Unlimited eSIM FUP 2026 — truth about Holafly and throttling

When you search for an eSIM to travel, the term "unlimited data" sounds tempting — but it almost always comes with an FUP (Fair Usage Policy) that limits speed after a certain threshold. In this guide we explain what FUP really is, how Holafly applies it in 2026, how it compares to other providers, and what to look for before you buy.

What is FUP and why does it exist?

The FUP (Fair Usage Policy) is a consumption limit after which the operator reduces connection speed (throttling) or blocks the service. eSIM providers buy wholesale capacity from local carriers; allowing truly unlimited consumption to thousands of tourists would saturate networks and spike costs.

FUP appears in two forms:

1. Dynamic throttling: after X GB per day or per total period, speed drops from 4G/5G to 2G or 3G (0.5–3 Mbps). Service still works, but browsing heavy sites or video calls become difficult.
2. Total cutoff: less common in travel eSIMs; service stops until the next billing cycle or until you buy a top-up.

Most international eSIM providers (Holafly, Airalo, Saily, Nomad) use throttling. The key is how many GB you get before throttling and what speed you're left with afterward.

Holafly's FUP in 2026 — the fine print

Holafly sells "unlimited" plans in over 180 countries, valid for 5 to 90 days. As of June 2026, its FUP policies vary by region:

Source: Holafly service terms, reviewed May 2026. Daily limits reset at 00:00 UTC.

What does 2 Mbps or 1 Mbps mean in practice?

• 2 Mbps: enough for WhatsApp with photos, Google Maps, Spotify on medium quality, email. 480p video calls work with occasional lag. Netflix in HD doesn't load well.
• 1 Mbps: WhatsApp text and audio OK, images take 5–10 seconds. Google Maps usable but slow loading tiles. Video calls cut out. Spotify on low quality.

If you use less than 5 GB/day (or 3 GB/day by region), you won't notice throttling. If you watch YouTube, use hotspot for a laptop, or back up photos to the cloud, you hit the limit by mid-afternoon.

eSIM Ahora vs Holafly — different approach

At eSIM Ahora, we don't sell unlimited plans with hidden FUP. We sell transparent fixed-GB packages: you buy 3 GB, 5 GB, 10 GB, or 20 GB for a country, valid 7–30 days, and know exactly how much data you have.

Direct comparison (sample prices for Mexico, June 2026):

If your daily use stays under 5 GB, Holafly works well for short stays (5–7 days). If you exceed 5 GB/day, throttling affects you, and in that case a 10 GB or 20 GB package with full speed and no FUP may be the better choice — see plans for Mexico.

For travelers visiting multiple countries on one trip (multi-country Europe, Latin America region, Asia), we offer regional packages with fixed GB that work in all covered countries without throttling — see plans for Spain or plans for Thailand as examples of popular destinations.

Other providers and their FUP policies (2026)

Airalo

Airalo sells fixed-GB packages, not unlimited. No FUP because you buy a defined amount (1 GB, 3 GB, 5 GB, 10 GB, 20 GB). When it runs out, you pay for a top-up.

Sample price for Japan (May 2026): 3 GB / 7 days = $11, 10 GB / 30 days = $26.

Pro: complete transparency, no surprise throttling.
Con: if you exceed contracted GB, you lose connectivity until you recharge; no fallback network.

Saily

Saily (by NordVPN) sells fixed GB and also offers "unlimited" plans in some countries. As of June 2026, its unlimited plans have an FUP of 3 GB/day in most destinations, with throttling to 1 Mbps after.

Sample price for USA (May 2026): 3 GB / 7 days = $9, "unlimited" / 7 days = $19 (but with FUP of 3 GB/day = ~21 GB total before throttling).

Nomad

Nomad sells fixed GB; no unlimited plans. Wide global coverage, no FUP. Sample price for Argentina (May 2026): 5 GB / 15 days = $16.

Yesim

Yesim has unlimited plans in Europe and some Asian countries, with an FUP of 5 GB/day (throttling to 2 Mbps after). Sample price for Turkey (May 2026): unlimited / 7 days = $21.

How to calculate how much GB you need (no guessing)

If you've never measured your consumption, these averages will guide you:

• Web browsing + social media: 100–300 MB/day.
• Google Maps (3–4 hours active use): 50–150 MB/day.
• WhatsApp with photos and audio: 50–200 MB/day.
• Music streaming (Spotify, Apple Music) on medium quality: 1–2 GB/day if used 4–6 hours.
• Video calls (Zoom, Google Meet, FaceTime) 1 hour: 500 MB–1 GB.
• Netflix / YouTube in HD, 1 hour: 2–3 GB.
• Uploading photos to Google Photos or iCloud (50 photos/day in high resolution): 500 MB–1 GB.
• Hotspot for laptop (remote work, email, light browsing): 1–3 GB/day.

If you add all that and reach 3–5 GB/day, an unlimited plan with 5 GB/day FUP is overkill. If you reach 1–2 GB/day, a fixed 10 GB package for 7–10 days costs less and has no throttling.

Trick for tourists who upload many photos

Set your phone to upload photos only over hotel WiFi, not on mobile data. That saves you 500 MB–1 GB/day. On iPhone: Settings > Photos > Mobile Data > turn off "Mobile Data". On Android: Google Photos > Settings > Backup > WiFi only.

When "unlimited with FUP" makes sense and when it doesn't

It works if:

• You travel 5–7 days to one country and use less than 5 GB/day (social media, maps, messaging, occasional video call).
• You don't want to track how many GB you have left.
• The unlimited price is similar to a fixed 15–20 GB package.

It doesn't work if:

• You use more than 5 GB/day (streaming, hotspot, remote work with frequent video conferences, cloud photo backup).
• You travel more than 10 days and the unlimited price scales up (Holafly charges $87 for 30 days unlimited in Europe; a 20 GB package costs $15–$30 by provider, and 20 GB no throttling lasts longer than 30 days with throttling to 2 Mbps after 150 GB total — or 5 GB/day × 30 days).
• You want full 4G/5G speed all the time with no slowdown.

For 2–3 week trips, the math favors fixed packages: a 20 GB plan with no FUP gives more freedom than unlimited that throttles after 5 GB/day (because if you use 8 GB one day, you're already at 2 Mbps until midnight UTC).

How to check if you're being throttled

If you feel the connection dropped sharply, run a speed test:

1. iPhone or Android: open your browser and go to fast.com (Netflix's speed test, works with no app).
2. Wait 30 seconds; you'll see your download speed in Mbps.
3. If it shows less than 3 Mbps, and your plan was "unlimited," you likely crossed the FUP threshold.

Check how much GB you've used that day (iOS: Settings > Cellular Data > check stats since last reset; Android: Settings > Network & Internet > Data Usage). If you're over 5 GB since 00:00, throttling is expected under most unlimited providers' policies.

eSIM Ahora — transparency first

At eSIM Ahora we sell GB packages at a fixed upfront price: you buy 3 GB, you get 3 GB at full 4G/5G speed. We don't apply throttling because we don't sell "unlimited"; what you see is what you get.

We use tier-1 local networks (Telcel in Mexico, Personal in Argentina, Movistar in Spain, AIS in Thailand, Turkcell in Turkey) and our price per GB drops if you buy larger packages:

• 3 GB / 7 days: sample range $3–$8 by country.
• 10 GB / 30 days: sample range $8–$18 by country.
• 20 GB / 30 days: sample range $15–$30 by country.

See current prices by country at our store (Spain example; change country in the selector).

FUP and roaming: does it also apply to roaming packages from your local carrier?

Yes. If your carrier in Spain, Argentina, or Mexico offers "unlimited roaming in Europe" or "unlimited roaming in USA," it almost always has FUP. For example:

• Movistar Spain (Fusión plan with EU roaming): 25 GB/month roaming inside EU before extra charges or throttling.
• Personal Argentina (with roaming in Chile/Brazil): 5 GB/month before throttling or per-MB charges.
• AT&T Mexico (International Day Pass): 2 GB/day in USA/Canada before speed reduction.

Traditional carriers with "included" roaming usually have lower thresholds than specialized travel eSIM providers. That's why many travelers prefer a local eSIM: the carrier can't apply roaming FUP if you're using a local SIM or a local eSIM plan.

Summary: how to choose without falling for marketing

1. Read the FUP terms before buying any "unlimited" plan. Search for "fair usage policy" or "throttling" in the provider's terms page.
2. Calculate your real consumption by adding up apps you use (streaming, maps, video calls, photo backup). If your daily sum is under 3–5 GB, an unlimited plan with FUP serves you. If it exceeds that, buy fixed GB with no FUP.
3. Compare effective price per GB: a Holafly "unlimited" plan for 5 days at $19 gives ~25 GB real before throttling = $0.76/GB. A 10 GB package no throttling at $12 = $1.20/GB, but with full speed all 10 GB. If constant speed is your priority, fixed GB wins; if not running out of data is your priority, unlimited wins.
4. Check the local network: an unlimited plan with FUP on a tier-2 network (80% coverage) may give less value than a fixed-GB plan on a tier-1 network (95%+ coverage). We publish the local carrier on each country page.
5. Ask about support: if throttling affects you mid-trip, can you buy a top-up to regain speed? Holafly allows recharges; Airalo allows extra GB top-ups; we allow buying a second package that activates when the first runs out, with no reinstall needed.

FAQ

Does FUP reset each day or accumulate over the whole period?

It depends on the provider. Holafly and Yesim reset the counter at 00:00 UTC each day: if you use 5 GB Monday and get throttled, Tuesday you're back to full 4G until the next 5 GB. Other providers (less common in travel eSIMs) use cumulative FUP: if your 7-day plan has 25 GB total, once you hit 25 GB any time, throttling until day 7. Read the terms to know which applies.

Can I avoid throttling by buying a longer plan?

No. The FUP per day is the same in a 5-day plan as a 30-day plan. If Holafly applies 5 GB/day before throttling, buying 30 days gives 30 days × 5 GB/day = 150 GB total before throttling accumulates, but each individual day is still capped at 5 GB full speed. If you use 8 GB one day, that day you're throttled, even if you have 140 GB left for the rest of the month.

Do VPN apps count double in data consumption?

Yes. A VPN encrypts and reroutes all your traffic, adding ~10–20% overhead. If you download 1 GB without a VPN, with a VPN you may use 1.1–1.2 GB. If you're close to the FUP limit, disconnect the VPN for apps that don't need it (like Google Maps or Spotify).

Does throttling affect WhatsApp or FaceTime calls?

Yes. An HD video call needs ~1.5–2 Mbps upload and download stability. If throttling leaves you at 1 Mbps, the video pixelates or freezes. WhatsApp voice calls (no video) work on 0.1–0.3 Mbps, so they stay OK even with severe throttling.

Does the eSIM provider alert you when you hit the FUP limit?

Not in real time. Holafly's app shows how much GB you've used that day, but it doesn't auto-notify at the threshold. You notice the difference when pages load slow. Some users turn on iOS/Android "high data usage" alerts to notify them at 4 GB, so they know they're close to throttling.

Do fixed-GB packages make more sense for longer trips?

Yes. For 2–3 week trips, a 20 GB package with no FUP gives more freedom than an unlimited plan that throttles after 5 GB/day, because if you use 8 GB one day (photo backup, long video call), you're already at reduced speed until midnight. With fixed GB, you spread consumption how you want without daily penalty. See plans for Argentina or plans for Japan to compare options.