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Best Galaxy S21 SIM Card of 2021

Compare prepaid BYOP plans compatible with the Galaxy S21

Deal of the Month: Reach Mobile 3GB for $15/mo* - See Deal
Ting Sim Card - Vertical
0GBLTE Data
$10*per month
Powered by:
See Deal* $5 extra per GB
Reach Mobile Sim Card - Vertical
3GBLTE Data
$15*per month
Powered by:
See Deal* 50% Off for 3 Months
Pure Talk Sim Card - Vertical
4GBLTE Data
$18.75*per month
Powered by:
See Deal* 25% Off for 3 Months
Ting Sim Card - Vertical
5GBLTE Data
$20*per month
Powered by:
See Deal* $5 Off for 6 Months
Mint Mobile Sim Card - Vertical
UnltdLTE Data
$30*per month
Powered by:
See Deal* $90 for 3 months Service
Tello Sim Card - Vertical
2GBLTE Data
$14per month
Powered by:
Good2Go Mobile Sim Card - Vertical
1GBLTE Data
$7.50*per month
Powered by:
See Deal* 50% Off for 3 Months
h2o Wireless Sim Card - Vertical
2GBLTE Data
$15*per month
Powered by:
See Deal* 25% Off for 3 Months
Twigby Sim Card - Vertical
1GBLTE Data
$7.50*per month
Powered by:
See Deal* 50% Off for 6 Months
US Mobile Sim Card - Vertical
12GBLTE Data
$20per month
Powered by:
See DealFree Starter Kit with code: MSPUSM
We currently have no deals for that combination, please change the filters
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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 Galaxy S21 SIM Card Hero
Switch and save $600 per year
Stop the Unlimited Data Plan Rip Off!
CarrierNetworkDataPriceAnnual
T-MobileT-Mobile 4G & 5GUnlimited*$60/mo$720/yr
Mint MobileT-Mobile 4G & 5G10GB$20/mo$240/yr
*Avg. data usage only 3-5GBSavings$40/moSavings$480/yr
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3 Simple Steps To Switch & Save
1
Choose a Custom PlanDon't pay for data you don't use
2
Bring Your Own PhoneKeep your phone & number
3
Insert SIM & ActivateInsert your new SIM card & activate

The cheapest Galaxy S21 SIM card in May

If you're looking for a cheap prepaid plan for your Galaxy S21 you can save a lot of money with an MVNO.

These low-cost carriers are powered by one of the big networks, so you get the same great quality service that you're used to and save up to $600 per year on your phone bill.

Not only can you save money by switching to a cheaper cell phone plan, but by bringing your iPhone 11 to the new carrier you won't need to buy a new device.

Check Carrier Coverage

Cheapest T-Mobile Galaxy S21 SIM card

Mint Mobile - 4GB Data* $45 for 3 Months Service
UnlimitedminsUnlimitedtexts
4 GB4G data
$15*per month
Powered by: T-Mobile

T-Mobile vs Mint Mobile Plan Comparison

Keep your T-Mobile phone, number & coverage: Save $540 per year

Carrier

Network Coverage

4G LTE Data

Price

Annual Cost

T-Mobile

T-Mobile 4G LTE

Unltd*

$60/mo

$720/yr

Mint Mobile

T-Mobile 4G LTE

4GB

$15/mo

$180/yr

*Don't waste money on unlimited data - Avg. data usage is only 3-5GBSavings$45/mo$540/yr

See more: Prepaid T-Mobile SIM cards

Cheapest AT&T Galaxy S21 SIM card

Pure Talk - 4GB Data* 25% Off for 3 Months
UnlimitedminsUnlimitedtexts
4 GB4G data
$18.75*per month$25/mo
Powered by: AT&T

AT&T vs Pure Talk Plan Comparison

Keep your AT&T phone, number & coverage: Save $619 per year

Carrier

Network Coverage

4G LTE Data

Price

Annual Cost

AT&T

AT&T 4G LTE

Unltd*

$75/mo

$900/yr

Pure Talk

AT&T 4G LTE

4GB

$25/mo

$281/yr

*Don't waste money on unlimited data - Avg. data usage is only 3-5GBSavings$50/mo$619/yr

See more: Prepaid AT&T SIM cards

Cheapest Verizon Galaxy S21 SIM card

Reach Mobile - 3GB Data* 50% Off for 3 Months
UnlimitedminsUnlimitedtexts
3 GB4G data
$15*per month$30/mo
Powered by: Verizon

Verizon vs Reach Mobile Plan Comparison

Keep your Verizon phone, number & coverage: Save $645 per year

Carrier

Network Coverage

4G LTE Data

Price

Annual Cost

Verizon

Verizon 4G LTE

Unltd*

$80/mo

$960/yr

Reach Mobile

Verizon 4G LTE

3GB

$30/mo

$315/yr

*Don't waste money on unlimited data - Avg. data usage is only 3-5GBSavings$50/mo$645/yr

See more: Prepaid Verizon SIM cards


Prepaid Galaxy S21 SIM card benefits

We love Mobile Virtual Network Operators or MVNOs. If you're on the lookout for cheap cell phone plans, they're the best route to go down.

Want to stay on the same network, keep your phone and number, plus get greater flexibility?

Yep. You've got it. Forget the major carriers. Plans include everything you need, but come at a much better price with an MVNO.

  • Same great nationwide coverage: These cell phone carriers operate on the very same networks as the big four 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 SIM card plans for Samsung Galaxy S21

Cheapest Cell Phone Plans

Tello - Best prepaid Galaxy S21 SIM card plan

Powered by:
Minutes
Unlimited
Texts
Unlimited
Data
1 GB
Price
$10/mo
Pros & Cons

Pros

  • 24/7 customer support

  • No contracts

  • Budget friendly family plans

Cons

  • No roaming

  • Coverage in rural areas

Carrier 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

Carrier Features
Plans

Plan

Minutes

Texts

Data

Price

Tello Unlimited Talk & Text

Unlimited

Unlimited

0GB

$8

Tello 1GB Data

Unlimited

Unlimited

1GB

$10

Tello 2GB Data

Unlimited

Unlimited

2GB

$14

Tello 4GB Data

Unlimited

Unlimited

4GB

$19

Tello 6GB Data

Unlimited

Unlimited

6GB

$24

Tello 8GB Data

Unlimited

Unlimited

8GB

$29

Tello Unlimited Data

Unlimited

Unlimited

Unlimited

$39

Cheapest Unlimited Data Plans

Mint Mobile - Best Galaxy S21 SIM card for unlimited data

Powered by:
Minutes
Unlimited
Texts
Unlimited
Data
Unlimited
Price
$30/mo*
* $90 for 3 months Service
Pros & Cons

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

Carrier 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

Carrier Features
Plans

Plan

Minutes

Texts

Data

Price

Mint Mobile 4GB Data

Unlimited

Unlimited

4GB

$15*

* $45 for 3 Months Service

Mint Mobile 10GB Data

Unlimited

Unlimited

10GB

$20*

* $60 for 3 Months Service

Mint Mobile 15GB Data

Unlimited

Unlimited

15GB

$25*

* $75 for 3 months Service

Mint Mobile Unlimited Data

Unlimited

Unlimited

Unlimited

$30*

* $90 for 3 months Service
Best Family Cell Phone Plans

Reach Mobile - Best Galaxy S21 SIM card for families

Powered by:
Minutes
Unlimited
Texts
Unlimited
Data
3 GB
Price
$15/mo*
* 50% Off for 3 Months
Pros & Cons

Pros

  • Socially conscious provider who gives back

  • 4G LTE network

  • Hotspot enabled

Cons

  • Small selection of handsets

  • Expensive high data plans

Carrier Benefits
  • Powered by the Verizon network

  • Service is postpaid with no credit check

  • Only upfront payment is shipping for SIM card

  • Bring your own compatible phone

  • Keep your phone number

  • Hotspot enabled on all plans

  • 24/7 customer support by phone or chat

Carrier Features
Plans

Plan

Minutes

Texts

Data

Price

Reach Mobile 3GB Data

Unlimited

Unlimited

3GB

$15*

Reach Mobile 8GB Data

Unlimited

Unlimited

8GB

$23*

Reach Mobile 12GB Data

Unlimited

Unlimited

12GB

$28*

Reach Mobile 20GB Data

Unlimited

Unlimited

20GB

$33*

* 50% Off for 3 Months

Best 5G Phone Plans

Boost Mobile - Best Galaxy S21 SIM card for 5G

Powered by:
Minutes
Unlimited
Texts
Unlimited
Data
1 GB
Price
$5/mo*
* 50% Off First Month
Pros & Cons

Pros

  • New upgraded network with DISH

  • No annual contract

  • Unlimited music streaming

Cons

  • Coverage in rural areas

Carrier 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

Carrier Features
Plans

Plan

Minutes

Texts

Data

Price

Boost Mobile 1GB Data

Unlimited

Unlimited

1GB

$5*

* 50% Off First Month

Boost Mobile 5GB Data

Unlimited

Unlimited

5GB

$25

Boost Mobile Unlimited

Unlimited

Unlimited

Unlimited

$50

Best Talk & Text Only Plans

Ting - Best Galaxy S21 SIM card for talk & text

Powered by:
Minutes
Unlimited
Texts
Unlimited
Data
0 GB
Price
$10/mo*
* $5 extra per GB
Editors Take
4 / 5
Pros & Cons

Pros

  • Simple plans for light phone users

  • Customer service

  • Nationwide LTE and 5G coverage

  • Good selection of handsets

Cons

  • Not for the data hungry user

Carrier Benefits
  • Offers coverage on both Verizon and T-Mobile

  • Prepaid service - no contract, credit check, or start-up fees

  • Bring your GSM or CDMA phone - most devices are compatible - or buy one from Ting

  • Keep your current number

  • Tethering/mobile hotspot allowed, speeds limited to 3G for GSM tethering

  • Use your plan minutes to call 60+ international locations

  • International roaming capability (at surcharged rates)

  • Extensive customer service hours by phone, chat, or email

Carrier Features
Plans

Plan

Minutes

Texts

Data

Price

Ting Unlimited Talk & Text

Unlimited

Unlimited

0GB

$10*

* $5 extra per GB

Ting 1GB Data

Unlimited

Unlimited

1GB

$15

Ting 5GB Data

Unlimited

Unlimited

5GB

$20*

* $5 Off for 6 Months

Ting 12GB Data

Unlimited

Unlimited

12GB

$30*

* $5 Off for 6 Months

Ting Unlimited Data

Unlimited

Unlimited

Unlimited

$40*

* $5 Off for 6 Months
Best Cell Phone Plans for Seniors

Twigby - Best Galaxy S21 SIM card for seniors

Powered by:
Minutes
300
Texts
Unlimited
Data
1 GB
Price
$7.50/mo*
* 50% Off for 6 Months
Editors Take
4.5 / 5
Pros & Cons

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

Carrier 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

Carrier Features
Plans

Plan

Minutes

Texts

Data

Price

Twigby Unlimited Talk & Text

Unlimited

Unlimited

0GB

$6.50*

Twigby 300 Mins & 1GB Data

300

Unlimited

1GB

$7.50*

Twigby 3GB Data

Unlimited

Unlimited

3GB

$10*

Twigby 5GB Data

Unlimited

Unlimited

5GB

$12.50*

Twigby 10GB Data

Unlimited

Unlimited

10GB

$17.50*

* 50% Off for 6 Months

Best Cell Phone Plans for Kids

Red Pocket - Best Galaxy S21 SIM card for kids

Powered by:
Minutes
1000
Texts
Unlimited
Data
1 GB
Price
$10/mo
Pros & Cons

Pros

  • Nationwide coverage

  • No contracts

  • Latest selection of phones

Cons

  • Account dashboard needs work

  • No 0% financing options on latest phones

  • Customer service

Carrier 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

Carrier Features
Plans

Plan

Minutes

Texts

Data

Price

Red Pocket 1GB Data

1000

Unlimited

1GB

$10

Red Pocket 3GB Data

Unlimited

Unlimited

3GB

$19

Red Pocket 10GB Data

Unlimited

Unlimited

10GB

$30

Red Pocket 22GB Data

Unlimited

Unlimited

22GB

$40

Cheapest Phone Plans for One Person

Pure Talk - Best Galaxy S21 SIM card for individuals

Powered by:
Minutes
Unlimited
Texts
Unlimited
Data
4 GB
Price
$18.75/mo*
* 25% Off for 3 Months
Pros & Cons

Pros

  • 4G LTE coverage

  • Multi-month discounts

  • US based customer service

Cons

  • No 0% finance plans for new phones

  • May slow speeds at busy times

Carrier Benefits
  • Service provided on the AT&T network

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

  • 30-day risk-free guarantee on plans- cancel within your first 30 days or 500 minutes/500 MB of data to receive a refund for your plan charges

  • Bring your own compatible GSM phone or buy a PureTalk USA phone

  • Keep your phone number

  • Mobile hotspot/tethering permitted

  • International calling available as an add-on calling card

  • Customer support available by phone 9am - 10pm EST weekdays and 12pm - 9pm weekends

Carrier Features
Plans

Plan

Minutes

Texts

Data

Price

Pure Talk 2GB Data

Unlimited

Unlimited

2GB

$15*

Pure Talk 4GB Data

Unlimited

Unlimited

4GB

$18.75*

Pure Talk 6GB Data

Unlimited

Unlimited

6GB

$22.50*

Pure Talk 10GB Data

Unlimited

Unlimited

10GB

$26.25*

Pure Talk 20GB Data

Unlimited

Unlimited

20GB

$33.75*

Pure Talk Unlimited Data

Unlimited

Unlimited

Unlimited

$41.25*

* 25% Off for 3 Months

Best International Cell Phone Plans

Gen Mobile - Best Galaxy S21 SIM card for international calls

Powered by:
Gen Mobile SIM Card - Best Galaxy S21 SIM card for international calls
Minutes
300
Texts
Unlimited
Data
1 GB
Price
$9/mo*
* 25% off for 3 months - Promo: MSP25OFF3MO
Pros & Cons

Pros

  • Good plan selection

  • Very affordable pricing

  • Free unlimited domestic and international texting

  • 15-days free texting if late on bill

Cons

  • No plans for heavy data users

  • No international roaming

Carrier Benefits
  • Coverage on the nationwide Sprint network

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

  • 7-day money-back satisfaction guarantee

  • Bring your eligible Sprint, Boost, or Virgin Mobile phone or buy a Gen Mobile phone

  • Mobile hotspot/tethering supported

  • Unlimited global text included; international plans with unlimited talk to 100+ countries, international calling to other countries available at applicable rates

  • Customer support available by phone or chat every day from 8am - 6pm PST

Carrier Features
Plans

Plan

Minutes

Texts

Data

Price

Gen Mobile Unlimited Talk & Text

Unlimited

Unlimited

0GB

$9*

* 25% off for 3 months - Promo: MSP25OFF3MO

Gen Mobile 300 Mins & 1GB Data

300

Unlimited

1GB

$9*

* 25% off for 3 months - Promo: MSP25OFF3MO

Gen Mobile 1GB Data

Unlimited

Unlimited

1GB

$13*

* 25% off for 3 months - Promo: MSP25OFF3MO

Gen Mobile 2GB Data

Unlimited

Unlimited

2GB

$17*

* 25% off for 3 months - Promo: MSP25OFF3MO

Gen Mobile 3GB Data

Unlimited

Unlimited

3GB

$20*

* 25% off for 3 months - Promo: MSP25OFF3MO

Gen Mobile 5GB Data

Unlimited

Unlimited

5GB

$24*

* 25% off for 3 months - Promo: MSP25OFF3MO
Best Mobile Hotspot Plans

US Mobile - Best Galaxy S21 SIM card for data only

Powered by:
Minutes
0
Texts
0
Data
2 GB
Price
$10/mo
Free Starter Kit with code: MSPUSM
Pros & Cons

Pros

  • Flexible, no contract plans

  • 24/7 customer service

  • 5G coverage available

Cons

  • No international calling

  • Phone selection

Carrier 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

Carrier Features
Plans

Plan

Minutes

Texts

Data

Price

US Mobile Unlimited Talk & Text

Unlimited

Unlimited

0GB

$10

US Mobile 1GB Data

Unlimited

Unlimited

1GB

$12

US Mobile 5GB Data

Unlimited

Unlimited

5GB

$15

US Mobile 12GB Data

Unlimited

Unlimited

12GB

$20

US Mobile 18GB Data

Unlimited

Unlimited

18GB

$25

US Mobile 30GB Data

Unlimited

Unlimited

30GB

$30

US Mobile Unlimited Data

Unlimited

Unlimited

Unlimited

$45

Free Starter Kit with code: MSPUSM

How to remove the SIM card from a Galaxy S21

To remove the SIM card from your Samsung Galaxy S21 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 Galaxy S21.

Prepaid Galaxy S21 SIM card plan comparison

Carrier

Network

Data

Price

Ting

T-Mobile & Verizon

0GB

$10** $5 extra per GB

Reach Mobile

Verizon

3GB

$15** 50% Off for 3 Months

Pure Talk

AT&T

4GB

$18.75** 25% Off for 3 Months

Ting

T-Mobile & Verizon

5GB

$20** $5 Off for 6 Months

Mint Mobile

T-Mobile

Unltd

$30** $90 for 3 months Service

Galaxy S21 SIM card FAQs

What does a Galaxy S21 SIM card cost?

A prepaid SIM card compatible with the Galaxy S21 range from $10-70 depending on the plan you choose.

What size SIM card does the Galaxy S21 use?

There are three SIM card sizes, standard SIM, micro SIM, and nano SIM. The Galaxy S21 uses a nano SIM card.

How do I remove the SIM card from the Galaxy S21?

With the SIM eject tool, or a paperclip, firmly press into the hole on the SIM tray until it pops out.

How do I insert the SIM card into the Galaxy S21?

Once you've removed the SIM tray, pop the SIM card onto the tray and gently push back into the phone.

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.

Prepaid SIM Card Comparison