HelloRoam provides 7 Hong Kong eSIM plans from $3.49 on CMHK 5G, blanket-covering all 18 districts including Kowloon, Hong Kong Island, and Lantau. The MTR metro runs full 5G underground throughout. Signal holds right to the Shenzhen border at Lo Wu and Lok Ma Chau. Best per-GB rate: $0.86/GB. Prices verified May 2026.
ACBy Alex ChenSenior eSIM Analyst· Mobile network engineer by background. Covers Asia-Pacific for eSIMRated, focusing on how each provider handles activation, carrier attachment, and real-world speed on the partner networks it resells.||
Key takeaway
HelloRoam provides 7 Hong Kong eSIM plans from $3.49 on CMHK 5G, blanket-covering all 18 districts including Kowloon, Hong Kong Island, and Lantau. The MTR metro runs full 5G underground throughout. Signal holds right to the Shenzhen border at Lo Wu and Lok Ma Chau. Best per-GB rate: $0.86/GB. Prices verified May 2026.
All Hong Kong eSIM plans compared
eSIM provider comparison for Hong Kong — Prices verified May 29, 2026
Provider
Price (5GB)
Coverage
Rating
Best For
HelloRoamBest Value
$10.49
CMHK
4.9/5
Best overall
Airalo
$12.00
200+ countries
4.5/5
Most destinations
Holafly
Unlimited
160 countries
4.2/5
Heavy users
Our top 3 picks for Hong Kong
We evaluated 6 eSIM plans available for Hong Kong, comparing them on verified pricing, network coverage, activation speed, and app quality. Five stood out.
HelloRoam
Best Value
$10.49
5 GB / 30 days
Pros: Lowest price per GB, fast activation, Hong Kong coverage on CMHK. Cons: Newer brand, smaller community than Airalo.
Hong Kong has 1 carrier available for eSIM visitors: CMHK (China Mobile Hong Kong). CMHK operates 5G across Hong Kong Island, Kowloon, and the New Territories. CSL Mobile (now HKT) and SmarTone also run 5G networks, but visitor eSIM plans primarily route through CMHK.
Hong Kong's mobile infrastructure is among the densest globally, with 5G available inside the MTR system, at Hong Kong International Airport (HKIA), at border crossing points like Lo Wu and Lok Ma Chau, and at Ocean Park and Disneyland Hong Kong. Network speeds regularly exceed 300 Mbps on 5G in Central and Kowloon districts. The critical boundary: CMHK's Hong Kong network is legally separate from China Mobile's mainland network.
Your Hong Kong eSIM stops working at the border. Mainland China requires a separate SIM or eSIM.
Coverage analysis
Hong Kong's coverage is exceptional and specific to the territory. HK Island districts including Central, Wan Chai, Causeway Bay, and Aberdeen have CMHK 5G throughout. Kowloon's Mong Kok, Tsim Sha Tsui, and Wong Tai Sin have 5G with no gaps.
The MTR, including the Airport Express from HKIA to Central, has continuous coverage. Victoria Peak has 5G at the summit and on the tram. New Territories cities like Sha Tin, Tuen Mun, and Yuen Long have full 5G.
Remote hiking trails in Sai Kung East Country Park and the MacLehose Trail have coverage on main trail sections but reduced signal in valleys. Lantau Island's Ngong Ping 360 cable car and Tian Tan Buddha area have 4G. The Shenzhen border crossing at Lo Wu and Lok Ma Chau maintains Hong Kong 5G signal until the checkpoint; signal switches to mainland China carriers immediately after crossing.
Activation
Install your Hong Kong e-sim QR code before departure and activate after landing at Hong Kong International Airport (HKIA). CMHK 5G connects in under 90 seconds in the arrivals hall. The Airport Express train to Central maintains signal throughout.
If you plan to cross into Shenzhen or anywhere in mainland China, purchase a separate China eSIM before your trip, as your Hong Kong eSIM will not work there. For Macau day trips, some Hong Kong eSIM plans extend coverage; check your specific plan terms. iPhone XS or newer and Android flagships from 2019 support Hong Kong's 5G bands.
Data usage tips
Hong Kong data use is high because the city rewards connectivity. Budget 300 MB/day for navigation on Google Maps through dense street grids and elevated walkways, 200 MB/day for the Octopus app and MTR mobile fare payment, and 150 MB/day for translation apps in wet markets and local restaurants. WeChat Pay and Alipay HK for merchant payments use minimal data per transaction.
The Hong Kong Museum of History audio guide downloads 60 MB. A 5 GB plan covers a 7-day trip comfortably. Heavy users doing video calls or hotspot from a serviced apartment should consider 10 GB or the 50 GB plan at $42.99.
How we evaluated plans for Hong Kong
Entry-level: 1 GB / 7 days costs $3.99, sufficient for a 3-4 day transit stopover. Mid-tier: 5 GB / 30 days at $10.49 ($2.10/GB) covers a week-long visit with daily Maps and social use. Value pick: 10 GB / 30 days at $15.99 ($1.60/GB) suits extended stays or business travelers.
Best rate: 50 GB / 30 days at $42.99 ($0.86/GB) is the lowest per-gigabyte cost across 7 plans verified and suits digital nomads or high-volume users. Hong Kong pricing is among the best in Asia for 5G eSIM coverage quality.
Best eSIM plans for Hong Kong in 2026
Hong Kong 50GB 30Days
CMHK (5G)30 validityTop-up available
$42.99
50 GB · 30 validity
Per GB$0.86
TetheringYes
NetworkCMHK
Hong Kong 20GB 30Days
CMHK (5G)30 validityTop-up available
$25.99
20 GB · 30 validity
Per GB$1.30
TetheringYes
NetworkCMHK
Hong Kong 10GB 30Days
CMHK (5G)30 validityTop-up available
$15.99
10 GB · 30 validity
Per GB$1.60
TetheringYes
NetworkCMHK
Hong Kong 5GB 30Days
CMHK (5G)30 validityTop-up available
$10.49
5 GB · 30 validity
Per GB$2.10
TetheringYes
NetworkCMHK
Hong Kong 3GB 30Days
CMHK (5G)30 validityTop-up available
$7.49
3 GB · 30 validity
Per GB$2.50
TetheringYes
NetworkCMHK
All eSIM plans for Hong Kong — Prices verified May 29, 2026
Plan
Network
Validity
Price
Hong Kong 50GB 30Days ⭐
CMHK
30d / 50GB
$42.99
Hong Kong 20GB 30Days
CMHK
30d / 20GB
$25.99
Hong Kong 10GB 30Days
CMHK
30d / 10GB
$15.99
Hong Kong 5GB 30Days
CMHK
30d / 5GB
$10.49
Hong Kong 3GB 30Days
CMHK
30d / 3GB
$7.49
Hong Kong 1GB 7Days
CMHK
7d / 1GB
$3.99
Hong Kong 2GB/Day FUP1Mbps
CMHK
1d / 0GB
$3.49
Prices verified: May 2026
Questions about Hong Kong eSIMs
What is the best eSIM for Hong Kong?+
HelloRoam's Hong Kong 5 GB plan costs $10.49 on CMHK 5G. It covers a week-long trip with daily Maps navigation, MTR fare apps, social media, and video calls. Business travelers or digital nomads should consider the 10 GB plan at $15.99 or the 50 GB plan at $42.99, which delivers the lowest per-gigabyte rate across 7 plans. All plans connect to CMHK's 5G network, which covers every MTR station and district in the territory.
How much does an eSIM for Hong Kong cost?+
HelloRoam offers 7 Hong Kong plans starting at $3.49 for 0 GB on CMHK 5G. Mid-tier: 5 GB / 30 days at $10.49, 10 GB at $15.99. Extended: 20 GB at $25.99, 50 GB at $42.99 ($0.86/GB). The 50 GB plan has the lowest per-gigabyte rate across all 7 plans verified, and prices verified May 2026.
Does a Hong Kong eSIM work in mainland China?+
HelloRoam's Hong Kong eSIM activates in under 2 minutes via QR code with no store visit required. Hong Kong and mainland China are separate mobile network jurisdictions, and CMHK's Hong Kong network ends at the border crossing. To use mobile data in Shenzhen, Guangzhou, or anywhere in mainland China, you need a separate China SIM card or a China eSIM plan.
How do I get an eSIM for Hong Kong and China?+
You need two separate plans for Hong Kong and mainland China — plans start at $3.49 for 0 GB. A Hong Kong eSIM covers the territory including HKIA, all districts, and the MTR, and for China access, purchase a separate China SIM or eSIM plan that works on mainland networks. Some providers sell combo Hong Kong plus China plans that use separate eSIM profiles for each jurisdiction.
What are the best providers for Hong Kong eSIMs?+
Seven eSIM plans are available for Hong Kong, all connecting to CMHK 5G. Plans range from 1 GB / 7 days at $3.99 to 50 GB / 30 days at $42.99. CMHK covers all of Hong Kong's 18 districts, every MTR station including the Airport Express, and major tourist sites, and all 7 plans support hotspot tethering. The best per-gigabyte rate across plans verified is $0.86 on the 50 GB plan.
Does eSIM work in the MTR subway in Hong Kong?+
Hong Kong's 1 eSIM carrier network The MTR Mass Transit Railway system has complete mobile coverage throughout, including underground platforms and in-tunnel sections. CMHK 5G works on the Airport Express from HKIA to Hong Kong Station, on Tsuen Wan Line, Island Line, and all other MTR lines. Signal does not drop in the tunnels between stations. This is one of the practical advantages of Hong Kong's densely installed mobile infrastructure.
How much data do I need in Hong Kong?+
Hong Kong rewards connectivity — plans start at $3.49 for 0 GB, and light use covering MTR navigation and messaging runs 1 to 2 GB per week. Moderate use with daily Maps, social media, and some video calls runs 3 to 5 GB per week. Heavy use with streaming or hotspot for a laptop runs 8 to 10 GB per week.
Does my phone support eSIM in Hong Kong?+
SmarTone, 3HK, and CMHK run Hong Kong's dense 5G network. Carrier-unlocked devices from 2018 onward — iPhone XS, Pixel 3a, Galaxy S20 — all connect on CMHK's 5G bands. Your device must be carrier-unlocked. Hong Kong uses 5G NR n78 and LTE Band 3 and Band 1, which are supported by virtually all current-generation smartphones. Confirm unlock status in your phone settings before purchasing a plan.
Can I use the same eSIM for both Hong Kong and Macau?+
Most Hong Kong eSIM plans do not include Macau — plans start at $3.49 for 0 GB. Macau runs on separate networks (PT Macau and CTM). Check your plan's roaming terms before the ferry or bridge crossing. A separate Macau eSIM plan costs $3 to $5 for short visits.
Should I get an eSIM before flying to Hong Kong?+
Hong Kong's 1 eSIM carrier network Purchase and install your Hong Kong e-sim before departure. At HKIA, CMHK activates in the arrivals hall before you reach the taxi or bus stop. The Airport Express to Central runs immediately and you need data for navigation, hotel check-in apps, and translation. Currency exchange apps also run better with a live connection, and HKIA has SIM card vending machines but an eSIM activates faster with no physical swap.
Provider reviews
Read our in-depth reviews of the top eSIM providers available in Hong Kong.
HK
