Trip intelligence / live plan data

Your trip,priced precisely.

Tell us where, how long and how connected you want to be. The calculator estimates your data, checks every eligible plan and shows the strongest value before you buy.

1137 plans ready to calculate

Build your trip model

01 — 03
days
01306090
Daily data style
GB / day
0.1510

Estimated trip data

10.5GB

A planning estimate, not a usage cap.

01

Estimate trip demand

02

Require enough data and validity

03

Rank complete options by value

How the answer is built

Japan

Inspect the full market

The recommendation is the shortcut. The complete destination table stays available for manual comparison.

Live comparison matrix
50 plans indexed
ProviderDataValidityNetworkHotspotPriceGet plan
GigSky logo
GigSkyRank 01
1 GB7 days5GIncluded$2.99$2.99/GBView deal
Saily logo
SailyRank 02
1 GB7 days5GIncluded$3.99$3.99/GBView deal
Airalo logo
AiraloRank 03
1 GB3 days5GIncluded$4.00$4.00/GBView deal
Nomad logo
NomadRank 04
1 GB7 days4GIncluded$4.00$4.00/GBView deal
Yesim logo
YesimRank 05
Unlimited1 days5GIncluded$4.20View deal
GigSky logo
GigSkyRank 06
3 GB15 days5GIncluded$7.49$2.50/GBView deal
Airalo logo
AiraloRank 07
3 GB3 days5GIncluded$7.50$2.50/GBView deal
Airalo logo
AiraloRank 08
3 GB7 days5GIncluded$8.00$2.67/GBView deal
Airalo logo
AiraloRank 09
5 GB7 days5GIncluded$10.00$2.00/GBView deal
Nomad logo
NomadRank 10
5 GB30 days4GIncluded$10.00$2.00/GBView deal
GigSky logo
GigSkyRank 11
5 GB30 days5GIncluded$10.29$2.06/GBView deal
Airalo logo
AiraloRank 12
5 GB15 days5GIncluded$10.50$2.10/GBView deal
Yesim logo
YesimRank 13
5 GB30 days5GIncluded$10.56$2.11/GBView deal
Saily logo
SailyRank 14
5 GB30 days5GIncluded$10.99$2.20/GBView deal
Airalo logo
AiraloRank 15
5 GB30 days5GIncluded$11.00$2.20/GBView deal
Nomad logo
NomadRank 16
Unlimited3 days5GIncluded$11.00View deal
Airalo logo
AiraloRank 17
Unlimited3 days5GIncluded$11.50View deal
Yesim logo
YesimRank 18
Unlimited3 days5GIncluded$12.60View deal
Nomad logo
NomadRank 19
10 GB30 days4GIncluded$16.00$1.60/GBView deal
GigSky logo
GigSkyRank 20
10 GB30 days5GIncluded$16.79$1.68/GBView deal
Airalo logo
AiraloRank 21
10 GB7 days5GIncluded$17.00$1.70/GBView deal
Airalo logo
AiraloRank 22
Unlimited5 days5GIncluded$17.00View deal
Airalo logo
AiraloRank 23
10 GB15 days5GIncluded$17.50$1.75/GBView deal
Saily logo
SailyRank 24
10 GB30 days5GIncluded$17.99$1.80/GBView deal
Airalo logo
AiraloRank 25
10 GB30 days5GIncluded$18.00$1.80/GBView deal
Saily logo
SailyRank 26
Unlimited5 days5GIncluded$18.99View deal
Yesim logo
YesimRank 27
10 GB30 days5GIncluded$19.20$1.92/GBView deal
Nomad logo
NomadRank 28
20 GB30 days4GIncluded$23.00$1.15/GBView deal
Airalo logo
AiraloRank 29
20 GB15 days5GIncluded$24.00$1.20/GBView deal
Saily logo
SailyRank 30
20 GB30 days5GIncluded$24.99$1.25/GBView deal
Airalo logo
AiraloRank 31
20 GB30 days5GIncluded$25.00$1.25/GBView deal
Nomad logo
NomadRank 32
Unlimited7 days5GIncluded$25.00View deal
Airalo logo
AiraloRank 33
Unlimited7 days5GIncluded$26.50View deal
Saily logo
SailyRank 34
Unlimited7 days5GIncluded$28.99View deal
Yesim logo
YesimRank 35
Unlimited7 days5GIncluded$29.40View deal
Yesim logo
YesimRank 36
20 GB30 days5GIncluded$29.76$1.49/GBView deal
Airalo logo
AiraloRank 37
Unlimited10 days5GIncluded$34.50View deal
Saily logo
SailyRank 38
Unlimited10 days5GIncluded$34.99View deal
Nomad logo
NomadRank 39
50 GB30 days4GIncluded$35.00$0.70/GBView deal
Yesim logo
YesimRank 40
30 GB30 days5GIncluded$39.60$1.32/GBView deal
Nomad logo
NomadRank 41
Unlimited14 days5GIncluded$41.00View deal
Yesim logo
YesimRank 42
Unlimited15 days5GIncluded$43.20View deal
Airalo logo
AiraloRank 43
Unlimited15 days5GIncluded$48.00View deal
Saily logo
SailyRank 44
Unlimited15 days5GIncluded$48.99View deal
Nomad logo
NomadRank 45
Unlimited21 days5GIncluded$49.00View deal
Saily logo
SailyRank 46
Unlimited20 days5GIncluded$59.99View deal
Saily logo
SailyRank 47
Unlimited25 days5GIncluded$65.99View deal
Yesim logo
YesimRank 48
Unlimited30 days5GIncluded$66.00View deal
Airalo logo
AiraloRank 49
Unlimited30 days5GIncluded$69.00View deal
Saily logo
SailyRank 50
Unlimited30 days5GIncluded$71.99View deal

Data usage by activity

What actually drains a data plan.

Most people overbuy because they assume maps and messaging are expensive. They aren't — video is. Use this to sanity-check the estimate above.

Cost column uses the live median rate across our index — $2.00/GB. It moves as provider prices move.

Typical mobile data consumption per hour by activity, with how long 1 GB lasts and the approximate cost per hour at the current median price per GB.
ActivityPer hour1 GB lastsCost / hour
Messaging & emailWhatsApp, iMessage, mail — text only10 MB~102 h$0.02
Maps & navigationTurn-by-turn routing; browsing venue photos costs far more20 MB~51 h$0.04
Voice calls over dataWhatsApp / FaceTime Audio30 MB~34 h$0.06
Web browsingSearch, tickets, restaurant pages60 MB~17 h$0.12
Music streamingSpotify at standard quality75 MB~14 h$0.15
Social feedsInstagram, X, Facebook — mostly autoplay video150 MB~6.8 h$0.29
Short video (Reels / TikTok)The quietest way to burn a plan500 MB~2.0 h$0.98
Video SD (480p)Netflix / YouTube on low setting700 MB~1.5 h$1.37
Video callsZoom, Meet, FaceTime video800 MB~1.3 h$1.56
Hotspot — light workLaptop on mail, docs, browsing1 GB~1.0 h$1.95
Video HD / 4KFull-quality streaming; avoid on metered plans2.5 GB~25 min$4.88

Per-hour figures are typical estimates compiled from public sources, not our own measurements — real usage shifts with video quality, app settings, network and background sync. Plan prices, by contrast, come from each provider's own feed and are refreshed daily.

Quick answers

How much data do I need?

The short answer: less than you think, unless you stream video.

How much eSIM data do I need for a one-week trip?
For most travellers, 3–5 GB covers a week of maps, messaging and light social use. If you scroll video-heavy feeds daily or share a lot of photos, plan for 7–10 GB. If you stream HD video or tether a laptop, you're looking at 20 GB or more — or an unlimited plan. The calculator above turns your own habits into a number, then finds the cheapest plan across 5 providers that actually covers it.
How much data does one hour of video use?
Roughly 700 MB in SD (480p) and about 2.5 GB in HD or 4K. Short-video apps like TikTok and Reels sit around 500 MB per hour, which surprises people because it feels lighter than "watching a film". Video calls run near 800 MB per hour. The table above lists typical per-hour figures for every common activity.
Do maps use a lot of data?
No — turn-by-turn navigation is one of the cheapest things you can do, around 20 MB per hour. What actually costs data is browsing the photos, reviews and venue pages inside the maps app. Downloading offline maps over Wi-Fi before you leave removes even that.
Is it cheaper to buy one big plan or several small ones?
Usually one plan that covers the whole trip, but not always — some providers price mid-size bundles disproportionately, and occasionally two smaller packs beat one large one. The calculator checks both routes and tells you when a multi-pack combination is genuinely cheaper, including the total checkout price.
Should I just buy an unlimited eSIM?
Only if you'll genuinely use heavy data every day, and only after reading the fine print. Almost every "unlimited" travel eSIM applies a fair-use policy: you get a set amount at full speed each day (often 1–3 GB), then get throttled — sometimes to speeds where video stops working. We currently index 438 unlimited plans and label them as unlimited, but the daily full-speed threshold is set by each provider, so check their plan page before buying. For light and moderate users, a metered plan is almost always cheaper.
How accurate is this calculator?
The data estimate is a planning figure, not a measurement — per-hour usage varies with app, video quality, network and background sync, so we round up rather than down. The prices, however, are real: every plan comes from the provider's own feed and is refreshed daily (currently as low as US$0.24 per GB). We never estimate or generate a price.
Will I be charged roaming fees on top?
No. A travel eSIM is a prepaid local data plan, not roaming — you pay the plan price and nothing else. Keep your home SIM's data switched off so your phone can't fall back to it, and keep your regular number active for calls and texts.
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