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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$20$40$60$80
Monthly cost
Average monthly data usage is only between 3-5GB
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Benefits

    Best Free SIM Card

    How to get a free SIM card

    99% coverage4G & 5G speedBring your phoneNo contracts
    Big wireless coverage at small prices: switch & save up to $600 a year
    Tello Sim Card - Vertical
    1GB4G/5G Data
    $10per month
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    Mint Mobile Sim Card - Vertical
    4GB4G/5G Data
    $15*per month
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    See Deal* Only $45 for 3 Months Service
    US Mobile Sim Card - Vertical
    12GB4G/5G Data
    $20per month
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    See Deal* Free 10 Day Trial
    Mint Mobile Sim Card - Vertical
    15GB4G/5G Data
    $25*per month
    Powered by:
    See Deal* Only $75 for 3 Months Service
    Tello Sim Card - Vertical
    Unltd4G/5G Data
    $29per month
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    Boost Mobile Sim Card - Vertical
    5GB4G/5G Data
    $5*per month
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    See Deal* 66% Off for 3 Months
    Reach Mobile Sim Card - Vertical
    2GB4G/5G Data
    $10*per month
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    See Deal* $10 Off First 3 Months
    Twigby Sim Card - Vertical
    7GB4G/5G Data
    $15*per month
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    See Deal* $10 Off for 3 Months
    Mint Mobile Sim Card - Vertical
    10GB4G/5G Data
    $20*per month
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    See Deal* Only $60 for 3 Months Service
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    $30per month
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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
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    No contractsFlexible and commitment-free
    Customize your planOnly pay for what you use
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    Best Free 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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    Bring your own phoneKeep your phone & number
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    Order SIM card onlineInsert your new SIM card & activate

    Free SIM card starter kit

    By Rob Webber - Last updated on

    Looking for a free SIM card? The cheapest cell phone plans with a SIM card are with low-cost carriers, also known as MVNOs.

    Mobile Virtual Network Operators are powered by the three major US networks, so there's no compromise on your coverage, but their plans are half the cost.

    There's also no commitment. With no contracts or credit checks you're free to cancel without the worry of an early termination fee.

    MVNOs have a variety of plans for all needs and budgets and we've broken down the options to help you find your perfect deal below.

    Check Carrier Coverage

    Best free SIM card on T-Mobile

    Mint Mobile4GB plan* Only $45 for 3 Months Service

    Unlimitedmins

    Unlimitedtexts

    4GB

    4G/5G data

    $15/mo*

    $3.75 per GB

    Powered by: T-Mobile

    T-Mobile vs Mint Mobile comparison

    Keep your T-Mobile phone, number & coverage: Save $660 per year

    CarrierNetwork Coverage4G/5G DataPriceAnnual Cost
    T-MobileT-Mobile 4G & 5GUnltd*$70/mo$840/yr
    Mint MobileT-Mobile 4G & 5G4GB$15/mo$180/yr
    *Don't waste money on unlimited data - Avg. data usage is only 3-5GBSavings$55/mo$660/yr

    Compare: T-Mobile SIM cards


    Best free SIM card on Verizon

    US Mobile5GB plan* Free 10 Day Trial

    Unlimitedmins

    Unlimitedtexts

    5GB

    4G/5G data

    $15/mo

    $3 per GB

    Powered by: Verizon & T-Mobile

    Verizon vs US Mobile comparison

    Keep your Verizon phone, number & coverage: Save $780 per year

    CarrierNetwork Coverage4G/5G DataPriceAnnual Cost
    VerizonVerizon 4G & 5GUnltd*$80/mo$960/yr
    US MobileVerizon 4G & 5G5GB$15/mo$180/yr
    *Don't waste money on unlimited data - Avg. data usage is only 3-5GBSavings$65/mo$780/yr

    Compare: Verizon SIM cards


    Best free SIM card on AT&T

    Good2Go Mobile3GB plan* 50% Off for 3 Months

    Unlimitedmins

    Unlimitedtexts

    3GB

    4G/5G data

    $10/mo*

    $20/mo

    $6.67 per GB

    Powered by: AT&T & T-Mobile

    AT&T vs Good2Go Mobile comparison

    Keep your AT&T phone, number & coverage: Save $690 per year

    CarrierNetwork Coverage4G/5G DataPriceAnnual Cost
    AT&TAT&T 4G & 5GUnltd*$75/mo$900/yr
    Good2Go MobileAT&T 4G & 5G3GB$20/mo$210/yr
    *Don't waste money on unlimited data - Avg. data usage is only 3-5GBSavings$55/mo$690/yr

    Compare: AT&T SIM cards


    Free 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.

    The best thing? No catch. As MVNO's are online carriers they don't have the overhead costs of a physical store. As long as you are comfortable dealing with everything online. We think this is a win-win.

    • National coverage from big networks
    • Fast 4G LTE and 5G data speeds
    • Keep your existing phone and number
    • Customize your plan to your data usage - most of us use 3GB per month
    • Simple online signup, switching is seamless
    • No big monthly bills
    • No unnecessary phone upgrades to tie you down
    • No annoying commission-hungry salespeople
    • No hidden fees or confusing contracts
    • No overpaying for unlimited data you don't need

    Best free SIM card with phone service

    Best free SIM card for prepaid

    See Deal
    US Mobile SIM Card - US Mobile 5GB SIM kitUS Mobile SIM Card - US Mobile 5GB SIM kit
    Minutes
    Unlimited
    Texts
    Unlimited
    Data
    5GB
    Price
    $15* Free 10 Day Trial
    Powered by:
    See Deal

    This US Mobile SIM kit includes unlimited mins, unlimited texts and 5GB data for $15 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

    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 free SIM card for unlimited

    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** Only $90 for 3 Months 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*

    * Only $45 for 3 Months Service
    View Plan

    Mint Mobile 10GB SIM card

    10GB

    $20*

    * Only $60 for 3 Months Service
    View Plan

    Mint Mobile 15GB SIM card

    15GB

    $25*

    * Only $75 for 3 Months Service
    View Plan

    Mint Mobile Unlimited SIM card

    Unlimited

    $30*

    * Only $90 for 3 Months 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 free SIM card for smartwatches

    See Deal
    Tello SIM Card - Tello 1GB SIM kitTello SIM Card - Tello 1GB SIM kit
    Minutes
    Unlimited
    Texts
    Unlimited
    Data
    1GB
    Price
    $10
    Powered by:
    See Deal

    This Tello SIM kit includes unlimited mins, unlimited texts and 1GB data for $10 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

    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 free SIM card for 5G

    See Deal
    Ultra Mobile SIM Card - Ultra Mobile 2GB - 12 mths SIM kitUltra Mobile SIM Card - Ultra Mobile 2GB - 12 mths SIM kit
    Minutes
    Unlimited
    Texts
    Unlimited
    Data
    2GB
    Price
    $14** $168 for 12 Months Service
    Powered by:
    See Deal

    This Ultra Mobile SIM kit includes unlimited mins, unlimited texts and 2GB data for $14 for 1 month of wireless service. Ultra 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 Ultra Mobile review

    Plans
    PlanDataPriceView plan

    Ultra Mobile 250MB SIM card

    250MB

    $10*

    * $120 for 12 Months Service
    View Plan

    Ultra Mobile 2GB SIM card

    2GB

    $14*

    * $168 for 12 Months Service
    View Plan

    Ultra Mobile 3GB SIM card

    3GB

    $20*

    * $240 for 12 Months Service
    View Plan

    Ultra Mobile 6GB SIM card

    6GB

    $25*

    * $300 for 12 Months Service
    View Plan

    Ultra Mobile 15GB SIM card

    15GB

    $30*

    * $360 for 12 Months Service
    View Plan

    Ultra Mobile Unlimited SIM card

    Unlimited

    $40*

    * $480 for 12 Months Service
    View Plan
    Review
    3.5

    Pros

    • Simple account dashboard

    • Unlimited international talk and text

    • Nationwide coverage

    Cons

    • Customer service

    Benefits

    • Coverage provided on the nationwide T-Mobile network

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

    • Bring your own compatible GSM phone or buy one from Ultra Mobile

    • Mobile hotspot use supported

    • Unlimited global texting and unlimited calling to 80+ countries

    • International roaming credits available in $5, $10, or $20 denominations

    • International plan tier comes with uTalk - a feature that gives you up to 1250 bonus minutes to your choice of 39 additional destinations

    • Customer service available by phone, email, and chat from 6am to 6pm every day

    Best free CDMA SIM card

    See Deal
    Twigby SIM Card - Twigby 4GB data SIM kitTwigby SIM Card - Twigby 4GB data SIM kit
    Minutes
    Unlimited
    Texts
    Unlimited
    Data
    4GB
    Price
    $10** $10 Off for 3 Months
    Powered by:
    See Deal

    This Twigby SIM kit includes unlimited mins, unlimited texts and 4GB data for $10 for 1 month of wireless service. Twigby plans offer wireless coverage on the Verizon 5G and 4G LTE network. To learn more about why this is one of the best cell phone plans, check out MoneySavingPro's Twigby review

    Plans
    PlanDataPriceView plan

    Twigby 1GB SIM card

    1GB

    $5*

    * $10 Off for 3 Months
    View Plan

    Twigby 0GB SIM card

    0GB

    $5*

    * $10 Off for 3 Months
    View Plan

    Twigby 4GB SIM card

    4GB

    $10*

    * $10 Off for 3 Months
    View Plan

    Twigby 7GB SIM card

    7GB

    $15*

    * $10 Off for 3 Months
    View Plan

    Twigby 10GB SIM card

    10GB

    $20*

    * $10 Off for 3 Months
    View Plan

    Twigby Unlimited SIM card

    Unlimited

    $30*

    * $10 Off for 3 Months
    View Plan
    Review
    4.5

    Pros

    • No hotspot/tethering charges

    • International calling and texting

    • 4G LTE coverage

    • Exclusive deals and discounts as a Twigby customer

    Cons

    • Limited handset selection

    • Not for the data hungry

    Benefits

    • Runs on both the Verizon and Sprint networks

    • 30-day money-back satisfaction guarantee on phones and plans (under 300 minutes, 300 texts, or 300 MB of data used)

    • Prepaid - no contracts, credit checks, or activation fees

    • Bring your CDMA device or choose from a modest selection of Twigby phones

    • Keep your own phone number

    • Use your phone and plan data as a mobile hotspot

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

    • Free international texting to over 180 countries

    • US-based chat support available weekdays 7am to 9pm CST and 10am to 6pm on weekends

    Best free SIM card for data only

    See Deal
    Mint Mobile SIM Card - Mint Mobile 4GB data only SIM kitMint Mobile SIM Card - Mint Mobile 4GB data only SIM kit
    Minutes
    0
    Texts
    0
    Data
    4GB
    Price
    $15** Only $45 for 3 Months Service
    Powered by:
    See Deal

    This Mint Mobile SIM kit includes 0 mins, 0 texts and 4GB data for $15 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*

    * Only $45 for 3 Months Service
    View Plan

    Mint Mobile 10GB SIM card

    10GB

    $20*

    * Only $60 for 3 Months Service
    View Plan

    Mint Mobile 15GB SIM card

    15GB

    $25*

    * Only $75 for 3 Months Service
    View Plan

    Mint Mobile Unlimited SIM card

    Unlimited

    $30*

    * Only $90 for 3 Months 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 free SIM card for alarms

    See Deal
    US Mobile SIM Card - US Mobile 500MB data only SIM kitUS Mobile SIM Card - US Mobile 500MB data only SIM kit
    Minutes
    0
    Texts
    0
    Data
    500MB
    Price
    $5* Free 10 Day Trial
    Powered by:
    See Deal

    This US Mobile SIM kit includes 0 mins, 0 texts and 500MB data for $5 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

    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 free SIM card for GPS trackers

    See Deal
    Red Pocket SIM Card - Red Pocket 1GB data only SIM kitRed Pocket SIM Card - Red Pocket 1GB data only SIM kit
    Minutes
    0
    Texts
    0
    Data
    1GB
    Price
    $10
    Powered by:
    See Deal

    This Red Pocket SIM kit includes 0 mins, 0 texts and 1GB data for $10 for 1 month of wireless service. Red Pocket 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 Red Pocket review

    Plans
    PlanDataPriceView plan

    Red Pocket 500MB SIM card

    500MB

    $10

    View Plan

    Red Pocket 3GB SIM card

    3GB

    $15*

    * $180 for 12 Months Service
    View Plan

    Red Pocket 3GB SIM card

    3GB

    $20

    View Plan

    Red Pocket 10GB SIM card

    10GB

    $22.50*

    * $270 for 12 Months Service
    View Plan

    Red Pocket 25GB SIM card

    25GB

    $30*

    * $360 for 12 Months Service
    View Plan

    Red Pocket 10GB SIM card

    10GB

    $30

    View Plan

    Red Pocket 50GB SIM card

    50GB

    $37.50*

    * $450 for 12 Months Service
    View Plan

    Red Pocket 25GB SIM card

    25GB

    $40

    View Plan

    Red Pocket 50GB SIM card

    50GB

    $50

    View Plan
    Review
    4.5

    Pros

    • Nationwide coverage

    • No contracts

    • Latest selection of phones

    Cons

    • Account dashboard needs work

    • No 0% financing options on latest phones

    • Customer service

    Benefits

    • Operates on all four networks - AT&T, T-Mobile, Sprint, and Verizon

    • Prepaid cell phone plans - no contract, credit check, or activation fees

    • Bring your own GSM or CDMA device and keep your phone number

    • Mobile hotspot/tethering allowed with your plan data

    • Free international calling to 70+ countries

    • Customer service available in English, Chinese, Filipino, and Spanish via chat or phone

    SIM card sizes

    There are three different SIM card sizes in the various Apple iPhone models. Each has an adapter in case you want to switch to a phone with an incompatible SIM Card slot.

    1. Standard SIM Card - The original SIM Card size is similar to any card in your wallet. However, if you want to transfer your data to a new phone, you can take out a small portion of the SIM card to insert into another iPhone. The original iPhone along with the older iPhone 3G and 3GS all use the original SIM Card, according to Apple.
    2. Micro SIM Card - Micro SIM Cards were introduced with the iPhone 4 in 2010. The Micro SIM is also used in the iPhone 4s. The Micro SIM Card size is small compared to the original SIM card but not quite as small as the Nano SIM card.
    3. Nano SIM Card - Nano SIM Cards are the smallest SIM cards that came out in the iPhone 5 in 2013. The cards have been in every iPhone since, all the way up to the iPhone 7 Plus.

    SIM card size chart

    SIM TypeLengthWidthHeight
    Standard SIM25mm15mm0.76mm
    Micro SIM15mm12mm0.76mm
    Nano SIM12.3mm8.8mm0.76mm

    iPhone SIM card compatibility

    DEVICESIM CARD SIZE
    iPhone SE SIMNano
    iPhone 6 SIMNano
    iPhone 7 SIMNano
    iPhone 8 SIMNano
    iPhone X SIMNano
    iPhone XR SIMNano
    iPhone XS SIMNano
    iPhone 11 SIMNano
    iPhone 12 SIMNano
    iPhone 13 SIMNano

    Samsung SIM card compatibility

    DEVICESIM CARD SIZE
    Galaxy S7 SIMNano
    Galaxy S8 SIMNano
    Galaxy S9 SIMNano
    Galaxy S10 SIMNano
    Galaxy S20 SIMNano
    Galaxy S21 SIMNano

    How to remove a SIM card

    To remove the SIM card from your cell phone all you need is the SIM card remover tool provided to you when you bought your phone, or a small paper clip.

    1. If using the paperclip, unfold it and gently insert the end into the small pinhole in the SIM tray.
    2. Press gently until the SIM tray pops up, you do not need to use much pressure.
    3. Pull the SIM tray out gently, be careful the SIM card does not fall out.
    4. Swap your SIM card over, making sure you have aligned the SIM in the correct position.
    5. Re-insert the SIM tray into the phone.

    Free SIM card FAQs

    What is a SIM card?

    A SIM card - or subscriber identity module card - is where your phone information is stored.

    How much is a prepaid plan with a free SIM card?

    Prepaid SIM card plans start at $10 per month depending on the carrier and data plan.

    What size SIM card do I need?

    There are three types of SIM cards available; Nano SIM, micro SIM, and standard. The Nano SIM is the most common and is used for all the latest smartphones.

    Where can I get a free SIM card?

    You can get a free SIM card online when you switch to a cheap prepaid carrier.


    Recap

    MVNOs offer the cheapest cell phone plans, with such a wide variety there's something for everyone.

    Operating on the same three major networks, a SIM card from a low-cost carrier doesn't mean compromising on quality. They offer many of the same perks including unlimited data, international calls, and mobile hotspot use.

    Finding the best cell phone coverage for your area is easy using your ZIP code, so you can make sure you find a SIM card with the best carrier for you.

    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.