Setup Guide

How to Install an eSIM for Hong Kong: 2026 Setup Guide

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

Phone requirements for Hong Kong 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. 5G eSIM requires iPhone 12 or newer.

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+. 5G on CMHK requires Samsung S22+ or Pixel 6+.

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Full device compatibility list · Check carrier unlock status

Providers

eSIM providers covering Hong Kong

Nomad (Recommended)

Nomad is the recommended provider for Hong Kong with a 4.1/5 rating. Best Budget pick. Plans available: 1GB, 3GB, 5GB, 10GB, 20GB 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 Hong Kong
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

Installation steps for Hong Kong eSIM

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., "Hong Kong 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., "Hong Kong 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

How to configure APN for Hong Kong

Automatic APN configuration

Most eSIM profiles auto-configure APN settings for CMHK'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 CMHK's carrier defaults. Always use the values from your provider, not generic carrier APNs.

5G and LTE band selection

5G is available in Hong Kong (widespread coverage). To force a network type:

iPhone: Settings > Cellular > Cellular Data Options > Voice & Data > 5G Auto / LTE
Android: Settings > Network > Preferred network type > 5G/LTE/3G Auto

Switch to LTE-only to conserve battery in rural areas without 5G towers. Extensive 5G coverage across the territory including MTR stations

Verification

Testing your connection in Hong Kong

Signal and network verification

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

"CMHK" 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 on CMHK: approximately 180 Mbps download. 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 Hong Kong International (HKG) with your eSIM

Before boarding

Purchase and install your Hong Kong eSIM 24-48 hours before departure. Plans start at $3.99 for 1GB. Scan the QR code on a stable WiFi connection at home. After installation, keep the profile disabled until you are on the ground in Hong Kong. CMHK begins the plan timer on first registration, so toggling it on during a layover burns a day you paid for.

During the flight

While airborne, review your cellular settings. The Hong Kong eSIM should appear as a separate line under Settings. Assign it as data-only. Leave your home number active for incoming texts — two-factor authentication codes from your bank still arrive over SMS.

After landing

Turn off airplane mode as the plane reaches the gate. Your phone searches for CMHK's 5G/LTE network and registers within 30-45 seconds. The carrier name appears in your status bar. Open your browser and load a page to confirm data is flowing. The SIM counter from CMHK and csl is in the arrivals hall — expect a 5-10 min wait and $8-20 for 6-15GB / 7-30 days for a tourist plan. Walk past it.

Leaving the airport

With data active, pull up your hotel address in Maps before you reach the taxi stand. Compare ride-share prices while walking through arrivals. Other passengers are still at the SIM counter while you are in a car. Hong Kong's emergency number is 999 — 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 Hong Kong

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 "Hong Kong Data" to distinguish it from your home line.
Go to Settings > Cellular > Cellular Data and select the Hong Kong eSIM as your active data line.
Turn on Data Roaming for the Hong Kong line only: Settings > Cellular > [Hong Kong Data] > Data Roaming > On.
After landing at Hong Kong International (HKG), toggle the eSIM on. CMHK registers your profile in 60-90 seconds. APN settings auto-configure for most Hong Kong eSIM plans on CMHK's network.
Verify: open Safari and load any webpage. If the page renders, your Hong Kong data is active at 180 Mbps average.

Carrier confirmation: Your status bar should display "CMHK" or "HKT/csl" with 5G/LTE signal within 60-90 seconds. On iPhone, check Settings > Cellular — the Hong Kong line shows "CMHK" under Network. If you see "5G" in the status bar, your phone has connected to CMHK'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 CMHK 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 "Hong Kong Data" under SIM Manager for clarity.
Set the Hong Kong eSIM as your mobile data SIM: Settings > Connections > SIM Manager > Mobile Data > select Hong Kong eSIM.
Enable Data Roaming: Settings > Connections > Mobile Networks > Data Roaming > On (for the travel SIM only).
After landing at Hong Kong International (HKG), enable the eSIM. CMHK's 5G/LTE network registers within 60-90 seconds. APN settings load automatically for most Hong Kong eSIM plans on CMHK's network.
Verify: open Chrome and load any page. Data flowing confirms your Hong Kong eSIM is active.

Carrier confirmation: Your status bar should display "CMHK" or "HKT/csl" with 5G/LTE signal within 60-90 seconds. On Samsung, check Settings > Connections > SIM Manager — the travel SIM shows "CMHK" as the connected network. A "5G" icon in the status bar confirms CMHK'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 CMHK. 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 "Hong Kong Data" for identification.
Set as mobile data SIM: Settings > Network & Internet > SIMs > Hong Kong Data > Use for mobile data.
Enable roaming: Settings > Network & Internet > SIMs > Hong Kong Data > Roaming > On.
After landing at Hong Kong International (HKG), enable the profile. CMHK connects within 60-90 seconds. APN settings self-configure on Pixel devices for most Hong Kong plans.
Open Chrome and load any page to verify data connectivity on CMHK's 5G/LTE network.

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

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

Carrier Config

Carrier troubleshooting for Hong Kong

CMHK

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 "CMHK" from the list. The phone locks onto CMHK's 5G/LTE band and data resumes within 30 seconds.

Expected speed: 162-180 Mbps in urban areas, 54-90 Mbps in rural coverage

Common issue: CMHK may show a signal bar but no data if the APN was not auto-configured. This happens on roughly 10-15% of Hong Kong eSIM activations. Contact your eSIM provider for the correct APN string.

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 CMHK registration failures. Re-enable the Hong Kong eSIM after the reset completes.

HKT/csl

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 "HKT/csl" from the list. The phone locks onto HKT/csl's 5G/LTE band and data resumes within 30 seconds.

Expected speed: 108-153 Mbps in cities, 36-72 Mbps outside metro areas

Common issue: If HKT/csl connects but web pages time out, the phone may have defaulted to your home SIM for data. Go to Settings > Cellular > Cellular Data and confirm the Hong Kong eSIM is selected. The home SIM handles calls only.

Resolution: Contact your eSIM provider's support with the SM-DP+ activation address from your confirmation email. Some HKT/csl profile issues require a new QR code. Airalo responds via in-app chat in under 5 minutes; Holafly offers WhatsApp support at +34 644 44 37 97.

3 Hong Kong

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 "3 Hong Kong" from the list. The phone locks onto 3 Hong Kong's 5G/LTE band and data resumes within 30 seconds.

Expected speed: 108-153 Mbps in cities, 36-72 Mbps outside metro areas

Common issue: 3 Hong Kong'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 3 Hong Kong manually from the operator list.

Resolution: Restart your phone after adjusting network settings. 3 Hong Kong 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.

Dual SIM

Running two SIMs in Hong Kong: data line vs call line

Data line setup

Open Settings > Cellular and tap "Cellular Data." Select the Hong Kong eSIM. All data now routes through CMHK's local network at local rates. Do not enable "Allow Cellular Data Switching" — that setting lets the phone fall back to your home SIM for data, which triggers international roaming fees without warning.

Calls and SMS

The home SIM stays on for calls and verification texts. When someone dials your regular number, it rings normally. Standard SMS charges from your home carrier may apply for receiving texts abroad — check your plan. All internet-based communication routes through CMHK's data network on the Hong Kong eSIM.

Emergency dialing

Emergency services in Hong Kong are reached at 999. Both your home SIM and the travel eSIM can place this call. Data from the eSIM adds GPS location sharing, real-time translation for language barriers, and the ability to look up your embassy's local address and phone number.

Battery impact

Running two SIMs draws 10-15% more battery per day than a single SIM. Both radios maintain separate network connections. If your battery runs low during the day, disable the home SIM temporarily under Settings > Cellular — the Hong Kong eSIM is the priority line for data. Re-enable the home SIM when you reach WiFi at your hotel. Hong Kong uses Type G outlets — carry the right adapter.

Hotspot

Share your Hong Kong eSIM data with other devices

Personal hotspot works with most Hong Kong eSIM plans from major providers. Enable it under your phone's settings. The hotspot shares your CMHK 5G/LTE connection with nearby devices via WiFi, Bluetooth, or USB. WiFi tethering has the widest range (roughly 10 meters) but uses more battery. USB tethering charges your phone while sharing data — ideal for laptop sessions. Expect 108-144 Mbps typical through hotspot on the connected device.

Provider restrictions

Hotspot availability is a plan feature, not a country restriction. Most fixed-data Hong Kong plans support tethering. Unlimited plans are the exception — carriers throttle or block hotspot on unlimited tiers to manage network load on CMHK's infrastructure. If you need hotspot, buy a fixed-data plan with an explicit hotspot label.

Data impact

Tethering multiplies data use. A single Zoom call uses 300-500 MB/hour. Slack with screen sharing adds 200-400 MB/hour. Background cloud sync on a connected laptop can consume 500 MB-1 GB without any visible activity. Before hotspotting in Hong Kong, disable auto-sync and set video calls to audio-only when possible — that drops consumption by 70%.

Registration

Skip Hong Kong's SIM registration with eSIM

Physical SIM registration in Hong Kong: Real-name registration required since 2023. The counter at Hong Kong International (HKG) copies your passport, takes a photo, and submits the registration to CMHK. Processing takes 15 minutes on a good day, longer during peak arrivals. Some countries add a mandatory activation delay of 2-24 hours after registration before the SIM goes live. An eSIM bypasses every step — no identity check, no wait, no activation delay.

Peak Season

Hong Kong peak season: Oct-Dec, Mar-Apr network advisory

Oct-Dec, Mar-Apr is Hong Kong's busiest travel period. Autumn (October-December) has best weather. CMHK's towers in tourist hotspots carry 2-3x the normal load. Expect 72-108 Mbps during peak congestion. Essential apps (maps, messaging, email) work fine. Schedule video calls for early morning or late evening when network traffic is lightest.

Connect to Hong Kong's 5G network via eSIM

CMHK offers widespread 5G coverage across major cities and airports in Hong Kong. Extensive 5G coverage across the territory including MTR stations. Enable 5G on your eSIM: iPhone — Settings > Cellular > Voice & Data > 5G Auto. Samsung — Settings > Connections > Mobile Networks > Network Mode > select 5G. Your phone needs 5G hardware (iPhone 12+, Galaxy S21+, Pixel 5+). Expected speeds on 5G: 180 Mbps in urban areas. "5G Auto" on iPhone conserves battery by falling back to LTE when 5G speed is not needed.

WiFi Backup

Hong Kong WiFi availability for eSIM setup

Hong Kong offers excellent public WiFi (fast and widely available). Free WiFi in MTR stations, malls, and most restaurants. Install your eSIM before leaving home. The download is tiny (under 1 MB) but requires an uninterrupted HTTPS connection to the carrier's provisioning server. Public WiFi with captive portals — including Hong Kong International (HKG)'s network — can block this connection. Home WiFi eliminates the risk.

Activating without WiFi

No WiFi for QR scan? Use manual activation. Check your provider's email for the SM-DP+ address (a URL starting with "smdp+") and the matching activation code. On iPhone: Settings > Cellular > Add eSIM > Enter Details Manually. On Samsung: SIM Manager > Add eSIM > Enter Activation Code. You can use your home carrier's mobile data for this — it transfers less than 1 MB.

Multi-Country

Multi-stop itinerary: Hong Kong eSIM alongside other profiles

For a multi-stop Asian itinerary, install one eSIM per country before departure. Hong Kong's eSIM connects to CMHK's 5G/LTE network directly, avoiding the speed penalty that multi-country roaming eSIMs carry. At the Hong Kong border, disable your previous eSIM and enable the Hong Kong profile. The process: Settings > Cellular, toggle off the old line, toggle on the new one. Done in 30 seconds.

Switching eSIM profiles between countries

Border crossing procedure: disable the previous eSIM, enable Hong Kong. iPhone: Settings > Cellular > tap each line to toggle. Samsung: Settings > Connections > SIM Manager > toggle lines. Confirm Hong Kong is the active data line. Enable data roaming. CMHK's 5G/LTE signal registers in 60-90 seconds. The entire switch takes 30 seconds.

Fixes

Common setup errors and solutions

"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.

Slow speeds on CMHK

Expected: 180 Mbps. If speeds are noticeably lower: toggle airplane mode on and off. Move to a different area. Try forcing LTE if 5G is congested. During Oct-Dec/Mar-Apr speeds may drop in tourist areas.

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 Hong Kong

FAQ

Common setup questions for Hong Kong

How do I install an eSIM for Hong Kong on iPhone?

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

How do I install an eSIM for Hong Kong 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 "Hong Kong 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 Hong Kong?

Most eSIMs auto-configure APN for CMHK'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 Hong Kong?

Yes. Install at home over WiFi any time before departure. Do not enable data roaming until you land in Hong Kong. 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 Hong Kong?

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 CMHK?

Check the status bar for "CMHK" or a roaming indicator. Run a speed test at fast.com. Expected speeds: approximately 180 Mbps. If you see "No Service," enable data roaming on the travel eSIM line.

Does Hong Kong support 5G eSIM?

5G coverage in Hong Kong is widespread. Extensive 5G coverage across the territory including MTR stations To use 5G, your phone must support it (iPhone 12+ or Samsung S21+) and your eSIM plan must include 5G access.

How to set up eSIM on Samsung for Hong Kong?