Best Phone SIM Cards of 2026

Jerry Franklin Avatar
Jerry Franklin
Last Updated: Jan 18, 2026

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Phone SIM cards are small chips that are inserted into a mobile phone to connect to a cellular network. They store information such as the user's phone number, contacts, and text messages. SIM cards are essential for making calls, sending texts, and accessing the internet on a mobile device. They come in various sizes, including standard, micro, and nano, and can be purchased from mobile carriers or retailers. SIM cards are often used for prepaid mobile plans, allowing users to pay for their phone usage in advance. They are also used for international travel, as users can purchase a local SIM card to avoid roaming charges.

At a Glance: Our Top Picks

Tello Mobile SIM Card Kit Cover #TOP 1
Tello Mobile SIM Card Kit
ftb score rating icon 9.9
Tracfone Universal Prepaid SIM Card Kit Cover #TOP 2
Tracfone Universal Prepaid SIM Card Kit
ftb score rating icon 9.8
Boost Mobile $25 Unlimited SIM Kit Cover #TOP 3
Boost Mobile $25 Unlimited SIM Kit
ftb score rating icon 9.6

Top 10 Phone SIM Cards

#TOP 1

Tello Mobile SIM Card Kit

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Tello Mobile SIM Card Kit Cover
Tello Mobile - US Prepaid SIM Card (3 in 1) | Bring Your Own Phone Kit | Phone Plans Starting at $5/mo up to $25/mo | Nation-Wide 4G LTE/5G Coverage

Get affordable phone plans with Tello Mobile SIM Card Kit. The kit includes a universal SIM card compatible with unlocked GSM devices, which can activate the Tello network with 4G LTE/5G US coverage. All plans come with free hotspot and international calls to 60+ countries.

What We Like
Easy and quick setup
Affordable pay-as-you-go plans
Good backup or secondary line
Flexible compatibility with devices
Simple activation process
What We Don't Like
Coverage varies by location
Occasional activation issues
#TOP 2

Tracfone Universal Prepaid SIM Card Kit

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Black
Tracfone Universal Prepaid SIM Card Kit Cover
Tracfone Prepaid Sim Card Kit (Universal)

The Tracfone Prepaid SIM Kit lets you use your own compatible phone on the Tracfone network, giving you the freedom to keep your current device. It includes a versatile SIM card that works with GSM and CDMA LTE networks and fits nano, micro, and standard SIM slots, so you don’t have to worry about compatibility. Inside the kit, you’ll find a prepaid SIM card that activates easily—just insert it into your phone and follow simple steps to get started. The included activation instructions make setting up your phone straightforward and hassle-free, so you can enjoy service quickly.

What We Like
Easy activation process
Seamless number transfer
Low cost SIM kit
Reliable call and text quality
Universal compatibility
What We Don't Like
Occasional activation issues
Possible incompatibility with some phones
#TOP 3

Boost Mobile $25 Unlimited SIM Kit

Boost Mobile $25 Unlimited SIM Kit Cover
Boost Mobile SIM Kit | $25/mo Forever Unlimited Plan with Auto-Pay | Unlimited Talk, Text & Data | First Month Included with Purchase | US Phones Only

The Boost Mobile Unlimited SIM offers a simple way to get reliable nationwide coverage, perfect for your 4G or newer US phone made after 2022. This SIM kit comes with three sizes and supports eSIM on some devices, making activation easy no matter your phone type. With this plan, you get unlimited talk and text along with 30 GB of fast data, great for streaming and browsing without worry. Plus, you can enjoy the $25 monthly rate forever with AutoPay, ensuring no surprise fees or contracts. It’s a convenient, budget-friendly choice for staying connected.

What We Like
Fast delivery
Easy activation process
Good coverage and reliability
Affordable plan options
Clear instructions
What We Don't Like
Activation process sometimes confusing
Occasional signal issues in some areas
#TOP 4

Tello Mobile 5GB Plan

Tello Mobile 5GB Plan Cover
$14/Month - 5GB Data + Unlimited Minutes & Texts | Tello Mobile Prepaid Phone Plan | Bring Your Own Phone Kit | 3 in 1 SIM Card Included | US Nation-Wide 4G LTE/5G Coverage

The Tello 5GB Plan offers an affordable mobile solution for users looking to save on their phone bills. For just $14 a month, you receive 5GB of data along with unlimited calls and texts, allowing you to stay connected without worrying about overage charges. You have the flexibility to bring your existing phone or choose a new one from Tello, making it convenient to switch services. With a universal SIM card included, you can easily activate your service and start using it right away. Additionally, this plan features free hotspot capabilities and international calling to over 60 countries, adding even more value.

What We Like
Easy activation process
Affordable monthly plans
No contract required
Flexible plan management
Strong coverage in most areas
What We Don't Like
Limited compatibility with locked phones
Coverage gaps in certain regions

Verizon Wireless 4G LTE SIM Card - 3 Sizes

SIM ONLY - NO RETAIL PACKAGING
Black
Verizon Wireless 4G LTE SIM Card - 3 Sizes Cover
Verizon Wireless 4G LTE SIM Card - All 3 Sizes (3-in-1), Nano/Micro/Standard Sizes (4FF / 3FF / 2FF)

The Verizon Wireless 4G LTE SIM Card is a 3-in-1, single SIM card that fits any compatible Verizon phone. It can be "punched out" to fit standard, micro, and nano-sized SIM slots. The card is compatible with both prepaid and postpaid Verizon accounts, but is not compatible with MVNO's. Please note that this SIM card does not support NFC.

What We Like
Easy activation process
Fast shipping
Works with multiple SIM sizes
Suitable for Verizon network
Responsive customer support
What We Don't Like
Compatibility issues with some devices
Activation limited outside USA
#TOP 6

US Mobile Prepaid SIM Card Custom Plans

DarkStar+Warp
US Mobile Prepaid SIM Card Custom Plans Cover
Prepaid SIM Card (US Mobile) - Custom Plans from $4/mo. Unlimited Plans from $17/mo.

The US Mobile Prepaid SIM offers you a flexible way to stay connected with two SIM cards included—one for the Warp Network and another for the Dark Star Network—giving you options depending on your coverage needs. Activation is quick and simple, so you can get started right away and easily manage your lines whenever you want without hassle. You can choose affordable 5G plans starting as low as $4 per month, making it a budget-friendly option. Plus, if you need more data, the unlimited premium plan comes with up to 10 GB of international data, helping you stay connected even when traveling abroad.

What We Like
Flexible, customizable plans
Fast and easy SIM delivery
Low-cost service
Solid call quality
Responsive customer support
What We Don't Like
Minor data speed slowdowns
Limited device compatibility
#TOP 7

Verizon Wireless 5G & 4G LTE SIM Card

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TRIPLE CUT
Verizon Wireless 5G & 4G LTE SIM Card Cover
Verizon Wireless 5G & 4G LTE SIM Card Triple Cut All 3 Sizes (3-in-1), Nano/Micro/Standard Sizes (4FF / 3FF / 2FF) (BULKSIM5G-SA-A) Complete with SimBros Simkey Bundle. (1)

The Verizon Wireless SIM Card is a versatile option for any Verizon device. It is compatible with both 5G and 4G networks, making it suitable for a wide range of devices. With the SimBros Simkey included, accessing the SIM tray of your device becomes effortless. This triple cut SIM card can be easily broken down into every size, ensuring it will fit any Verizon device. Whether you have a prepaid or postpaid Verizon account, this SIM card works seamlessly. Say goodbye to compatibility issues and enjoy the convenience of this all-in-one SIM card.

What We Like
Fast shipping
Easy installation
Compatible with iPhone 13 Pro Max
Works well in supported phones
What We Don't Like
Possible activation issues
SIM card thickness for some phones
#TOP 8

Prepaid 4G LTE Cellular SIM Card for IoT Devices

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Prepaid 4G LTE Cellular SIM Card for IoT Devices Cover
EIOTCLUB SIM Card for Data Only, 5G/4G LTE USA Compatible with Nationwide Networks for Security, Hunting Trail Game Cameras - No Contract Wireless-Triple Cut Size

Get a reliable and safe cellular data service with EIOTCLUB Prepaid 4G LTE Cellular SIM Card. It provides 300MB data for 30 days without any cost or contract. Just insert the SIM card to your IoT device and it will work through AT&T and T-Mobile networks in the USA. This data-only SIM card is compatible with a wide range of devices, including mobiles, tablets, PCs, pet trackers, security and hunting trail game cameras, GPS devices, and more. The SIM kit is pre-cut in 3 sizes to fit any device. Online support is available for customer convenience.

What We Like
Easy setup and activation
Reliable 4G LTE coverage
No contracts or hidden fees
Excellent customer service
Affordable and flexible plans
What We Don't Like
Device network band compatibility required
Website lacks band info clarity
#TOP 9

Padfender SpeedTalk Mobile Kids SIM Card Kit

Original Version
Padfender SpeedTalk Mobile Kids SIM Card Kit Cover
SpeedTalk Mobile $5 Preloaded SIM Card Kit for Kids Smart Watch GPS & Activity Tracking | 3 in 1 Simcard - Standard, Micro, Nano | Children GSM 5G 4G LTE Smartwatches Wearables | 30 Days Service Plan

The Padfender SpeedTalk Kids SIM offers a simple mobile plan designed for kids' smartwatches, providing 50 minutes of talk time, 100 text messages, and 100MB of data for 30 days. This helps you keep your child connected without overpaying. Activation is straightforward, requiring just a valid credit card and three easy steps, with live customer support available every day to assist you. The SIM card works with 4G and 5G LTE smartwatches and wearables, ensuring fast and reliable connectivity. Plus, there are no activation fees, no credit checks, and no contracts, giving you flexibility and peace of mind when managing your child's mobile service.

What We Like
Fast delivery
Easy setup
Affordable price
Convenient for kids' smartwatches
Multiple SIM sizes included
What We Don't Like
Installation issues for some users
Coverage limitations in some areas
#TOP 10

SpeedTalk Mobile $5 Prepaid Plan

$5 - 100MB - 100 Talk & 100 Text
SpeedTalk Mobile $5 Prepaid Plan Cover
SpeedTalk Mobile $5 Prepaid Wireless Pay Go Plan for Smartphones & Cellphones | 5G 4G LTE | 100 Talk, 100 Text, 100 MB Data |Triple Cut (Mini,Micro,Nano) Sim Card | No Contract | 30-Day Service

The SpeedTalk Mobile Plan offers an incredibly affordable prepaid option for just $5. With this plan, you get 100 minutes of talk, 100 texts, and 100MB of data, perfect for light users looking to save money. Enjoy easy activation without contracts or credit checks, allowing you to cancel anytime without any hassle. Plus, you can use any compatible unlocked phone, thanks to the versatile Triple Cut SIM card that fits various devices. You can also keep your existing phone number, making the transition smooth and simple.

What We Like
Low monthly cost
Easy phone activation
Adjustable SIM card sizes
Reliable emergency service
Works with basic phones
What We Don't Like
Complex online activation
Occasional spam calls
Buying Guide Image

All You Need to Know About Buying Phone SIM Cards

Budget

If what worries you most is the price, you should not look at anything other than the cost that the rates will have at the end of the month. Of course, if you are willing only to pay the cheapest contract, which means that you must comply with the conditions that it offers.

We, therefore, recommend taking a look at other characteristics of the offers in question, since what will end up costing you dearly is a rate that, despite being cheap, does not cover all your needs.

It will, therefore, be a waste of money. As a general rule, the more gigs the rate includes the higher its cost. This proportionality also applies to other services, such as the number of calls and free SMS.

Internet usage

Another factor to consider before choosing a contract is the data consumption that each one does on average per month. It is not the same to watch movies every day during the commute from home to work than to only check the mail from time to time.

Low consumption is for those who only need about 2 GB for email, WhatsApp, and spontaneous use of social networks and web browsers. Average consumption is for those who need between 5 and 10 GB for email, WhatsApp, GPS, social networks, web browsers, and spontaneous video playback.

High consumption is for those who need more than 10 GB for email, WhatsApp, GPS, social networks, web browsers, and video playback. Some companies include special benefits designed for those who spend the day on social networks.

Calls and SMS

Are you one of those who must make many calls a day for work? Or do you just spend hours and hours talking to your friends? If you are one of the first, your solution will be to choose a contract that includes unlimited minutes.

Instead, if you are one of the second and have a smartphone, you should notice if your friends also have one. It will be much easier and cheaper to talk to them on the phone from free applications like WhatsApp.

The same goes for SMS. Considering that with most rates, you have to pay an extra cost per message, it seems more sensible to use free messaging apps and thus save the cost of traditional text messages.

If you are concerned that your data will be consumed quickly, you should consider betting on companies that include features, with which you can use WhatsApp, Instagram, and other apps without spending a single GB.

Frequently Asked Questions (FAQs)

1. Can I buy just a SIM card for my phone?

If your phone is unlocked and compatible with GSM networks, you can purchase a new SIM card. However, if your phone is locked, you will need to unlock it before buying a new SIM card.

2. What does a phone SIM card do?

A phone SIM card is a computer chip provided by your carrier that allows you to connect to their network. It enables you to make calls, send texts, and access the internet. It can also be moved from one phone to another, allowing you to keep the same network, messages, and numbers.

3. What happens if you take out your SIM card and put it in another phone?

When you insert your SIM card into another phone, your phone number remains the same. A SIM card is associated with one phone number at a time, so it doesn't change even when moved to a different phone.

4. Can a phone work without a SIM card?

Yes, most features of modern iPhones and Android phones can be used without a SIM card. As long as you have access to Wi-Fi, you can use apps and services. You can even set up a free virtual phone number for making and receiving calls and texts.

5. Can I buy a SIM card without a plan?

Yes, you can buy a prepaid SIM card without signing a contract. However, you will need to register the SIM card and have an unlocked phone that supports the local frequencies.

6. How much does a new SIM card cost?

The cost of a SIM card itself is usually nominal and can range from $1 to $10.

7. What are the disadvantages of a SIM card?

One disadvantage is that SIM cards are at risk of being hacked. They can store sensitive information like email addresses, bank account details, social media accounts, and online purchases. Hackers with knowledge can access this information and potentially transfer it.

8. Does replacing a SIM card erase data?

No, replacing a SIM card does not erase data stored on your phone. Contacts, messages, apps, and other data unrelated to the SIM card will remain on the phone.

9. What information is stored on a SIM card?

A SIM card contains data such as user identity, location and phone number, network authorization data, personal security keys, contact lists, and stored text messages. This data allows a mobile user to utilize the features and services provided by the SIM card.

Editor's Notes

During our phone sim card research, we found 24 phone sim card products and shortlisted 10 quality products. We collected and analyzed 90,411 customer reviews through our big data system to write the phone sim cards list. We found that most customers choose phone sim cards with an average price of $5.29.

The phone sim cards are available for purchase. We have researched hundreds of brands and picked the top brands of phone sim cards, including Tello, TracFone, Boost Mobile, Verizon, US MOBILE. The seller of top 1 product has received honest feedback from 250 consumers with an average rating of 4.6.

Written by
Jerry Franklin Avatar

Jerry Franklin's persistent curiosity and research inspire a love of writing how technical things work and help him build a wealth of knowledge in computer equipment and other electronic tools. He has always enjoyed great pleasure in taking all things apart and researching how to put them together again since his childhood.

Phone SIM Cards Comparison Table

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#TOP10
Brand Tello TracFone Boost Mobile Tello Verizon US MOBILE SIMBROS EIOTCLUB Padfender SpeedTalk Mobile
Item Weight 0.634 ounces 0.16 ounces 0.211 ounces 0.317 ounces 0.317 ounces 1.44 ounces 0.317 ounces 0.88 ounces 0.64 ounces 2.39 ounces
Service Provider Tello TracFone AT&T Tello Verizon Prepaid US Mobile Verizon T-mobile & AT&T SpeedTalk Mobile SpeedTalk Mobile
Cellular Technology LTE LTE LTE, 4G, 5G LTE LTE 5G 4G 5G LTE 2G, 3G, 4G, 5G LTE, CAT-M, NB-IoT 5G, 4G LTE
Other display features Wireless - Wireless Wireless Wireless Wireless Wireless Wireless Wireless Wireless
FTB Score
ftb score rating icon 9.9
ftb score rating icon 9.8
ftb score rating icon 9.6
ftb score rating icon 9.6
ftb score rating icon 9.4
ftb score rating icon 9.3
ftb score rating icon 9.1
ftb score rating icon 9.1
ftb score rating icon 9.0
ftb score rating icon 8.9
Where to Buy