🇭🇰 eSIM plans for Hong Kong

Starting at $4.57/day*

No data caps
7-days valid
Fast, reliable connection
Skip the roaming bill
QR code emailed instantly

Get your unlimited data

How many days

More days, lower daily rate

How many eSIMs

More eSIMs, bigger discount

Total

—

Get Hong Kong eSIM

Install it now or once you're away. Nothing starts counting until you reach your destination and switch the eSIM on.

* The "as low as" figure is the lowest per-day rate, taken from the longest unlimited data plan on sale here.

Secure Checkout

Why buy from us?

Here's how Onetel stacks up against other options in Hong Kong.

Onetel

Local SIM card

Roaming

Uncapped data plans

Activates instantly

Your number stays the same

No surprise charges

No lock-in

24/7 support

🇭🇰

eSIM costs for Hong Kong

Prices shown in USD

7 days of unlimited data in Hong Kong costs $32.90 — about $4.70 a day on CMHK, 3 Hong Kong or SmarTone, with no roaming charge and no SIM to swap. In Hong Kong, 5G is live and median mobile download speed is 47.3 Mbps.

Duration	Data	Price	Daily cost
1 day	500 MB	$6.18	$6.18/day
3 days	—	$14.76	$4.92/day
5 days	—	$23.82	$4.76/day
7 days	100 MB	$32.90	$4.70/day
10 days	—	$46.48	$4.65/day
15 days	2 GB	$69.18	$4.61/day
30 days	3 GB	$137.18	$4.57/day
180 days	50 GB	$56.00	$0.31/day

🇭🇰

Which networks you connect to in Hong Kong

Your eSIM roams onto Hong Kong's own operators. These are the networks and the frequencies they run — check your phone supports them before you travel.

Operator	4G / LTE bands	5G bands	5G
CMHK	B1, B3, B7, B8, B40	n1, n78, n79	Yes
3 Hong Kong	B1, B3, B7, B8, B40	n1, n78	Yes
SmarTone	B1, B3, B7, B8	n1, n78	Yes
HKT (csl)	B1, B3, B7, B8, B40	n1, n78, n79	Yes

47.3 Mbps

Median download

11.6 Mbps

Median upload

Source: Ookla Speedtest Global Index, August 2025

Coverage in Hong Kong

MTR underground stations and tunnels have full 4G/5G coverage from all operators; no significant rural coverage gaps. Some foreign phones lack B40 and n79.

Common Questions

The details worth knowing about your Hong Kong eSIM

No. This eSIM provides coverage only within Hong Kong. If you cross into Macau or Shenzhen, your connection will drop. You would need a separate eSIM or plan that includes those areas.

You may experience weaker signal indoors or in some MTR stations. Operators CMHK, 3 Hong Kong, and HKT use B40 and n79 alongside other bands. SmarTone does not use B40 or n79, so your phone will work on that network without those bands.

The eSIM connects to one of the four major Hong Kong operators: CMHK, 3 Hong Kong, SmarTone, or HKT (csl). Your device picks the strongest available signal automatically; you cannot manually select a specific operator.

No. Prepaid eSIMs purchased online for short-term visitor use do not require local ID or passport registration. You install the eSIM before arrival and it activates upon connecting to a Hong Kong network.

Yes. All four operators provide full 4G and 5G coverage in MTR underground stations and tunnels. Your eSIM will work continuously while you ride the MTR, including between stations.