSIM at home the night before departure. Open Settings on your phone, add the eSIM profile via QR code over your home WiFi, and leave it toggled off. The plan clock does not start until Orange RE's network registers the profile after you land. Airport WiFi at Reunion's main airport is unreliable for eSIM installation — boarding-gate networks often block the download entirely.

During the flight

Airplane mode stays on until you land. Use the flight time to verify your eSIM configuration: the Reunion profile should be your active data line, and data roaming for that line should be ready to toggle on after touchdown.

After landing

Disable airplane mode after landing. Toggle the Reunion eSIM on and enable data roaming for that line. Orange RE's 5G/LTE network picks up your profile in 60-90 seconds. Verify by loading any webpage. SIM counter availability at Reunion's main airport varies by terminal and time of day. Your eSIM eliminates that variable entirely.

Leaving the airport

Navigate the airport with live data. Check transit schedules, verify your hotel booking confirmation, and message your host — all before you exit the terminal. Orange RE's 5G/LTE signal covers the airport grounds. Reunion's emergency number is 15/17/18/112 — it works without data, but having your eSIM active means you can also share GPS coordinates with emergency services.

Device Setup

Device-specific instructions for Reunion

iPhone (iOS 17+)

Open Settings > Cellular > Add eSIM > Use QR Code.
Point the camera at the QR code from your provider's email. The profile downloads in 5-15 seconds on stable WiFi.
Tap "Add Cellular Plan" when prompted. Label the plan "Reunion Data" to distinguish it from your home line.
Go to Settings > Cellular > Cellular Data and select the Reunion eSIM as your active data line.
Turn on Data Roaming for the Reunion line only: Settings > Cellular > [Reunion Data] > Data Roaming > On.
After landing at Reunion's main airport, toggle the eSIM on. Orange RE registers your profile in 60-90 seconds. If data does not connect after 3 minutes, add the APN manually: go to Cellular Data Network and enter APN: "orange". Leave username and password blank.
Verify: open Safari and load any webpage. If the page renders, your Reunion data is active at 5G speeds.

Carrier confirmation: Your status bar should display "Orange RE" or "SFR" with 5G/LTE signal within 60-90 seconds. On iPhone, check Settings > Cellular — the Reunion line shows "Orange RE" under Network. If you see "5G" in the status bar, your phone has connected to Orange RE's 5G band.

Note: If the carrier field shows "No Service" after 2 minutes, go to Settings > Cellular > Network Selection, turn off Automatic, wait 10 seconds, then turn it back on. If Orange RE does not appear in the list, restart your iPhone (hold Side + Volume Down for 3 seconds, slide to power off, wait 30 seconds, power on).

Samsung Galaxy (One UI 6+)

Open Settings > Connections > SIM Manager > Add eSIM.
Select "Scan QR Code" and frame the QR code from your provider's email. The download completes in 5-15 seconds.
Tap "Add" when the carrier profile loads. Label it "Reunion Data" under SIM Manager for clarity.
Set the Reunion eSIM as your mobile data SIM: Settings > Connections > SIM Manager > Mobile Data > select Reunion eSIM.
Enable Data Roaming: Settings > Connections > Mobile Networks > Data Roaming > On (for the travel SIM only).
After landing at Reunion's main airport, enable the eSIM. Orange RE's 5G/LTE network registers within 60-90 seconds. If data does not connect within 3 minutes, enter the APN manually: Settings > Connections > Mobile Networks > Access Point Names > Add. Name: Orange RE, APN: "orange". Save and select it as active.
Verify: open Chrome and load any page. Data flowing confirms your Reunion eSIM is active.

Carrier confirmation: Your status bar should display "Orange RE" or "SFR" with 5G/LTE signal within 60-90 seconds. On Samsung, check Settings > Connections > SIM Manager — the travel SIM shows "Orange RE" as the connected network. A "5G" icon in the status bar confirms Orange RE's 5G connection.

Note: If "No Service" persists after 2 minutes, go to Settings > Connections > Mobile Networks > Network Operators, switch from Automatic to Manual, wait for the scan to complete, then select Orange RE. If the carrier does not appear, restart the device: hold Power + Volume Down until the restart menu appears.

Google Pixel (Android 14+)

Open Settings > Network & Internet > SIMs > Add SIM > Download SIM.
Scan the QR code from your eSIM provider's email. The profile downloads in under 15 seconds.
Confirm the download and label the SIM "Reunion Data" for identification.
Set as mobile data SIM: Settings > Network & Internet > SIMs > Reunion Data > Use for mobile data.
Enable roaming: Settings > Network & Internet > SIMs > Reunion Data > Roaming > On.
After landing at Reunion's main airport, enable the profile. Orange RE connects within 60-90 seconds. If data fails to connect, add the APN: Settings > Network & Internet > SIMs > [Reunion eSIM] > Access Point Names > New APN. Name: Orange RE, APN: "orange". Save and set as default.
Open Chrome and load any page to verify data connectivity on Orange RE's 5G/LTE network.

Carrier confirmation: Your status bar should display "Orange RE" or "SFR" with 5G/LTE signal within 60-90 seconds. On Pixel, check Settings > Network & Internet > SIMs — the travel SIM displays "Orange RE" as the active network.

Note: If the signal does not register within 2 minutes, go to Settings > Network & Internet > SIMs > Reunion Data > Advanced > Choose network, switch to Manual, let the scan run, and select Orange RE. If it fails, reset network settings under Settings > System > Reset options > Reset Mobile, WiFi & Bluetooth.

Carrier Config

Carrier troubleshooting for Reunion

Orange RE

APN: "orange" — enter under Settings > Cellular > Cellular Data Network (iPhone) or Settings > Connections > Mobile Networks > Access Point Names (Samsung). Leave username, password, and proxy fields blank. Save and restart data.

Network selection: Open Settings > Cellular > Network Selection (iPhone) or Settings > Connections > Mobile Networks > Network Operators (Samsung). Turn off Automatic. Wait 10-30 seconds for the carrier list to populate. Select "Orange RE" from the list. The phone locks onto Orange RE's 5G/LTE band and data resumes within 30 seconds.

Expected speed: Fastest 5G/LTE speeds in Reunion's urban areas

Common issue: Orange RE's network occasionally delays eSIM profile registration during peak hours at major airports. If your phone shows "Searching..." for more than 2 minutes, turn off Automatic network selection, wait 10 seconds, then select Orange RE manually from the operator list.

Resolution: Restart your phone after adjusting network settings. Orange RE typically completes registration within 60-90 seconds of a fresh boot. If the issue persists, remove and re-add the eSIM profile using the manual activation code from your provider's confirmation email.

SFR

APN: "sl2sfr" — enter under Settings > Cellular > Cellular Data Network (iPhone) or Settings > Connections > Mobile Networks > Access Point Names (Samsung). Leave username, password, and proxy fields blank. Save and restart data.

Network selection: Open Settings > Cellular > Network Selection (iPhone) or Settings > Connections > Mobile Networks > Network Operators (Samsung). Turn off Automatic. Wait 10-30 seconds for the carrier list to populate. Select "SFR" from the list. The phone locks onto SFR's 5G/LTE band and data resumes within 30 seconds.

Expected speed: Reliable 5G/LTE coverage across Reunion's main cities

Common issue: Some eSIM plans routed through SFR require data roaming to be enabled on the travel SIM line specifically. Leaving it off is the most common reason travelers report zero signal after landing in Reunion. Check under Settings > Cellular > [Travel eSIM] > Data Roaming.

Resolution: Toggle airplane mode on for 15 seconds, then off. This forces a fresh network scan without a full restart. SFR should appear in your carrier field within 60 seconds. If it does not, use manual network selection to find and choose SFR directly.

Free

APN: "free" — enter under Settings > Cellular > Cellular Data Network (iPhone) or Settings > Connections > Mobile Networks > Access Point Names (Samsung). Leave username, password, and proxy fields blank. Save and restart data.

Network selection: Open Settings > Cellular > Network Selection (iPhone) or Settings > Connections > Mobile Networks > Network Operators (Samsung). Turn off Automatic. Wait 10-30 seconds for the carrier list to populate. Select "Free" from the list. The phone locks onto Free's 5G/LTE band and data resumes within 30 seconds.

Expected speed: Reliable 5G/LTE coverage across Reunion's main cities

Common issue: Free may show a signal bar but no data if the APN was not auto-configured. This happens on roughly 10-15% of Reunion eSIM activations. Enter APN "free" manually under Cellular Data Network settings.

Resolution: Reset network settings: Settings > General > Transfer or Reset > Reset Network Settings (iPhone) or Settings > General Management > Reset > Reset Network Settings (Samsung). This clears saved WiFi passwords but resolves most Free registration failures. Re-enable the Reunion eSIM after the reset completes.

Dual SIM

Set up dual SIM before landing in Reunion

Data line setup

Configure the Reunion eSIM as primary data: Settings > Cellular > Cellular Data. Orange RE provides 5G/LTE coverage across Reunion's main areas. Turn off "Allow Cellular Data Switching" so the phone never reverts to your home carrier for data. That single toggle prevents the most common cause of unexpected roaming bills during travel.

Calls and SMS

Keep your home SIM active for incoming calls and SMS. Your phone number stays reachable, and two-factor authentication codes from banks and services arrive normally via text. Outgoing calls use your home number unless you manually switch to the Reunion line. For voice calls over data — WhatsApp, FaceTime, Telegram — those route through the eSIM's data connection on Orange RE.

Emergency dialing

Dial 15/17/18/112 from your phone at any time — emergency calls bypass SIM restrictions and connect through any available network in Reunion. Having the eSIM active adds the ability to share live location, look up hospital addresses, and contact your embassy through data-based channels.

Battery impact

Expect 10-15% faster battery drain with two active SIM lines. Your phone maintains two radio connections simultaneously. If battery life matters during a long day, disable the home SIM and rely on the Reunion eSIM for everything including WhatsApp and iMessage. Re-enable the home SIM at night for any pending SMS codes. Carry a Type C/E adapter for charging in Reunion.

Hotspot

Using personal hotspot in Reunion on eSIM data

Sharing data via hotspot is straightforward on most Reunion eSIM plans. Enable Personal Hotspot in Settings and connect your laptop or tablet. Orange RE's 5G/LTE network provides 5G/LTE speeds through hotspot, slightly below direct device connection to tethered devices. USB tethering offers the most stable connection and charges your phone simultaneously — a practical choice for hotel work sessions. WiFi tethering suits quick connections at cafes or airports.

Provider restrictions

Some budget eSIM plans block hotspot at the carrier level. If personal hotspot is grayed out in Settings, your plan does not include it. Contact your provider before departure to confirm tethering is supported. Airalo and Saily include hotspot on most plans. Holafly's unlimited plans restrict tethering on some Reunion data packages — check the plan details page before purchase.

Data impact

Data drains faster through hotspot. Desktop browsers load full-resolution images and scripts that mobile browsers skip. Expect 150-200 MB per hour for browsing, 1.5-3 GB per hour for video, and 300-500 MB per hour for video calls. Disable auto-play videos and pause cloud backups on any device connected to your Reunion eSIM hotspot.

Connect to Reunion's 5G network via eSIM

Reunion has limited 5G availability in select areas on Orange RE's network. To use 5G with your eSIM, verify your phone supports 5G (iPhone 12 or later, Samsung Galaxy S21 or later, Pixel 5 or later). Go to Settings > Cellular > Cellular Data Options > Voice & Data > 5G Auto (iPhone) or Settings > Connections > Mobile Networks > Network Mode > 5G/LTE/3G/2G (Samsung). 5G drains battery 10-20% faster than LTE. Switch to LTE if battery life is more important than speed.

WiFi Backup

WiFi and eSIM activation in Reunion

Reunion has moderate WiFi in urban areas; spotty in rural regions. The best approach: install your eSIM at home over your own WiFi before departure. The QR code scan transfers about 500 KB of profile data — it needs a clean connection, not speed. Airport WiFi at Reunion's main airport uses captive portals that can interrupt the eSIM download. Install at home, travel with confidence.

Activating without WiFi

If you cannot scan the QR code, use manual entry. Your eSIM provider's confirmation email contains an SM-DP+ activation address and activation code. On iPhone: Settings > Cellular > Add eSIM > Enter Details Manually. On Samsung: Settings > Connections > SIM Manager > Add eSIM > Enter Activation Code. Enter the SM-DP+ address and code exactly as shown. This method uses your existing data connection (home carrier or WiFi) and does not require a camera.

Multi-Country

Reunion eSIM on a multi-country trip

If Reunion is one stop on an African multi-destination trip, install all country eSIMs before departure. Most phones store 8 or more eSIM profiles. Label each one clearly: "Reunion Data," "France Data," etc. At each border, disable the previous country's eSIM and enable the next one. The switch takes 30 seconds under Settings > Cellular. A single-country Reunion plan on Orange RE's 5G/LTE network delivers better local coverage than a multi-country regional eSIM — starting at $3.67 for 1GB.

Switching eSIM profiles between countries

At the Reunion border, open Settings > Cellular (iPhone) or SIM Manager (Samsung). Disable your previous eSIM. Enable the Reunion profile and set it as the active data line. Turn on data roaming for the Reunion line. Orange RE's 5G/LTE network connects within 60-90 seconds. Do not delete the previous eSIM — you may need it on the return leg.

Fixes

When your Reunion eSIM does not work

"eSIM Not Supported" error

Cause: Your phone is carrier-locked or the model does not support eSIM.

Fix: Contact your home carrier to unlock (24-72 hours). Verify your model supports eSIM at our compatibility list.

"Unable to Activate eSIM" error

Cause: eSIM profile slot is full, or the QR code was already redeemed.

Fix:Delete unused eSIM profiles in Settings > Cellular. iPhones hold 8 profiles (2 active). If the QR shows as used, contact your provider for a replacement code.

Connected but no data

Cause: Data roaming is off on the travel eSIM, or data is routing through the home SIM.

Fix:Settings > Cellular > select travel eSIM > Data Roaming ON. Also verify: Settings > Cellular > Cellular Data > select the travel eSIM as your data line. Restart your phone after making changes.

Provider-specific installation issues

Airalo: QR code in email and in-app. Re-download available in the app under "My eSIMs"
Nomad: QR delivered by email only. Check spam folder. No app required for installation
Holafly: QR code in app and email. Unlimited plans activate on first connection
Saily: QR in app. VPN configuration separate from eSIM setup

Full troubleshooting guide · Transfer eSIM to new phone

Quick Answers

Common setup questions for Reunion

FAQ

Reunion eSIM setup questions

How do I install an eSIM for Reunion on iPhone?

Open Settings > Cellular > Add eSIM > Use QR Code. Scan the code from your provider email. Label the plan "Reunion Travel" and set it as your cellular data line. The process takes about 5 minutes over WiFi.

How do I install an eSIM for Reunion on Android?

Open Settings > Connections > SIM Manager > Add eSIM. Select "Download SIM" then "Scan QR code". Scan the QR code from your provider email. Name the profile "Reunion Data" and set it as your mobile data SIM. Steps vary slightly between Samsung One UI and other Android versions.

What APN settings do I need for Reunion?

Most eSIMs auto-configure APN for Orange RE's network. If auto-config fails, check your provider's confirmation email for manual APN values. Go to Settings > Cellular > Cellular Data Options > Cellular Data Network to verify or enter settings manually.

Can I install the eSIM before my trip to Reunion?

Yes. Install at home over WiFi any time before departure. Do not enable data roaming until you land in Reunion. Plans count from the first network connection, not from installation. Installing early is recommended.

How many eSIM profiles can my phone hold?

iPhone holds up to 8 eSIM profiles with 2 active simultaneously. Android varies by manufacturer: Samsung supports 5-8, Google Pixel supports 8+. Delete unused profiles in Settings > Cellular to make room for new ones.

What if the QR code does not work for Reunion?

Use manual activation: Settings > Cellular > Add eSIM > Enter Details Manually. Find the SM-DP+ address and activation code in your provider email. This method works when the camera cannot read the QR code or when using a forwarded email.

How do I know my eSIM is connected to Orange RE?

Check the status bar for "Orange RE" or a roaming indicator. Run a speed test at fast.com. Expected speeds: 5G speeds. If you see "No Service," enable data roaming on the travel eSIM line.

How to set up eSIM on Samsung for Reunion?