GigSky
Score pending reviews
Unlimited
Data
1 days
Validity
−15% code ESIMADVICE15
$3.90
$3.31
per-GB —
One search.
Every eSIM.
One search, every eSIM plan. Compare 4607 data plans from 3 providers across 202 countries — real coupons applied before we rank. Always free.
Popular destinations
All destinations →Japan
from $2.54 · 84 plans $0.76/GBTürkiye
from $2.54 · 87 plans $0.67/GBUnited States
from $2.54 · 87 plans $0.68/GBThailand
from $2.54 · 95 plans $0.45/GBFrance
from $2.54 · 91 plans $0.42/GBItaly
from $2.54 · 91 plans $0.42/GBSpain
from $2.54 · 91 plans $0.42/GBUnited Kingdom
from $2.54 · 94 plans $0.19/GBUnited Arab Emirates
from $3.39 · 45 plans $2.12/GBIndonesia
from $2.54 · 88 plans $0.84/GBVietnam
from $2.54 · 84 plans $0.99/GBIndia
from $2.54 · 82 plans $0.99/GBDeals live right now
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Simbye
Score pending reviews
1GB
Data
7 days
Validity
−15% code ESM15
$2.99
$2.54
$2.54/GB effective
Simbye
Score pending reviews
1GB
Data
7 days
Validity
−15% code ESM15
$2.99
$2.54
$2.54/GB effective
Simbye
Score pending reviews
1GB
Data
7 days
Validity
−15% code ESM15
$2.99
$2.54
$2.54/GB effective
Prices updated 10 min ago
Why RoamSonar
Honest by construction
Unknown specs show as “—”, never a guess. Throttled “unlimited” gets badged. If a plan needs ID checks, we say so before you buy.
Prices, decoded
Per-GB math on every plan, and verified coupons applied before we rank anything — the price you see is the price you pay.
Free, always
Providers pay us a commission when you buy through our links. You never pay extra, and it never changes rankings — the formula is public.
Sailing somewhere?
Regular eSIMs stop about 12 nautical miles from shore. Maritime plans are coming to RoamSonar — for now, check your itinerary's port countries below.
Good questions
What's an eSIM, in one sentence?
A digital SIM you install with a QR code — data for your trip in about two minutes, no store visit, no tiny plastic tray.
What does “throttled unlimited” mean?
Many “unlimited” plans slow you down (for example to 1 Mbps) after a daily cap. When a provider tells us the throttle rules we translate them to plain English and badge the plan; when they don't, we show “—” instead of guessing.
Are the coupon prices real?
Yes. A strikethrough only appears when we have a working, verified code — like ESM15, which is applied automatically when you click through our link — and we rank plans by the price you'd actually pay.
How fresh are these prices?
Our feeds re-sync every 30 minutes and every page shows a real “updated X ago” stamp. If data goes stale, we tell you instead of pretending.
How does RoamSonar make money?
Affiliate commissions from providers when you buy through our links. It never affects ranking — the exact formula is public on our How we rank page.