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4G/5G data
mins
texts
/mo
Same coverage - massive savings!YOU SAVE:
T-Mobile
Magenta - $70/mo
$840/yr
AT&T
Unlimited Extra - $75/mo
$900/yr
Verizon
Play More Unlimited - $80/mo
$960/yr
$0$17.5$35$52.5$70
Monthly cost
Average monthly data usage is only between 3-5GB
Avg. user rating
Benefits

    Best Unlimited Data SIM Card

    How much is a SIM card with unlimited data?

    Big wireless coverage at small prices: switch & save up to $600 a year
    99% coverage4G & 5G speedBring your phoneNo contracts
    Boost Mobile Sim Card - Vertical
    Unltd4G/5G Data
    $25per month
    Powered by:
    Tello Sim Card - Vertical
    Unltd4G/5G Data
    $29per month
    Powered by:
    Mint Mobile Sim Card - Vertical
    Unltd4G/5G Data
    $30*per month
    Powered by:
    See Deal* 3 Months FREE: $90 for 6 mths service
    Visible Sim Card - Vertical
    Unltd4G/5G Data
    $15*per month
    Powered by:
    See Deal* $15 Off for 3 Mths - Promo code: 15OFF
    US Mobile Sim Card - Vertical
    Unltd4G/5G Data
    $35per month
    Powered by:
    See Deal* FREE 10-Day Trial
    Lycamobile Sim Card - Vertical
    Unltd4G/5G Data
    $20*per month
    Powered by:
    See Deal* Only $60 for 3 Months Service
    Visible Sim Card - Vertical
    Unltd4G/5G Data
    $45per month
    Powered by:
    PureTalk Sim Card - Vertical
    Unltd4G/5G Data
    $42*per month
    Powered by:
    See Deal* 25% Off for 3 Months
    Ultra Mobile Sim Card - Vertical
    Unltd4G/5G Data
    $39*per month
    Powered by:
    See Deal* 20% Off First Month
    Affinity Cellular Sim Card - Vertical
    Unltd4G/5G Data
    $45*per month
    Powered by:
    See Deal* $10 off for 3 months
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    Disclaimer: MoneySavingPro is a free price comparison service but we do not provide service directly. We do our best to keep all the information up to date but there may be some discrepancies between the price you pay.

    Big savings, no compromises
    Nationwide CoveragePowered by the major networks
    Bring your own phoneKeep your existing phone and number
    4G LTE data speedsSame fast speeds as the big guys
    No contractsFlexible and commitment-free
    Customize your planOnly pay for what you use
    Buy onlineNo need to visit a store
    Best Unlimited Data SIM Card Hero
    Same coverage, massive savings!
    Stop the Unlimited Data Plan Rip Off!
    CarrierNetworkDataPrice Annual 
    VerizonVerizon 4G & 5GUnlimited*$80/mo$960/yr
    US MobileVerizon 4G & 5G5GB$15/mo$180/yr
    *Avg. data usage only 3-5GBSavings$65/moSavings$780/yr
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    Switching & saving is simple
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    Customize your planDon't pay for data you don't use
    2
    Bring your own phoneKeep your phone & number
    3
    Order SIM card onlineInsert your new SIM card & activate

    Cheapest unlimited data SIM card in 2022

    By Rob Webber - Last updated on

    Looking for unlimited data at an affordable price? You'll find the best value deals with MVNOs.

    Mobile Virtual Network Operators are low-cost carriers that are powered by the same major networks but offer half-price plans. You'll find all the same features including unlimited data from carriers like Mint Mobile and Tello.

    Quickly becoming the most popular way to get unlimited data at a budget-friendly price, we've selected the best MVNOs below.

    Check Carrier Coverage

    Best T-Mobile SIM card with unlimited data

    Mint Mobileunlimited data plan* 3 Months FREE: $90 for 6 mths service

    Unlimitedmins

    Unlimitedtexts

    Unlimited

    4G/5G data

    $30/mo*

    Powered by: T-Mobile

    T-Mobile unlimited plans

    PlanDataMonthly PriceAnnual Cost
    T-Mobile MagentaUnlimited$70$840
    T-Mobile Magenta MaxUnlimited$85$1,020

    T-Mobile vs Mint Mobile comparison

    Keep your T-Mobile phone, number & coverage: Save $480 per year

    CarrierNetwork Coverage4G/5G DataPriceAnnual Cost
    T-MobileT-Mobile 4G & 5GUnltd*$70/mo$840/yr
    Mint MobileT-Mobile 4G & 5GUnlimited$30/mo$360/yr
    *Don't waste money on unlimited data - Avg. data usage is only 3-5GBSavings$40/mo$480/yr

    Compare: T-Mobile unlimited SIM cards


    Best Verizon SIM card with unlimited data

    Tingunlimited data plan

    Unlimitedmins

    Unlimitedtexts

    Unlimited

    4G/5G data

    $45/mo

    Powered by: T-Mobile & Verizon

    Verizon unlimited plans

    PlanDataMonthly PriceAnnual Cost
    Verizon Play More UnlimitedUnlimited$80$960
    Verizon Do More UnlimitedUnlimited$80$960
    Verizon Get More UnlimitedUnlimited$90$1,080

    Verizon vs Ting comparison

    Keep your Verizon phone, number & coverage: Save $420 per year

    CarrierNetwork Coverage4G/5G DataPriceAnnual Cost
    VerizonVerizon 4G & 5GUnltd*$80/mo$960/yr
    TingVerizon 4G & 5GUnlimited$45/mo$540/yr
    *Don't waste money on unlimited data - Avg. data usage is only 3-5GBSavings$35/mo$420/yr

    Compare: Verizon unlimited SIM cards


    Best AT&T SIM card with unlimited data

    PureTalkunlimited data plan* 25% Off for 3 Months

    Unlimitedmins

    Unlimitedtexts

    Unlimited

    4G/5G data

    $42/mo*

    $55/mo

    Powered by: AT&T

    AT&T unlimited plans

    PlanDataMonthly PriceAnnual Cost
    AT&T Unlimited ExtraUnlimited$75$900
    AT&T Unlimited EliteUnlimited$85$1,020

    AT&T vs PureTalk comparison

    Keep your AT&T phone, number & coverage: Save $279 per year

    CarrierNetwork Coverage4G/5G DataPriceAnnual Cost
    AT&TAT&T 4G & 5GUnltd*$75/mo$900/yr
    PureTalkAT&T 4G & 5GUnlimited$55/mo$621/yr
    *Don't waste money on unlimited data - Avg. data usage is only 3-5GBSavings$20/mo$279/yr

    Compare: AT&T unlimited SIM cards


    Unlimited SIM card benefits

    MVNOs - or Mobile Virtual Network Operator - are the best route to go down for cheap cell phone plans. By hopping onto one of the major networks prepaid SIMs offer the same great service you trust but at half the cost. You get greater flexibility, can keep your phone and number and no long contracts to keep you tied down.

    • Same great nationwide coverage: These cell phone carriers operate on the very same networks as the big three carriers.
    • Much lower prices: Save up to $600 per year on your cell phone plan. Why are MVNOs so much cheaper? They don't have the huge overhead and advertising costs the big guys do.
    • No contracts: Don't get trapped into a two-year agreement. Switch carriers when you decide to with a no contract phone plan.
    • Same cell phone service: Just because you're paying less, that doesn't mean you have to scrimp on features. Plans with unlimited everything are easy to find from these prepaid carriers. Usually, a low-cost carrier plan comes with unlimited talk and text as standard, high-speed data, and even mobile hotspot data features.
    • Keep your phone and number: You can bring your own phone and keep your phone number. No need to sign up for pricey device payments.
    • Customize your plan: You decide how much data you need. Choose to pay as you go, opt for unlimited or no data, minimal minutes, or unlimited talk text and data. Unlimited data plans come at a much better price with an alternative carrier. Pick the plan options that fit your budget - not the one your carrier thinks you need.
    • Great customer support: Smaller mobile providers are known for their attention to their customers. Stop feeling like an anonymous number getting lost in the crowd! Check out our carrier user reviews before switching.

    Best unlimited SIM cards

    Best prepaid unlimited data SIM card

    See Deal
    Mint Mobile SIM Card - Mint Mobile unlimited data SIM kitMint Mobile SIM Card - Mint Mobile unlimited data SIM kit
    Minutes
    Unlimited
    Texts
    Unlimited
    Data
    Unlimited
    Price
    $30** 3 Months FREE: $90 for 6 mths service
    Powered by:
    See Deal

    This Mint Mobile SIM kit includes unlimited mins, unlimited texts and unlimited data for $30 for 3 months of wireless service. Mint Mobile plans offer wireless coverage on the T-Mobile 5G and 4G LTE network. To learn more about why this is one of the best cell phone plans, check out MoneySavingPro's Mint Mobile review

    Plans
    PlanDataPriceView plan

    Mint Mobile 4GB SIM card

    4GB

    $15*

    * 3 Months FREE: $45 for 6 mths service
    View Plan

    Mint Mobile 10GB SIM card

    10GB

    $20*

    * 3 Months FREE: $60 for 6 mths service
    View Plan

    Mint Mobile 15GB SIM card

    15GB

    $25*

    * 3 Months FREE: $75 for 6 mths service
    View Plan

    Mint Mobile Unlimited SIM card

    Unlimited

    $30*

    * 3 Months FREE: $90 for 6 mths service
    View Plan
    Review
    4.5

    Pros

    • Offers the latest phones with 0% finance

    • Prepay months in bulk for more savings

    • Reliable network coverage

    • Works with most GSM phones

    Cons

    • No family plans

    • Minimum 3 months

    Benefits

    • Operates on the nationwide T-Mobile network

    • 7-day money-back guarantee

    • Prepaid - no contract, credit check, or activation fee

    • Bring your phone or buy a Mint Mobile device

    • Keep your phone number

    • Using your phone as a mobile hotspot is permitted

    • Free calling to Canada & Mexico, affordable rates to 160+ other locations

    • Flat-rate international roaming available as an add-on feature

    • Customer service by phone on weekdays and weekends, 24/7 by virtual chat

    Best unlimited data SIM card for families

    See Deal
    Tello SIM Card - Tello unlimited data SIM kitTello SIM Card - Tello unlimited data SIM kit
    Minutes
    Unlimited
    Texts
    Unlimited
    Data
    Unlimited
    Price
    $29
    Powered by:
    See Deal

    This Tello SIM kit includes unlimited mins, unlimited texts and unlimited data for $29 for 1 month of wireless service. Tello plans offer wireless coverage on the T-Mobile 5G and 4G LTE network. To learn more about why this is one of the best cell phone plans, check out MoneySavingPro's Tello review

    Plans
    PlanDataPriceView plan

    Tello 0GB SIM card

    0GB

    $8

    View Plan

    Tello 5GB SIM card

    5GB

    $10*

    * $9 Off First Month
    View Plan

    Tello 1GB SIM card

    1GB

    $10

    View Plan

    Tello 2GB SIM card

    2GB

    $14

    View Plan

    Tello 10GB SIM card

    10GB

    $24

    View Plan

    Tello Unlimited SIM card

    Unlimited

    $29

    View Plan
    Review
    5

    Pros

    • No contract. No bulk buying.

    • 24/7 friendly customer support

    • 4G LTE/5G nationwide coverage

    • Free Hotspot & Wi-Fi Calling

    • Free international calls to 60+ countries

    Cons

    • No roaming

    • Coverage in rural areas

    Benefits

    • Service on the nationwide T-Mobile network

    • Money-back guarantee on phones (no refunds on plans)

    • Prepaid - no contract, credit check, or activation fee

    • Bring your own phone or choose from a modest selection of new or refurbished devices

    • Keep your current phone number

    • Use of your plan data as a mobile hotspot through your phone is allowed

    • Use your minutes to call Canada, China, and Mexico

    • Minutes to other countries available as add-on

    • 24/7 customer service

    Best 5G unlimited data SIM card

    See Deal
    US Mobile SIM Card - US Mobile unlimited data basic SIM kitUS Mobile SIM Card - US Mobile unlimited data basic SIM kit
    Minutes
    Unlimited
    Texts
    Unlimited
    Data
    Unlimited
    Price
    $35* FREE 10-Day Trial
    Powered by:
    See Deal

    This US Mobile SIM kit includes unlimited mins, unlimited texts and unlimited data for $35 for 1 month of wireless service. US Mobile plans offer wireless coverage on the Verizon & T-Mobile 5G and 4G LTE networks. To learn more about why this is one of the best cell phone plans, check out MoneySavingPro's US Mobile review

    Plans
    PlanDataPriceView plan

    US Mobile 500MB SIM card

    500MB

    $5

    View Plan

    US Mobile 0GB SIM card

    0GB

    $8

    View Plan

    US Mobile 2GB SIM card

    2GB

    $12

    View Plan

    US Mobile 5GB SIM card

    5GB

    $15

    View Plan

    US Mobile 15GB SIM card

    15GB

    $20

    View Plan

    US Mobile 25GB SIM card

    25GB

    $25

    View Plan

    US Mobile Unlimited SIM card

    Unlimited

    $35

    View Plan

    US Mobile Unlimited SIM card

    Unlimited

    $45

    View Plan

    * FREE 10-Day Trial

    Review
    4.5

    Pros

    • Flexible, no contract plans

    • 24/7 customer service

    • 5G coverage available

    Cons

    • No international calling

    • Phone selection

    Benefits

    • Coverage on either the T-Mobile or Verizon network

    • Risk-free trial: Full refund within 14 days or before 1000 talk, text, or MB's is used

    • Prepaid - no contract, credit check, or activation fee

    • Bring your own GSM or CDMA phone or choose from a small selection of phones for sale

    • Keep your own phone number

    • Mobile hotspot use available as add-on option with unlimited data plans

    • International roaming plans available with eSIMs

    • Add-ons available for talk, text, and data, with rollover

    • 24/7 customer support

    Best unlimited data SIM card for kids

    See Deal
    PureTalk SIM Card - PureTalk unlimited data SIM kitPureTalk SIM Card - PureTalk unlimited data SIM kit
    Minutes
    Unlimited
    Texts
    Unlimited
    Data
    Unlimited
    Price
    $42** 25% Off for 3 Months
    Powered by:
    See Deal

    This PureTalk SIM kit includes unlimited mins, unlimited texts and unlimited data for $42 for 1 month of wireless service. PureTalk plans offer wireless coverage on the AT&T 5G and 4G LTE network. To learn more about why this is one of the best cell phone plans, check out MoneySavingPro's PureTalk review

    Plans
    PlanDataPriceView plan

    PureTalk 2GB SIM card

    2GB

    $15*

    * 25% Off for 3 Months
    View Plan

    PureTalk 4GB SIM card

    4GB

    $19*

    * 25% Off for 3 Months
    View Plan

    PureTalk 6GB SIM card

    6GB

    $22*

    * 25% Off for 3 Months
    View Plan

    PureTalk 10GB SIM card

    10GB

    $26*

    * 25% Off for 3 Months
    View Plan

    PureTalk 20GB SIM card

    20GB

    $34*

    * 25% Off for 3 Months
    View Plan

    PureTalk Unlimited SIM card

    Unlimited

    $42*

    * 25% Off for 3 Months
    View Plan
    Review
    3.5

    Pros

    • 5G & 4G LTE coverage

    • 30-day risk-free guarantee

    • Multi-line discounts

    • 0% finance for new phones

    • US-based customer service

    • Supports eSIM

    Cons

    • There are cheaper plans out there

    • May slow speeds at busy times

    Benefits

    • Operates on the AT&T 5G & 4G LTE network

    • No contract, credit check, or activation fee

    • 30-day risk-free guarantee on plans

    • 14-day return policy on all new devices

    • Bring your own phone

    • Keep your phone number

    • Mobile hotspot/tethering permitted

    • International calling available as an add-on calling card

    • US-based customer support

    • Supports eSIM

    Best unlimited data SIM card for one

    See Deal
    Boost Mobile SIM Card - Boost Mobile unlimited data SIM kitBoost Mobile SIM Card - Boost Mobile unlimited data SIM kit
    Minutes
    Unlimited
    Texts
    Unlimited
    Data
    Unlimited
    Price
    $25
    Powered by:
    See Deal

    This Boost Mobile SIM kit includes unlimited mins, unlimited texts and unlimited data for $25 for 1 month of wireless service. Boost Mobile plans offer wireless coverage on the AT&T & T-Mobile 5G and 4G LTE networks. To learn more about why this is one of the best cell phone plans, check out MoneySavingPro's Boost Mobile review

    Plans
    PlanDataPriceView plan

    Boost Mobile 5GB SIM card

    5GB

    $5*

    * 66% Off for 3 Months
    View Plan

    Boost Mobile 1GB SIM card

    1GB

    $8*

    * $100 for 1 year service
    View Plan

    Boost Mobile 15GB SIM card

    15GB

    $20*

    * $240 for 1 year service
    View Plan

    Boost Mobile Unlimited SIM card

    Unlimited

    $25

    View Plan
    Review
    4.5

    Pros

    • Nationwide coverage on AT&T & T-Mobile

    • 5G & 4G LTE data speeds

    • Buy online and no credit checks

    • Bring your own phone

    • Cheapest unlimited data plan

    Cons

    • No data only plans

    Benefits

    • Owned by Dish and runs on T-Mobile's nationwide network

    • Prepaid service - no contract, credit check, or extra fees

    • Bring your own phone (GSM compatible) or choose from a wide selection of new phones

    • Mobile hotspot allowance with all plans

    • International service and roaming available as add-on packs

    • Customer support available by phone - 4am - 8pm PST Monday to Friday, 4am - 7pm weekends

    Unlimited SIM card features

    • 4G LTE data speeds: Since MVNOs operate on the big three cellular networks you'll pay less without sacrificing speed. More and more are adding 5G coverage all the time so you can expect high-speed data.
    • Unlimited talk and text messaging: Finding a new unlimited plan has never been easier. Virtually all small carriers include unlimited text and calls in their plan options. Compare cheap talk and text plans with or without data.
    • International calls to Canada and Mexico: International calling is a must for many people. Luckily MVNOs offer some of the best international phone plans, with free calling to certain countries like Canada and Mexico, and discounted rates on others.
    • Multiline discounts: Low-cost carriers also offer some of the cheapest family cell phone plans, with multi-line discounts.
    • Wi-Fi calling: This feature is handy when you're out of your service area, allowing you to make calls over the internet instead of on your cellular connection.
    • Tethering/hotspot data: Many low-cost carriers allow you to use your phone as a hotspot. Pick an MVNO with the best mobile hotspot plans so you can share your mobile hotspot data with other devices.
    • HD video streaming: Just like the big guys, some MVNOs offer HD video streaming and some don't. Read the fine print to find the option you want.

    Cheapest unlimited data SIM cards

    CarrierDataNetworkPrice
    Boost Mobile unlimited data SIM kitUnltdAT&T & T-Mobile$25
    Tello unlimited data SIM kitUnltdT-Mobile$29
    Mint Mobile unlimited data SIM kitUnltdT-Mobile$30** 3 Months FREE: $90 for 6 mths service
    Visible unlimited data SIM kitUnltdVerizon$15** $15 Off for 3 Mths - Promo code: 15OFF
    US Mobile unlimited data basic SIM kitUnltdVerizon & T-Mobile$35* FREE 10-Day Trial

    Unlimited data SIM card FAQs

    Can I buy an unlimited data SIM card?

    Yes, you'll find a large selection of data only sim cards with MVNOs. These plans are ideal for mobile hotspot devices and tablets so you can get an internet connection when you're away from home.

    Which SIM card is best for unlimited data?

    It comes down to your individual needs and budget, but carriers like Red Pocket Mobile and Tello offer data only plans for as little as $10 a month depending on the amount of data you're looking for.


    Recap

    MVNOs offer a great selection of plans for all cell phone needs and with cheap prices.

    But do you really need unlimited data? The average amount of data used each month is between 3-5GB, so you could save even more money by opting for a set data plan. Plus unlimited never really means unlimited. If you check the small print you'll have a data allowance that once hit your speeds will be slowed significantly.

    You can estimate your monthly data usage with our free tool and check out more low-cost carrier plans with set data options.

    Rob Webber
    Rob Webber

    Rob has 15+ years experience in the US and UK running price comparison sites for cell phone plans, smartphone deals, TV, and internet. He loves thinking outside of the box to build tools that empower consumers to make more informed decisions.