The best unlimited cell phone plans in 2026

Every major US carrier advertises "unlimited" plans. None of them are truly unlimited. After a soft cap — usually 30 to 100 gigabytes per month — your speeds get deprioritized in congested areas. Some plans throttle to 600 kbps; the worst drop to 128 kbps, functionally useless for streaming or video calls. The differences between unlimited plans live in this fine print.

We tested 12 popular unlimited plans across three cities over four months, tracked real-world deprioritization behavior at peak hours, ported numbers between carriers to verify actual switching costs, and combed through every Schedule A and terms-of-service document to surface the fees that do not appear on the marketing pages. Here is what we found and what to buy.

How we tested unlimited plans

We measured five things on every plan we evaluated: median 5G download speeds during off-peak and peak hours, premium-data caps (the threshold at which speeds get reduced), hotspot allowances and post-cap behavior, included international coverage, and total monthly cost including taxes and fees by state.

Network testing used the same iPhone 16 Pro across all carriers, with eSIM swapping to control for hardware variables. Speeds were measured at three locations per city — a downtown business district at lunch hour, a residential neighborhood at 8pm, and an outdoor stadium during a sold-out event. Each measurement was the median of 10 consecutive runs.

Cost calculations include line-access charges, regulatory recovery fees, federal Universal Service Fund surcharges, state and local taxes, and any "convenience" or activation fees the carrier disclosed only after sign-up. The advertised price is rarely the bill price; we report both.

Unlimited plans at a glance

A few quick notes on the table: T-Mobile Go5G Plus drops to $45/line on a four-line plan, so the per-user cost is dramatically lower at scale. US Mobile lets you choose Verizon or T-Mobile network at signup. Google Fi's international data caps at 256 kbps abroad on the Simply Unlimited tier — usable for maps and messaging, not for video.

Our picks

Best overall: T-Mobile Go5G Plus

Go5G Plus runs $90/month for one line, dropping to $45/line for four lines. It includes 50 GB of premium data before deprioritization (most plans cap at 30 GB), unlimited high-speed hotspot for the first 50 GB, Netflix Standard (a $15.49/month value), Apple TV+, and data and texting in over 215 countries.

In our network testing across three cities, T-Mobile's mid-band 5G consistently delivered the fastest peak-hour speeds — median 287 Mbps in Chicago, 312 Mbps in Austin, 244 Mbps in Seattle during 6-8pm windows. Rural performance lags Verizon but has improved measurably since 2024.

Best for: heavy mobile data users in urban or suburban areas, families looking to consolidate streaming subscriptions into their phone bill, and anyone who travels internationally even occasionally. The bundled Netflix and Apple TV+ effectively pay for the price premium over budget MVNOs if you would otherwise subscribe separately.

Watch out for: $35 per-line activation fee, $5/month device protection that auto-enrolls (cancel within the first 30 days), and the "AutoPay & paperless" $5/line discount requires a debit card or bank account — credit cards lose the discount as of 2024.

Best budget: US Mobile Unlimited Premium

US Mobile Unlimited Premium is $44/month with 100 GB of premium data before deprioritization — more than double most competitors. You choose the underlying network (Verizon's "Warp" or T-Mobile's "GSMA") at signup and can switch later. Multi-line family pricing is among the lowest in the industry, dropping to $25/line for four lines.

The trade-offs: customer service is online-first (no retail stores), no premium streaming bundles, and the account interface is less polished than the big three. International calling is metered pay-as-you-go rather than included. For users comfortable managing their account online and not relying on bundled perks, the savings vs T-Mobile or Verizon postpaid are dramatic — roughly $500/year on a four-line household.

Best for: technically comfortable users who want maximum premium data at the lowest sustainable price, families willing to swap streaming convenience for cash savings, and anyone who needs network flexibility (Verizon coverage in some places, T-Mobile in others).

Best Verizon coverage at a reasonable price: Visible+

Visible+ at $45/month uses Verizon's towers with reduced deprioritization compared to standard Visible. Includes 50 GB of premium data, data and calling in Canada and Mexico, and 10 GB of premium hotspot per month.

Visible is owned by Verizon and runs on the same physical network, so coverage maps are identical to Verizon postpaid — including the rural reach where Verizon has historically beaten T-Mobile. Deprioritization on Visible+ kicks in only when the local tower is congested AND you have exceeded 50 GB; in our testing in low-congestion areas, post-cap speeds stayed within 80% of pre-cap.

Best for: users in rural or mountainous areas where Verizon's LTE 700 MHz band reaches farther than T-Mobile or AT&T, and anyone who has tried T-Mobile or AT&T and found coverage gaps.

Best for international travelers: Google Fi Simply Unlimited

Google Fi Simply Unlimited is $65/month and includes 50 GB of premium data plus automatic data and texting in over 200 countries with no add-on fees, activation steps, or roaming windows. Drop into Heathrow, Charles de Gaulle, or Narita and your data works the moment your phone catches signal.

International data on the Simply Unlimited tier is capped at 256 kbps abroad — enough for Maps, iMessage, WhatsApp, and basic web browsing, but not for streaming. The Pro plan ($85/month) lifts the cap to 50 GB at full speed internationally. For a traveler who takes three or more international trips per year, the convenience of not buying SIMs or arranging roaming packs is worth the price premium over US-only carriers.

Best for: international travelers (especially business travelers and remote workers), households with one primary line that needs global coverage, and users who already live in the Google ecosystem.

Best for specific scenarios

Best unlimited plan with hotspot

If your primary use case is tethering a laptop while traveling or working from variable locations, the headline data cap matters less than the hotspot allowance. T-Mobile Go5G Plus (50 GB high-speed hotspot) and Verizon Unlimited Plus (30 GB) lead this category. Visible+ at 10 GB is enough for occasional tethering, not daily remote work. Mint Mobile's 10 GB hotspot caps at 5G speeds before throttling to 600 kbps — usable for email but not video calls.

Best unlimited plan for family of 4

Family pricing inverts the per-line math compared to single-line plans. T-Mobile Go5G Plus drops to $45/line on four lines ($180/month total). US Mobile Unlimited Premium is $25/line on four lines ($100/month). Verizon Unlimited Plus is $55/line on four lines ($220/month). For most four-person households, T-Mobile Go5G Plus delivers the best balance of price, perks, and coverage. For maximum cost savings without bundled streaming, US Mobile.

Best unlimited plan for occasional users

If you primarily use Wi-Fi at home and work and only need cellular as backup, an unlimited plan is overkill. Visible (without the plus) at $25/month, T-Mobile Essentials Saver at $30/month, or Mint Mobile 5 GB at $15/month (annual prepay) all save substantial money vs unlimited. Right-size before paying for capacity you do not use.

What "unlimited" actually means

Premium data: high-speed data you receive before deprioritization. Most plans cap this between 30 GB and 100 GB per line per month. Speeds during premium data are typically 5G or LTE at full carrier speeds (100-500 Mbps in good areas).

Deprioritization: when you exceed the premium data cap, your data still works but your traffic gets lower priority than postpaid customers and paying premium-tier users on the same network. In congested areas (downtowns at lunch, stadiums during events, airports), speeds can drop 60-90% compared to premium data. In uncongested areas, deprioritization may be invisible — your speeds remain similar to premium because the tower has spare capacity.

Throttling: a harder cap. Some plans throttle to 128 kbps or 600 kbps after a certain amount, making the connection genuinely unusable for streaming, video calls, or large downloads. T-Mobile's Essentials and most consumer prepaid plans use throttling rather than deprioritization. Read the fine print before assuming "unlimited" means anything close to your home internet experience.

Network priority tier: even before you hit the premium-data cap, your traffic may sit below postpaid customers on the same network. Most MVNOs (Mint, Visible, US Mobile, Cricket) sit at deprioritized tiers permanently. In congested locations during peak hours, postpaid customers get speeds first.

Hidden fees and fine print to watch

Activation fee: $25-50 per line, charged once at signup. T-Mobile and Verizon waive this for autopay signups during promotional windows; AT&T applies it consistently. US Mobile and Mint do not charge activation fees.

Regulatory recovery fees: $1.50-3.50/month per line. Buried in the bill detail page; carriers describe them as "cost recovery" for federal and state telecom regulation. They are essentially a profit margin add-on; you cannot opt out.

State and local taxes: vary from 1% to 27% of the base service price depending on your state and city. New York, Illinois, Washington, and Pennsylvania run on the high end. Carriers display pre-tax pricing in marketing.

Device protection auto-enrollment: T-Mobile and AT&T frequently auto-enroll new customers into device protection plans at $7-18/month per line. The first 30 days are cancellable; many customers do not notice and pay for months. Check your bill within 30 days of activation.

Autopay discount restrictions: as of 2024, T-Mobile and AT&T only honor the autopay discount on debit cards and bank accounts, not credit cards. The $5-10/line/month discount is real but the payment method requirement is buried in the fine print.

Plans we tested but do not recommend

Verizon Welcome Unlimited ($65/month): no premium data cap, meaning every gigabyte is deprioritized. In our peak-hour testing, speeds dropped to 1-3 Mbps in congested areas. Acceptable for browsing, painful for video. Verizon Unlimited Plus at $90 is the minimum tier worth considering on Verizon postpaid.

AT&T Unlimited Starter ($65/month): 5 GB high-speed hotspot, 480p video streaming cap, and lower priority than Premium Pro. The math works only for users who would otherwise pay for AT&T Premium Pro; if you are open to switching networks, T-Mobile Go5G Plus delivers better speeds at the same price.

Spectrum Mobile Unlimited Plus ($45/month): runs on Verizon's network but only if you also subscribe to Spectrum home internet (~$50/month). The bundle savings are real but lock you into Spectrum for both services. Standalone Verizon-network plans (Visible+, US Mobile Unlimited on Verizon) are cheaper and more flexible.

Boost Mobile Unlimited Plus ($60/month): Boost runs on its own network plus T-Mobile and AT&T as backup, but the network handoff is unreliable in our testing — dropped calls and delayed messages happen more than on any other carrier we tested. Cheaper but not worth the friction.

How to switch to an unlimited plan

Number porting takes 2-24 hours for most carriers in 2026. You can keep your existing phone number when moving to any of the plans above. Do not cancel your current service first — request the port from your new carrier and let the port complete automatically. Cancelling early can lock the number temporarily, delaying the port by days.

What you need from your current carrier: your account number (sometimes called "account PIN" or "porting PIN"), the account holder name as it appears on your bill, and the billing zip code. Verizon and AT&T require you to specifically generate a port-out PIN from your account dashboard or by calling customer service; T-Mobile sends one via SMS on request.

Phone compatibility: any unlocked GSM phone purchased in the last 5 years works on all the plans here. Phones bought from a carrier may be locked to that carrier for 60-180 days after purchase. Call the original carrier to request unlocking — federal law requires they unlock after the device is paid off.

Timing the switch: port at the start of your current billing cycle when possible. Most carriers do not prorate the final month, so porting on day 1 versus day 28 has the same net cost. Save your activation fee on the new carrier by signing up during a promotional window — major carriers run "no activation fee" promotions multiple times per year.

When you do not need unlimited at all

If your household uses less than 20 GB per line per month — which describes most users with reliable home Wi-Fi — an unlimited plan is overkill. The carrier app or your phone's data usage screen will tell you your actual monthly average. Check three months before assuming you need unlimited.

Tiered plans worth considering: Visible at $25/month (unlimited but lower priority, fine for moderate users), T-Mobile Essentials Saver at $25-30/line, Mint Mobile 15 GB at $20/month (annual prepay), or US Mobile Pooled Data plans that share a single bucket across multiple lines.

The biggest cost-cutter for most US households is right-sizing rather than switching carriers. Audit your actual usage, then size the plan to your real consumption with maybe 20% headroom. Unlimited is convenient, but most users pay $300-500/year extra for capacity they never touch.