Europe eSIM 2026: Klook, KKday & Telco Price Per GB

Three screenshots, three prices, two nights of staring at her phone

"Can you check the SIM situation for my 15-day Europe trip?" A college friend dropped three screenshots into our group chat. All three said "Europe eSIM unlimited," and all three had different numbers: NT$550, NT$1,390 (~US$43), and almost NT$1,700 (~US$52). She'd been comparing for two nights straight and still couldn't pull the trigger.

I know exactly that stuck feeling. My first Europe eSIM got picked the same clumsy way, days, GB count, whether it includes calls, whether hotspot works, every plan's spec sheet laid out differently so nothing lines up for a direct comparison. Then I figured out the trick: convert everything down to real price per GB, and the answer surfaces on its own. Stack a platform promo code on top and the ranking flips again.

This post lays out real prices across five options, Klook, KKday, two Taiwan telecom resellers, and Holafly, run through the math. Match it to how much data you'll actually burn through and you can check out in five minutes.

Three ways to get online in Europe: eSIM, physical SIM, or WiFi hotspot

Let me draw the map first for anyone heading to Europe for the first time. There are basically three choices:

Option	Best for	Rough price	Rookie trap
eSIM	Your phone supports eSIM, want data the moment you land	~US$0.8-2.6 per GB (NT$25-85)	Older phones can't install it
Physical SIM	Older phone, want a local number for calls	~US$24-42 for 15 days (NT$770-1,350)	Have to swap cards, your home number stops receiving texts
WiFi hotspot	Traveling as a group splitting the cost	~US$1.8-4.6 a day (NT$60-150)	Needs charging, one more device to carry

Traveling solo with an iPhone or flagship Android from the last five years? Just go eSIM. No waiting on shipping, no card swap, and your home number keeps getting your bank's OTP texts the whole trip. The rest of this post is all about comparing eSIM plans.

30 seconds before you leave: check if your phone even supports eSIM

First-timers, read this first. Skip this step and every price comparison after it is wasted effort. I nearly bought my mom an eSIM her phone couldn't even install.

The check is simple: dial *#06#. If a field labeled EID shows up with a 32-digit string, your phone supports eSIM. That covers most phones from iPhone XS onward, Google Pixel 3 onward, and Samsung S20 onward, but there are two exceptions worth knowing:

1. Mainland China market handsets usually ship with eSIM disabled, even on brand-new flagship models.
2. Some mid-range dual-SIM Android phones only let you use either a physical card slot or eSIM, not both at once. Check your settings before you leave.

If *#06# shows no EID on Android, do one more check: go to Settings → Network & Internet → SIM cards and look for a "Download SIM" or "Add eSIM" option. Some phones do have an EID but the carrier has locked the feature, so the settings menu is the safer way to confirm.

One thing people forget: if you've switched phones recently, your old eSIM doesn't carry over automatically, and most travel eSIMs don't support transfers either, meaning a rebuy either way. So buy and install right before your trip, not a month ahead just to feel prepared.

Don't worry, once this box is checked, everything left is just arithmetic.

Five real plans, side by side: sticker price first

I pulled together the main plans on the market as of July 2026. Prices move, so double-check the listing before you buy:

Provider	Plan	Sticker price	Per GB	Hotspot	Calls
Klook	30 days, 10GB	NT$550 (~US$17)	NT$55 (~US$1.7)	Yes	No
KKday	14 days, 1GB/day (promo)	NT$365 (~US$11)	~NT$26 (~US$0.8)	Yes	No
KKday	30 days, 20GB	NT$1,682 (~US$52)	NT$84 (~US$2.6)	Yes	No
Orange Holiday (Xiangyi reseller)	30 days, 20GB + calls	NT$770 (~US$24)	NT$38.5 (~US$1.2)	Yes	Yes
Orange Holiday (DJB reseller)	30 days, 20GB + calls	NT$770 (~US$24)	NT$38.5 (~US$1.2)	Yes	Yes
Holafly	15 days, unlimited	~US$36.9 (~NT$1,200)	— (unlimited)	1GB/day cap	No

One more route: Trip.com also runs its own Europe eSIM section, plan structure similar to Klook's, worth a look if your flights and hotel are already booked through Trip.com so everything sits in one app.

At this point you might be thinking: just grab the KKday promo plan and move on. Hold that thought, once you stack a promo code, this ranking flips again.

Real price per GB: run it again after stacking the codes

This is the part that matters most, and honestly it's the exact math I couldn't find spelled out anywhere else after two nights of comparing: platform codes stack directly on top of eSIM plans, but each brand stacks them differently.

KKday: July's site-wide code 2026SUMMER takes 6% off with no minimum spend, and eSIM qualifies for it. I actually put the promo plan in the cart to test it: 14 days at 1GB/day is NT$365 sticker, and after the code it drops to NT$343 (~US$10.6), working out to NT$24.5 (~US$0.75) per GB. Go in through the KKday July sitewide 6%-off page and enter the code by hand at checkout. If you're a new KKday user and you're also booking tickets or a tour on the same order, CUBNEW26 takes NT$350 off any order over NT$2,100 (~US$65). A single eSIM usually won't hit that minimum on its own, so save this code for a bundled order.

Klook: the 30-day 10GB plan is NT$550 sticker. If you happen to check out on a Monday paying with a VISA card, VISA26890105 takes 11% off, landing at NT$489 (~US$15), or NT$49 (~US$1.5) per GB. Not a Monday? New app users get 5% off with BetterOnApp, landing at NT$522 (~US$16). The Klook Europe eSIM listing walks you through installing directly inside the app, no QR-code scanning required, which is friendlier for anyone doing this the first time.

Direct from the telecom (Xiangyi, DJB): almost nothing stacks here. NT$770 (~US$24) is what you actually pay, working out to NT$38.5 (~US$1.2) per GB. Note these are Taiwan-market reseller prices; what you get in exchange is a 30-day validity window and a French phone number for calls, neither of which the OTA plans offer.

Once everything's stacked, the ranking looks like this:

Rank	Plan	You pay	Per GB
1	KKday 14 days, 1GB/day + 2026SUMMER	NT$343 (~US$10.6)	NT$24.5 (~US$0.75)
2	Xiangyi/DJB 30 days, 20GB + calls	NT$770 (~US$24)	NT$38.5 (~US$1.2)
3	Klook 30 days, 10GB + Monday VISA code	NT$489 (~US$15)	NT$49 (~US$1.5)
4	KKday 30 days, 20GB + 2026SUMMER	NT$1,581 (~US$49)	NT$79 (~US$2.4)

Same table, and the plan that ranked first before stacking codes turns out to rank fourth after. That's exactly why sticker price alone never tells the full story.

Unlimited vs. metered: match it to your actual trip

Per-GB price isn't the only thing that matters, how you'll actually burn data is. Here's how I'd match three common trip types:

Scenario one: 15 days or less, mostly maps and messaging apps. 1GB a day is plenty. I actually tested this on my last Europe trip, a full day running Google Maps plus posting to stories used about 700MB. Go with KKday's 1GB/day plan stacked with the 6% code, NT$343 (~US$10.6) total and you're covered.

Scenario two: 20+ days, and you need to stay reachable for calls back home or ring a guesthouse. Go with Orange Holiday through Xiangyi or DJB, NT$770 (~US$24) for 30 days, 20GB, and a European number. I later found out that number has a hidden second use, plenty of European restaurants require a local phone number to receive an SMS verification code for an online reservation, something a data-only OTA eSIM simply can't do.

Scenario three: remote work, video calls every day. Go unlimited, but watch out, Holafly caps hotspot sharing at 1GB a day, and if you're planning to hotspot your laptop into a meeting, that limit will hurt. Plans like KKday's 42-country unlimited eSIM run on Vodafone, Orange, and other major carrier networks, so check the hotspot terms either way before you buy. For this use case I'd actually recommend carrying a second metered SIM dedicated to your laptop, or sorting out your hotel's internet situation before you book: Agoda's listings let you filter directly for "free WiFi," and reading two recent reviews for speed complaints beats discovering the lag only after you've landed.

The 4 mistakes I made (or nearly made)

1. Panicking when I landed with no signal. Most eSIMs only start counting once you connect to the local network, and after landing you still have to manually flip on data roaming for that line before it works. My first time, I stood frozen at the airport for ten minutes, it turned out roaming just wasn't switched on.
2. Losing the PIN before writing it down. This only applies to physical cards, but if you bought an "eSIM plus physical card" combo, photograph the PIN before you toss the packaging. Lock yourself out and you'll need it.
3. Signal cliffs in the mountains. Someone on a forum reported zero signal at Montserrat in Spain, and I hit the same wall down to 3G in the Swiss Alps last time. It's not any one provider's fault, cell towers are just sparse in Europe's mountain regions, so download offline maps for your key routes ahead of time.
4. "Unlimited" hides a throttling clause. Some cheap unlimited plans drop to 1Mbps once you're past the daily high-speed cap, fine for maps, a spinning wheel for video. The Klook Europe internet listing lists the throttling rules for each plan length right in the purchase options, spend the 30 seconds reading that fine print before you buy and save yourself the frustration on the road.

Setup and activation: 5 steps, that's it

1. Buy 1-3 days before you leave, you'll get a QR code email or an in-app install guide.
2. Install it on WiFi while you're still home (Settings → Cellular → Add eSIM → scan QR code), and once it's installed, don't turn the line on yet.
3. Name the new line "Europe," and keep data roaming off for now so you don't accidentally trigger the countdown while you're still at home. This matters most for plans whose listing says "starts on first connection."
4. After you land: turn on the Europe line, turn on data roaming for that line, then wait 1-2 minutes for it to auto-register on the network.
5. Keep your home number's line on but turn off its data, so your bank's OTP texts still come through without triggering international roaming charges.

Not that hard, right? Steps 3 and 5 are where first-timers trip up most, spend two minutes setting these up before you leave and it just switches over cleanly the moment you land.

Bottom line: pick in one sentence

• Tightest budget, light use → KKday's 1GB/day plan stacked with 2026SUMMER, NT$24.5 (~US$0.75) per GB, the cheapest option right now.
• Long trip, need calls and a local number → Orange Holiday through Xiangyi or DJB, NT$770 (~US$24) covers it in one go.
• Heavy use, hotspot constantly → go unlimited, but check the hotspot terms first, and if you work off a laptop, weigh a dual-SIM setup instead.
• Already a new Klook user → grab BetterOnApp and buy it alongside your tickets and tours for extra savings.

I've covered the rest of your Europe prep elsewhere too: the new entry requirement is in my complete ETIAS 2026 Q4 guide, and for the whole trip's budget see the Europe travel budget guide. Promo codes change often, so check 1stCoupon's KKday coupon page before you check out, swap in whatever code is stronger that week.

FAQ

Q: Can multiple people share one eSIM? A: You can hotspot it to your travel companions, but check the plan's hotspot terms first, metered plans usually don't cap hotspot use, while unlimited plans often cap hotspot at 1GB a day. If two or more of you are heavy users, buying separate metered SIMs usually beats sharing one unlimited plan.

Q: Do I need to swap SIMs or reconfigure when crossing borders inside Europe? A: No. Mainstream Europe eSIMs cover multiple countries (commonly 33-42), and when you cross a border your phone automatically switches to the local partner carrier, you'll just see the carrier name change in your signal bar.

Q: If I install the eSIM before I leave, does the clock start early? A: Depends on the plan type. "Starts on first connection to local network" plans won't start just because you installed them at home. "Valid for N days from purchase" plans need careful timing on install. The product page always states which type it is, confirm that line before you buy.

Q: What if I run out of data halfway through the trip? A: Most Klook and KKday plans let you top up data directly in the app, anywhere from 1GB to 20GB, no need to buy a whole new plan. It's also one reason I recommend first-timers stick to the bigger platforms instead of an unknown small site, when something goes wrong, you actually have support to reach.

Sources

• Carol's Travel & Life Journal: 2026 Europe SIM card comparison, five providers — price table comparing five SIM/eSIM providers in NT$
• Miss Slow: 2026 Europe eSIM hands-on picks — hotspot limits and real-use notes for unlimited plans
• Klook blog: how to pick a Europe SIM in 2026 — official plan specs and app install walkthrough
• KKday blog: recommended Europe unlimited internet plans — 42-country coverage and plan types explained
• PTT EuropeTravel board: eSIM speed and coverage discussion — real traveler signal reports