Google Fi’s 10th birthday is tied to two practical changes: a new $35 plan and the introduction of data-only eSIMs. If you’re shopping for cheaper service, or you want cellular data without a full phone line, this announcement is worth reading closely.
This guide breaks down what those offerings typically mean in real-world use—how to switch, how to activate data-only eSIMs, how to avoid the most common gotchas, and what to check if something doesn’t work right away.
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What Google Fi’s 10th Birthday Announcement Changes
At a high level, Google Fi is using its anniversary to expand two things: plan affordability and flexible connectivity. The $35 plan is aimed at customers who want a predictable price, while data-only eSIMs target tablets, secondary devices, and “always-on data” use cases.
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Because Fi plan names and exact inclusions can vary by region, promotions, and the line type tied to your account, your best starting point is your own Fi app/Account page. Use the steps below to confirm the final details tied to your number.
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The New $35 Plan: Who It’s For and How to Validate It
The biggest question isn’t “is it $35?”—it’s what $35 buys. Fi plans often bundle things like data behavior, taxes/fees treatment, and international data rules. To judge whether you should switch, you need to compare your current monthly pattern against the $35 plan’s actual inclusions.
What to look for in the $35 plan details
When you view the plan in the Google Fi app or on the web, confirm the following before you change:
- Data model: Is it a capped amount, “unlimited with throttling,” or something else?
- Speed policy: After your included data is used, does the plan slow down (and by how much)?
- Taxes and fees: Some plans price before taxes; others aim for “all-in” pricing.
- Unlimited add-ons: Hotspot behavior, tethering allowances, or whether hotspot is included or limited.
- International coverage rules: If you travel, check the exact international data allowance and any fair-use policy.
- Line type: Whether you’re switching an existing line, creating a new one, or changing the eSIM/SIM profile.
Quick self-check: Will $35 beat your current plan?
Do this simple comparison using your last 30–60 days of data usage:
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- Estimate your average monthly data (include any extra “overage” if your current plan charges for it).
- Compare that to what the $35 plan includes and whether it slows after a threshold.
- Factor in hotspot needs. If you tether often, confirm whether the $35 plan supports it and at what speed.
If you’re consistently near the included data threshold of your current plan, the $35 plan may reduce cost. If you regularly exceed thresholds, confirm what happens after the cutoff to avoid surprises.
Data-Only eSIMs: How They Work and Where They Fit
A data-only eSIM is a digital SIM that provides cellular data while omitting voice/SMS service tied to a phone number. In practice, that means your device uses data for apps, navigation, streaming, updates, and so on—without acting like a full phone line.
Common use cases
- Tablets (especially for learning, travel, or reading away from Wi‑Fi)
- Secondary devices where you don’t need calls/texts (or you use messaging apps)
- Travel setups that want data without moving your main SIM
- IoT-lite scenarios like mobile routers that accept eSIM (only if supported)
Device prerequisites for data-only eSIMs
Before you buy or activate a data-only eSIM, confirm your hardware can do eSIM and is supported for Fi service.
- Your device must support eSIM (not just Wi‑Fi).
- Your device must support the carrier profiles used by Fi (availability varies by model and region).
- Make sure you can scan a QR code or complete Fi’s activation flow from within the device.
- Keep cellular settings handy: you may need to set the data line as the default.
If you’re using an iPhone or iPad, verify the exact iOS/iPadOS version and that you’re signed into the device you plan to activate.
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The safest way to switch is from within Google Fi where the change is tied to your account line. Expect the plan to apply immediately or at the start of your next billing cycle depending on Fi’s current policy for that plan type.
Switching in the Google Fi app (Android)
- Open the Google Fi app.
- Go to Plans (or Manage Plan).
- Select the $35 plan option.
- Review the inclusions (data model, hotspot, any speed policy).
- Confirm the change and follow any identity/billing prompts.
Switching in a web browser
- Go to your Fi account in a browser and sign in.
- Open Manage plan or Plans.
- Choose the $35 plan and review the line changes.
- Confirm to apply the new plan and check your billing preview.
What to expect right after switching
After the switch, your account will refresh with the new plan and your line’s data policy. If your phone doesn’t behave as expected (for example, hotspot rules feel different), restart the device and toggle Airplane Mode once.
If it still doesn’t update, check for a carrier services update and confirm the line’s eSIM profile hasn’t changed unexpectedly.
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How to Activate a Data-Only eSIM on Google Fi
Activation flows typically involve: selecting a data-only eSIM, scanning a QR code or confirming an activation link, then setting the data line as default.
Because device UI varies between Android and iOS, follow the platform-specific steps below and then verify data connectivity.
Activation steps on an eSIM-capable phone
- On your phone, install or open the Google Fi app.
- Go to SIM or Devices (wording varies) and select Add eSIM or Activate.
- Choose the data-only eSIM option if presented.
- Complete the activation steps in the app, including scanning any QR code shown.
- After activation, open your device’s cellular settings and set the Fi data line as the default data connection.
Activation steps on an iPad/iPad cellular model (when supported)
- Confirm your iPad cellular model supports eSIM and is signed into the correct Apple ID.
- Open Settings > Cellular Data (or Mobile Data depending on iPadOS).
- Look for Add eSIM and/or use the Fi app activation flow if Fi provides it.
- Once the profile is installed, select the Fi line and enable it for data.
Data-only eSIM vs full-service SIM: behavior differences
With a data-only eSIM, you should expect:
- No phone calls tied to that line.
- No SMS for that line (your main number’s texts will not appear there).
- Cellular data should work for apps that use IP connectivity.
If you rely on SMS verification for banking or account logins, do those tests on the line that actually receives texts (often your main phone number).
Plan and eSIM Comparisons You Should Know
Two customers can pay the same monthly price and still have a totally different experience, because Fi plans vary by data behavior and because eSIM type (full-service vs data-only) affects device usability.
Google Fi $35 plan vs Fi Flexible vs Simply Unlimited
Use this table as a checklist, then confirm exact inclusions on your account page.
| Option | Best fit | What to verify |
|---|---|---|
| $35 plan | Predictable monthly billing | Included data amount, throttling behavior, hotspot rules, international terms |
| Fi Flexible | Low-to-moderate data users | Per-GB pricing, tax handling, maximum caps or thresholds |
| Simply Unlimited (plan name may vary) | Heavy data with simpler expectations | Speed policy after allotments and hotspot limits |
Full-service eSIM vs data-only eSIM
Pick full-service eSIM if you need calls and texts on that device. Pick data-only eSIM if you want an additional data connection for an iPad, tablet, or secondary device where calls/texts aren’t required.
Travel considerations (including international data)
If you travel, confirm whether the $35 plan’s international data terms match your itinerary. Some Fi plans include international data allowances that depend on destination and plan tier, so “unlimited” doesn’t always mean identical worldwide behavior.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Troubleshooting: When Switching Plans or Installing an eSIM Fails
Most issues fall into two buckets: account-side (your plan change didn’t fully apply) and device-side (your eSIM installed but cellular data isn’t using it).
eSIM activation errors
If activation fails in the Fi app, try these in order:
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- Restart the phone and retry the Fi activation flow.
- Confirm your device’s system time is correct (wrong time can break certificate/token checks).
- Check for iOS/macOS or Android OS updates that improve carrier profile handling (e.g., prompt for carrier services updates).
- Remove and re-add the eSIM profile only if Fi support indicates it’s safe for your account status.
No data after activation
If the eSIM shows “Active” but data doesn’t work:
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- Open cellular settings and set the Fi line as Default data.
- Toggle Airplane Mode on for 10 seconds, then off.
- Disable and re-enable the eSIM data line.
- Check Access Point Name (APN) isn’t overridden by custom settings (Fi usually manages APN automatically).
- Try a speed test or open a few data-heavy apps (streaming works better as a signal check than a static webpage).
Wi‑Fi calling / texts not behaving as expected
These issues often happen when people assume the data-only eSIM can do everything. Remember: data-only eSIMs generally won’t provide calls/SMS. For troubleshooting:
- Confirm whether the device is using the correct SIM line for calling/texts.
- If you need texts or verification codes, ensure the main number line is the one receiving SMS.
- Verify Wi‑Fi Calling settings on the line that actually supports it.
Device compatibility issues
If activation loops or the device refuses to add the eSIM profile, the device may not support the necessary eSIM band profiles or carrier policy for Fi in your region. Double-check the exact model and whether it’s an eSIM-enabled configuration (some variants differ even within the same product line).
Common Mistakes to Avoid
- Switching plans without checking hotspot rules. If you tether, confirm whether hotspot is supported and how it behaves after any data thresholds.
- Assuming data-only eSIMs provide SMS verification. They typically don’t.
- Leaving the wrong line as the default data connection after adding an eSIM—this is the fastest way to get “no internet.”
- Ignoring international terms if you travel. “$35” doesn’t guarantee the same international experience across destinations.
- Not restarting after the plan change. Carrier policy updates sometimes take a reboot to fully apply.
FAQs
Is the new $35 plan available to everyone?
Availability can depend on your account type, region, and eligibility rules tied to Fi’s current plan catalog. The most accurate answer is always what you see under Plans in the Google Fi app for your line.
Can I use a data-only eSIM on an iPad or tablet?
Only if the tablet model supports eSIM and Fi’s profile is supported for that device/region. Once installed, you’ll typically set it as the default cellular data connection.
Will my data-only eSIM work for calls and texts?
Usually no. Data-only eSIMs are intended for IP/data usage. For calling/texting, you’ll need a full-service line (or the main phone line that supports those features).
Why does my phone show the eSIM is active but apps won’t load?
Most commonly, the eSIM isn’t set as the default data line, the APN profile didn’t apply correctly, or the carrier network registration hasn’t completed. Try setting Default data, toggling Airplane Mode, and then restarting.
Does switching to the $35 plan require replacing my SIM?
Not necessarily. Plan changes are typically account-side. You may only need eSIM action if Fi instructs a profile refresh or if you’re changing between physical SIM and eSIM.
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Final Thoughts
Google Fi’s 10th birthday updates—especially the $35 plan and data-only eSIMs—make it easier to pay less for core connectivity and to add cellular data to secondary devices without moving your main number.
Use the checklist in this guide to confirm what the $35 price actually includes, then follow the activation steps carefully and validate your device’s default data settings. If something fails, work through the troubleshooting sequence to get back online fast.
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