Is Kos good for getting around by bike with online maps?

Very. Kos Town and the surrounding coast are famously flat with dedicated cycle lanes, and 4G/5G is strong there, so live navigation to Tigaki, Marmari or the Asklepion works smoothly.

Can I use the same eSIM on day trips to Kalymnos or Nisyros?

On those Greek islands, yes - it's one national plan covering all of Greece. On a Bodrum day trip to Turkey, though, it won't work, as this eSIM only carries Greek networks.

Kos eSIM.

Name: Kos travel eSIM
Brand: My Holiday SIM

Cycle Kos Town's waterfront, soak in Therma's hot springs and hop toward Kalymnos, fully connected.

from $2.15/day · unlimited dataAll of Greece →

Unlimited data5G where availableInstant QR by emailKeep your number

1 · How many days?

10 daysOther:days

2 · How much data?

3GBBest pricevalid 15 days$4.59$0.46/day

Cheapest plan covering your trip: 3GB, valid 15 days.

Travellers (one eSIM each)

1 × 3GB (valid 15 days) · 10-day trip$4.59

Good to know in Kos

Kos lies just miles off Turkey, so near the east coast and Kefalos your phone may drift onto a Turkish tower where your Greece eSIM has no data - set network selection to manual and pick Cosmote, Vodafone or Nova.

Best time to visit Kos

May to October suits Kos, with warm seas and calm crossings; visit in late spring or September for gentler heat and thinner crowds at Tigaki and Kefalos.

Two simple ways to buy

Kos eSIM plans: unlimited, or by the GB.

Every Kos eSIM from My Holiday SIM is one of two straightforward types. Pick whichever fits how you travel in Kos — you can always top up or switch on your next trip.

Traveller streaming and browsing freely on an unlimited-data travel eSIM

Unlimited plans

High-speed data, nothing to count

Priced per day — the longer you stay, the better the daily rate. Ideal for streaming, hotspot and longer trips where you'd rather not watch a data meter. A fair-use policy keeps speeds fast for everyone; see each plan for the detail.

Best for streaming, video calls & hotspot
Great for longer or open-ended trips
One price per day — no GB anxiety

By-the-GB plans

3GB10GB20GB

A set bundle, brilliant value

A fixed data allowance (say 3 GB or 10 GB) valid for your travel days. The best-value pick for lighter trips built around maps, messaging and a bit of browsing. Running low? Top up in a couple of taps — nothing to reinstall.

Best value for lighter, shorter trips
Clear allowance — pay only for what you need
Top up any time from your phone

Compare plans →Not every destination has both types — the picker shows what's available where you're headed.

Plan your data

How much data do you need in Kos?

A rough, honest guide to sizing your Kos eSIM so you're not guessing. Most travellers in Kos are comfortable on 3–5 GB a week — heavy streamers just go Unlimited.

Traveller checking maps and messages on her phone using a My Holiday SIM eSIM

Not sure? Start with a 5 GB plan — you can top up in seconds if you run low.

Light

~1 GB / week

Maps, messaging & email

Google Maps, WhatsApp, email and the odd search. Plenty for a city break where you mostly need directions.

Suits 1–3 GB plans

Balanced

3–5 GB / week

Everyday holiday use

Everything above plus social scrolling, music, cloud photo backups and a little video. Where most travellers land.

Suits 5–10 GB plans

Kos eSIM: your local data guide.

Kos packs the ancient Asklepion ruins, the mountain village of Zia, seaside Therma hot springs and long sandy stretches at Tigaki and Kefalos into one easy island. A Kos eSIM keeps your rental-bike routes, ferry times to Kalymnos and Nisyros, and Bodrum day-trip bookings live wherever you roam.

One eSIM for Kos and all of Greece. It's the national Greece eSIM — from $2.15/day with unlimited data, working the same in Kos as it does the moment you leave it.

Landing at Kos - Hippocrates (KGS)?

Install the QR at home, then switch the eSIM on as you taxi in — you're online before you reach the arrivals hall.

Kos eSIM pricingbest-value plan · per day

Days

Per day

Total

Saving

3 days1GB

$0.54

$1.63

—

5 days1GB

$0.33

$1.63

−39%

7 days1GB

$0.23

$1.63

−57%

10 days3GBPopular

$0.46

$4.59

−15%

15 days3GB

$0.31

$4.59

−43%

30 days3GB

$0.20

$6.11

−63%

Each trip length shows the best-value plan that covers it. Total always shown before you pay.

eSIM vs the old ways in Kos

eSIM

ROAMING

AIRPORT SIM

Data allowance

Unlimited

Usually capped

Rarely unlimited

Price known upfront

Prepaid

Billed after

Varies at the desk

Ready when you land

Instantly

After the queue

Keep WhatsApp number

SIM swapped

Kos eSIM from $2.15/day — the whole bill, agreed before you fly.

Across the region

Where you'll lean on data in Kos.

Kos Town

5G and strong 4G along the harbour, castle and the flat cycle lanes everyone rides here.

Zia (Mount Dikeos)

The sunset-view village holds decent 4G, though signal softens on the mountain road climbing up.

Kefalos

Reliable data across the southwest resorts and Paradise Beach bars, easing at the quieter coves.

Mastichari

Dependable coverage at the ferry harbour for boats to Kalymnos and Pserimos.

The practical bit

Getting around Kos on your eSIM.

Apps you'll want online in Kos

Ferryhopper— Book fast ferries and catamarans to Kalymnos, Nisyros, Rhodes and beyond, with live timetables.
Welcome Pickups— Arrange English-speaking transfers from Kos airport to Kardamena, Tigaki or Kos Town.
Google Maps— Excellent for the island's flat cycle routes and driving to Zia or Kefalos; save offline maps for the hills.
FREE NOW— Greece's taxi app has limited island reach, so many Kos taxis are still booked at ranks or by phone.

How long to stay in Kos

A typical Kos stay runs three to seven nights, blending beach time at Tigaki and Kefalos with the Asklepion, Zia sunsets and a ferry hop to a neighbouring island.

How much data for Kos

A balanced 3-5 GB handles a week of cycle-route navigation, ferry bookings and social sharing; pick Unlimited if you plan to stream or hotspot from your Kardamena or Kos Town base.

Coverage in Kos

Kos Town, Kardamena and Tigaki carry strong 4G with growing 5G, while signal eases in the Dikeos mountains around Zia and can wander onto Turkish networks along the eastern coast facing Bodrum.

Where you're headed

Discover Kos.

Sailboats moored at a scenic pier in Kos, Greece under a bright summer sky.

A serene view of a sailboat moored at a pier in Kos, Greece, under a clear blue sky.

A serene view of fishing boats moored in the picturesque harbor of Kos, Greece, under a bright summer sky.

Beautiful historic stone building with lush garden under a clear blue sky, capturing Mediterranean architecture.

How to activate your Kos eSIM.

Full installation guide →

A traveller happily planning her next trip with a map and phone

Buy your plan

Choose your days — the QR code arrives by email in seconds.

A traveller installing her eSIM from the sofa in two minutes

Install at home

Scan the QR on Wi-Fi before you fly. About two minutes, no app needed.

Friends laughing together while packing for a holiday

Fly relaxed

Nothing counts down yet — your days start only at first connection.

A joyful family reunion at the airport arrivals hall

Switch on in Kos

Turn the line on when you land. Connected before baggage claim.

New to eSIM in Kos?

What is a Kos eSIM?

A Kos eSIM is a digital SIM that's already built into your phone. Scan one QR code and a local Kos data plan installs alongside your home SIM — no plastic, no tray tool, no swap. Your number and WhatsApp stay exactly where they are.

✓ 2-minute install✓ Keep your number✓ Works on phones from 2018+

How eSIM works →Check my phone

A traveller with a backpack smiling at her phone — online abroad with My Holiday SIM

Connected · 5G

Home SIM · calls & WhatsAppHoliday eSIM · unlimited data

30-day refund promiseUnused, uninstalled eSIM? Full refund, no questions.

The price is the billPrepaid and final — roaming charges can't happen.

Days start when you landInstall early with zero pressure; counting begins at first connection.

Humans, 24/7Real people answer, before, during and after the trip.

Why travellers choose My Holiday SIM for Kos.

Instant eSIM deliveryQR code in your inbox seconds after checkout — even at the departure gate.

No physical SIMNothing to collect, lose or poke out with a paperclip. Your home SIM stays put.

Keep your WhatsApp numberData flows through us; WhatsApp stays on your home number. Family always reaches you.

A traveller at the departure gate, eSIM ready on her phone

eSIM ready in ~2 minutes

No bill shock, everOne clear price before you fly. Roaming charges simply can't happen.

Secure paymentsCards, Apple Pay, Google Pay, PayPal and Klarna — encrypted end to end.

Real human supportReal people — before, during and after your trip. Live chat and email, no bots. Easy top-ups too.

Coverage in Greece.

5G where available, fast 4G everywhere else

Connected · 5G

Your eSIM joins Greece's partner networks automatically — no settings to choose, no manual network hunting. If signal drops in a remote spot, toggling Airplane Mode for a few seconds forces a fresh connection.

Cosmote
Vodafone
Nova

Popular places covered

AthensSantoriniMykonosCreteRhodesCorfu

Keep data roaming ON for the eSIM line only — that's the switch travel eSIMs use, and it never adds charges on our plans.

Trusted networks, honest numbers.

No invented star ratings behind your Kos eSIM — just the numbers we actually stand behind.

Friendly globe with location pins — coverage on every continent

My Holiday SIMSTAY CONNECTED. ANYWHERE.

200+

destinations — every continent covered

regions covered by a single regional eSIM

~2 min

typical install — QR to connected

Live

chat & email support

Before you fly

Kos eSIM questions, answered.

Kos sits close to Turkey, so towers there can be stronger near the coast. Switch network selection from automatic to manual in your settings and choose a Greek carrier - Cosmote, Vodafone or Nova - so your eSIM data keeps working.

Your Kos eSIM glossary.

eSIMA SIM built into your phone's hardware. Plans install onto it digitally — no plastic card involved.

QR profileThe code we email you. Scanning it downloads your holiday plan onto the eSIM. One scan per device.

Data roaming (the switch)The toggle travel eSIMs use to join partner networks abroad. On our plans it never adds charges — keep it ON for the eSIM, OFF for your home SIM.

Hotspot / tetheringSharing your phone's data with laptops and tablets. Included on our plans wherever networks allow.

Top-upExtra days added to a live plan from your account. They append to the end — nothing overlaps.

First connectionThe moment your eSIM first joins a network at the destination — that's when your days start counting, not before.

Travelling wider in Greece?