ESIM BLOCKCHAIN WEEKPowered by Fizen·Backed by Tether
A packed exhibition hall in Seoul
Seoul
5GCall connected · 00:12:04

29 September - 1 October 2026  ·  Grand Walkerhill Seoul, Gwangjin

Korea Blockchain Week

A business trip needs
a business eSIM.

Browse. Call. Search. Download. Present.
At home Wi-Fi speed.

$8.023 days · 3GB

Built for conference weeks.

For the people who fly in to work. The flight, the venue, the taxi, the deck, the call and the dinner, on one line.

  • Your work number stays live: this is a second line, not a swap
  • Share it with the laptop on plans that allow hotspot
  • Full speed for video calls, screen shares and big uploads
  • Install in 2 minutes, online 60 seconds after you land
  • Pay by card, Apple Pay or Google Pay on Stripe's secure page
  • One-for-one replacement, 24/7 humans
Taking a call beside a laptop

Everything opens the way it does at home

KakaoTalkNaverTelegramXWhatsAppGoogleInstagramFacebookTikTokZoomSlackChatGPTKakaoTalkNaverTelegramXWhatsAppGoogleInstagramFacebookTikTokZoomSlackChatGPT

The problem

We will not let any of this happen to you

Pricing

The eSIM made exclusively for businessmen

Recommended
7 days · Unlimited

The one that covers the whole trip: side events from the 26th to the last session on the 1st, with a day either side.

$29.05
3 days
$8.02
7 days
$10.01
7 days
$18.02
3 days
$12.03
10 days
$35.07
15 days
$49.09
DaysDataPrice
3 days1GB$7.09
7 days3GB$9.02
15 days5GB$10.01
30 days5GB$10.01
15 days10GB$18.53
30 days10GB$19.03
15 days20GB$29.04
30 days20GB$30.04
30 days50GB$49.08
5 daysUnlimited$20.04
30 daysUnlimited$69.18

South Korea prices are the Fizen eSIM catalog price, checked October 6, 2026. The price at checkout is the one that counts.

Comparison

Plenty of options. The wise ones pick this.

Venue Wi-FiCafe and hotelRoamingPocket routerBlockchain Week eSIM
Holds a video call through the keynoteNoNoYesYesYes
Lets your company VPN throughOften blockedOften blockedYesYesYes
Pulls a 200MB deck without stallingNoSometimesYesYesYes
Follows you to the taxi and the dinnerNoNoYesYesYes
A connection only you are onNoNoYesSharedYes
Ready before you flyNoNoYesCollect at the airportYes, in 2 minutes
What the week costsFree, when it worksFree$84 day pass, or $2,099 a GB without oneHire plus a deposit$29.05

Roaming figures are the published US carrier rates: Verizon TravelPass $12 a day, AT&T $2.05 a megabyte pay-per-use. Yours will differ.

Evidence

Conference Wi-Fi, on the record

Sized for a normal Tuesday

Two to three devices per attendee, and log-ins alone spike past a thousand at once.

rottenwifi.com
Oversold threefold at SXSW

Exhibitors reported the Wi-Fi dropping every time footfall peaked. Reported as the pattern at nearly every large venue.

deadzones.com
Cloning it is a catalogued attack

Evil Twin has its own MITRE ATT&CK entry. DEF CON's Wall of Sheep lists what gets picked off conference Wi-Fi.

MITRE ATT&CK T1557.004

Here for you, with integrity

1-for-1 guarantee

If it does not work you get a replacement, free, for the whole trip and not only on day one.

2-min setup

Scan the QR at home. Nothing starts counting until you land.

Refund on unused

Trip fell through before you activated it? Hand it back.

24/7 human support

A person, not a bot loop, for the whole trip.

Delegates talking between sessions at a conference

The week

Here to connect you to the right people

The full side-event roster and who is speaking, with a booking link on every row.

Speaking at KBW2026

Balaji Srinivasan
Balaji SrinivasanThe Network State
Joseph Lubin
Joseph LubinConsensys
Tom Lee
Tom LeeBitmine
Arjun Sethi
Arjun SethiKraken
Caroline D. Pham
Caroline D. PhamMoonPay
Brian Quintenz
Brian Quintenzformerly CFTC
Emad Mostaque
Emad MostaqueIntelligent Internet
Sheila Warren
Sheila WarrenAdvanced AI Society

Local knowledge

What actually catches people out

Getting there

The venue sits east of the river. Budget an hour from Gangnam in evening traffic, twenty minutes at dawn.

Side events

Luma is where the real schedule lives. Check it hourly; the good ones cap at eighty people.

Paying

Card works nearly everywhere. Keep ₩30,000 in cash for the pojangmacha tents afterwards.

Timing

KBW usually lands next to Chuseok, when half the country is travelling. Book beds and trains early.

Check

Thirty seconds, before you pay

Dial *#06#

If an EID appears, your phone takes an eSIM.

No EID? Don't buy this. Buy a physical SIM at the airport instead.

Three colleagues talking in a high-rise office

Questions

Straight answers

When does the clock start?

Not at purchase. Buy today; your days begin the first time the eSIM connects in the country.

How long does setup take?

About two minutes. We email a QR code; scan it before you fly.

Is 'unlimited' really unlimited?

Unlimited data at high speed on LG U+, 4G and 5G. We print the network instead of hiding it.

What if something goes wrong?

One-for-one replacement, and any unused plan is refunded.

Can I hotspot?

It depends on the plan, and checkout shows it before you pay.

Flying soon. Is your data ready?

Install it tonight over home Wi-Fi. It switches itself on the moment you land at Incheon.

Contact

Questions before you buy?

Flying on after Seoul?

Your next country is covered too.

Thailand, USA, Europe, China, Indonesia, Philippines and 80+ more, from the same team at fizen.io.

Browse eSIMs at fizen.io
7 days · Unlimited · $29.05 Buy now, activate when you land in Seoul.