Connection Quality Grader
Grade the numbers you measured.
Open tool4K streaming, Zoom calls, gaming, cloud backup — look up the real bandwidth each activity needs before you buy a plan or blame the Wi-Fi.
“Is 25 Mbps enough for remote work?” is one of the most-asked travel tech questions — and the answer is a table, not a vibe. This is the reference our ChatGPT app consults: nine activities, real download and upload figures, and the gotchas (upload matters for calls; ping matters for gaming).
Email to 4K streaming to family hotspot — each with download, upload, and the note that actually matters (e.g. “per simultaneous stream”).
Video calls and cloud backup live or die on upload speed. The table gives both directions — because “100 Mbps” usually means 100 down / 10 up.
Speed needs and data needs are different questions. Pair this table with our data usage estimator to pick a travel plan that fits both.
These are conservative, real-world figures — the kind that hold up on hotel Wi-Fi at 8pm, not in a lab.
Type what you want to do — “gaming”, “4K”, “video calls” — or browse the full table.
| Activity | Download | Upload | Note |
|---|
In the esimgomobile ChatGPT app and API, this tool is called with exactly these parameters — nothing hidden, nothing invented.
| Parameter | Type | What it is |
|---|---|---|
activity | string | The activity to look up, e.g. “4K streaming”, “video calls”, “gaming”. |
This is a reference table, not a measurement — it tells you what an activity needs, not what your connection delivers (that’s the speed test + connection grader). Figures are conservative real-world minimums for a good experience; your mileage varies with network congestion, VPN overhead (~10–15%), and how many devices share the connection.
Inside the app
A visual walkthrough built for this page — mockups of the exact experience plus photography from the field.

curl https://api.esimgomobile.com/v1/esims \
-H "Authorization: Bearer $KEY" \
-d '{"country":"HO"}'





















Explainer
Tools are free and instant. They're the fastest way to turn a vague travel question into a concrete next step.
The pattern is always the same: tell the tool a little about your trip, and it does the research you'd otherwise do across ten tabs.
Explainer
Most travelers use How Much Speed Do You Need? once while planning and once on the road. Both visits take under a minute.
Bookmark it — travel questions have a habit of returning at the worst moment.
Explainer
If a result surprises you, rerun with different inputs. Exploring the options is the point.
The tool is only as good as its inputs — a rough date range beats a perfect one you never enter.
Explainer
And if you'd rather talk it through, the Tele Agent answers the same questions conversationally, any time.
Every tool result points somewhere useful: usually a plan that fits, sometimes a guide that goes deeper.
From here the path is short — pick a plan, check out through Amazon Pay, scan the QR code, and you're done.
Feature availability
The complete availability matrix — what How Much Speed Do You Need? does, what it accepts, and what you can count on. No asterisks.
| Capability | Status | What it means for you |
|---|---|---|
| Private by design | Included | Your inputs are processed in your browser session; nothing sensitive is stored against you. |
| Free to use | Included | Every run of the tool is free. No credits, no paywall, no trial that expires mid-trip. |
| Instant results | Included | Computation happens the moment you submit. No queues, no waiting room. |
| Onward links | Included | Every result links to the natural next step — the plan, guide or checkout it points to. |
| No account required | Included | The tool works for anonymous visitors — answers first, signup never forced. |
| Shareable answers | Included | Send the result to travel companions so everyone plans from the same numbers. |
| Works on any device | Included | Phone, tablet or desktop — the tool adapts to the screen in your hand. |
| Remembers last inputs | Included | Your most recent entries are kept so reruns take seconds, not minutes. |
| Accepts: Activity | Supported | The tool reads this input, validates it as you type, and factors it into the answer. |
Specifications
Capabilities
Mistakes get caught before they become wrong answers — ranges, formats and required fields are checked live.
Results account for trip length, destination and usage profile instead of giving one-size-fits-all numbers.
Change one input and see the answer update — exploring options is the whole point.
Prefer conversation? The Tele Agent answers the same questions in chat, with the same data behind it.
No telecom jargon in the results. If a term needs explaining, the tool explains it inline.
Once loaded, the tool keeps working through flaky airport Wi-Fi for the inputs you've already entered.
Use cases
See exactly what each option costs before a cent moves — prepaid means no surprises.
Size data for video calls and hotspotting with confidence, not guesswork.
Flight delayed, plans changed? Get the answer in under a minute at the gate.
Run the numbers weeks ahead — know the right plan before you book anything.
One tool covering every traveler's needs — run it once per person, compare, done.
Saved inputs make the second, third and tenth run nearly instant.
FAQ
Each result links onward: usually the plan it recommends, sometimes a deeper guide.
They're computed from your inputs against current plan and coverage data. Garbage in, garbage out — so the tool validates inputs as you type.
No. Every tool on esimgomobile is free to use, as many times as you like.
Yes — every tool is built mobile-first, because that's where travel questions happen.
Your inputs stay in your browser session. We don't sell tool usage data, and there's no ad tracker watching the form.
No — tools work for anonymous visitors. If you do have an account, your last inputs are remembered.
The data room
How Much Speed Do You Need? — capability dashboard
What the tool accepts, what it does best, and what it points to.
Hover any bar or point for its exact value. Tabs switch datasets — everything on this panel is computed from live product data unless labeled illustrative.
Free forever. Pair it with an eSIM plan and you're online before you land.