H2O Wireless is an American prepaid GSM phone and mobile internet service. It is a mobile virtual network operator (MVNO), which uses AT&T’s GSM 4G LTE network. It attracts numerous subscribers with its reliable services, high-quality mobile devices (you can buy one from them or bring your own phone), international calling, and nationwide affordable plans (either monthly or pay as you go).
The provider is especially popular among travelers and other people who value freedom over commitment. H2O’s Pay As You Go prepaid plan and SIM card allow maximum freedom and the ability to pay exactly what they get and just for as long as it suits their needs. In this article, you will find out all there is to know about H2O SIM cards and plans. Let’s dig right into it.
What Is The Reason For Choosing H2O Prepaid SIM Card?
The H2O prepaid SIM card is a perfect choice for travelers, as they rely on their smartphones and other wireless devices to find their way from point A to point B, to search for a good restaurant, book a hotel room, purchase bus tickets, and stay in touch with their loved ones while they are on the road.
Nowadays, many hotels, restaurants, and other establishments offer a free Wi-Fi connection, however, some of these connections are not to be trusted and in many areas, travelers will not be so lucky to find any wireless connection whatsoever. As such, they will have no choice but to rely on mobile data. However, in order to avoid roaming fees, it is best to choose an H2O prepaid SIM card.
Why H2O? There are numerous good answers to this question, including:
- H2O is one of the best prepaid providers in America
- H2O uses AT&T’s network and thus instantly gives you access to one of America’s largest networks
- H2O offers excellent coverage
- H2O’s Pay As You Go plan comes with no contracts, no hidden fees, and a 10% Auto Pay discount
- Each prepaid plan offers affordable rates ($0.05 for talk and text and $0.10 per 1 MB of used data an MMS)
- You can choose between 4 different prepaid options – a $10 ($9.00 with Auto Pay) plan with 90-day expiration, a $20 ($18 with Auto Pay) plan with 90-day expiration, a $30 ($27 with Auto Pay) plan with 90-day expiration, and a $100 ($90 with Auto Pay) plan with 12-month expiration.
- No roaming fees, no activation fees, no incoming call fees
- Simple recharging options – online at h2owireless.com/recharge/cc, at a store (find a store at h2owireless.com/stores), or by signing up to Auto Pay.
- Unused balance will carry over and your expiration date will be extended as long as you recharge before the airtime expires.
What Are The Features Of H2O Wireless Triple 3-in-1 Smart SIM Card?
The H2O Triple SIM is a smart SIM card that comes in 3 sizes – standard, micro, and nano. You can order the SIM card online or purchase it at a store and simply punch out the size that will fit your phone. The SIM card is compatible with most unlocked GSM phones, as such, you can use it with phones purchased directly at H2O Wireless, AT&T, and other unlocked GSM devices. It features automatic and effortless configuration and comes preloaded with a selected plan.

Online, you can purchase the device at h2owireless.com/product-details/SIM020. Simply select the Triple SIM card and press ‘Choose A Plan’. Once you do so, you will be able to select between 5 Unlimited plans and 4 Pay As You Go plans. Read about the exact plan options in the ‘What Are the Plans of H2O SIM Card?’ section of this article.
Select a plan by pressing ‘Buy Plan’. Doing so will automatically redirect you to your shopping cart, where you will be able to find both your free Triple SIM card and your plan. Here you will be able to enter any promo codes you may have and then, simply press ‘Proceed to checkout’. Provide the personal and shipping details and the payment information, follow the on-screen prompts, and place your order. You can expect to receive your Triple SIM card in a matter of days.
Read one of our past articles New Straight Talk Bring Your Own Phone 3-Size-In-1 SIM Card Kit AT&T Compatible
What Are The Plans Of The H2O SIM Card?
When it comes to plans, H2O allows you to select either an Unlimited plan with fixed monthly rates or a Pay As You Go plan, which allows even more freedom. Below, you can see exactly what each of these plans offers.
Unlimited Plans
- Basic Plan. It comes with unlimited talk and text, 2 GB of high-speed data, and unlimited low-speed data, and it costs $18 a month ($20 without Auto Pay).
- Value Plan. It comes with unlimited talk and text, 6 GB of high-speed data, and unlimited low-speed data, and it costs $27 a month ($30 without Auto Pay).
- Premium Plan. It comes with unlimited talk and text, 15 GB of high-speed data, and unlimited low-speed data, and it costs $36 a month ($40 without Auto Pay).
- Unlimited Plan. It comes with unlimited talk and text, unlimited high-speed data, a $10 international roaming credit in Canada and Mexico, and it costs $45 a month ($50 without Auto Pay).
- Unlimited XL with Hotspot. It comes with unlimited talk and text, unlimited high-speed data, a $20 international roaming credit in Canada and Mexico, and unlimited data with a hotspot. It costs $54 a month ($60 without Auto Pay).
Find out more about H2O Unlimited Plans at h2owireless.com/plan/monthly.
Pay As You Go Plans
- $10 Plan. It comes with 90 days of service and offers affordable rates ($0.05 a minute or text message and $0.10 per MB of data or MMS).
- $20 Plan. It comes with 90 days of service and offers affordable rates ($0.05 a minute or text message and $0.10 per MB of data or MMS).
- $30 Plan. It comes with 90 days of service and offers affordable rates ($0.05 a minute or text message and $0.10 per MB of data or MMS).
- $100 Plan. It comes with 365 days of service and offers affordable rates ($0.05 a minute or text message and $0.10 per MB of data or MMS).
Find out more about H2O Pay As You Go Plans at h2owireless.com/plan/minute.
H2O Wireless also offers Multiline Plans, however, this option cannot be selected when purchasing a Triple H2O SIM card. You can learn more about their Multiline Plans at h2owireless.com/multiline-intro.
Which Phones Are Compatible With The H2O SIM Card?
As we have mentioned, before, H2O enables customers to buy a mobile device directly from them (either online at h2owireless.com/shop or in any of their local retailers) or to bring their own device.
H2O SIM card is most certainly compatible with the devices, which can be purchased directly from H2O Wireless and are listed below:
H2O SIM card compatible Android phones
- Nokia 5.4
- Samsung Galaxy A51
- Samsung Galaxy S21+ 5G 128 GB
H2O SIM card compatible iPhones
- Apple iPhone SE 64 GB
- Apple iPhone SE 128 GB
- Apple iPhone SE 256 GB
- Apple iPhone XR 64 GB
- Apple iPhone 7 32 GB
- Apple iPhone 11 64 GB
- Apple iPhone 11 Pro 64 GB
- Apple iPhone 11 Pro 256 GB
- Apple iPhone 12 mini 64 GB
- Apple iPhone 12 mini 128 GB
- Apple iPhone 12 mini 256 GB
- Apple iPhone 12 64 GB
- Apple iPhone 12 128 GB
- Apple iPhone 12 256 GB
- Apple iPhone 12 Pro 128 GB
- Apple iPhone 12 Pro 256 GB
- Apple iPhone 12 Pro 512 GB
- Apple iPhone 12 Pro Max 128 GB
- Apple iPhone 12 Pro Max 256 GB
In addition, an H2O SIM card is also compatible with most unlocked GSM phones, including AT&T devices, devices purchased from another AT&T MVNO, T-Mobile, T-Mobile MVNO devices, and other compatible GSM phones.
You can read one of our past articles T-Mobile SIM Card Activation Guide
How Do I Know If My Phone Is Compatible With The H2O SIM Card?
In case your phone is GSM and not locked to any other carrier or network, it is a pretty strong indicator that it is in fact compatible with H2O SIM cards and services.
However, if you are not certain, you can always use an online IMEI phone compatibility checker. Since H2O doesn’t offer its own phone compatibility checker, you can find one online. Simply search for the following keywords and you will be able to find it: »H2O Wireless phone compatibility checker«.
Once you find an online phone compatibility checker, you will probably be required to enter your phone’s IMEI number and press ‘Check’. In case you don’t know your phone’s IMEI number, dial *#06# on your phone and you will be able to locate your IMEI number.
Once you find it and type it into the phone compatibility checker, the system will inform you if your phone is compatible with H2O SIM cards and services.
In case you have established that your phone is compatible with H2O, you will simply be asked to purchase your free SIM card and your plan at h2owireless.com/product-details/SIM020. Then, you will just be required to activate your phone and enjoy your service.
How Can I Configure/Activate My SIM Card For H2O Wireless?
You can activate your H2O service and either receive a new number or transfer your current number. To do so, follow one of the two options below.
Activate your H2O service and receive a new number:
- Go to h2owirelessnow.com/register and create an H2O account.
- Under the ‘Activate’ tab choose ‘Get a new number’.
- Enter your unused H2O SIM card number.
- Choose a payment method.
- Select the area code and city you would like the number to have and fill out the payment information.
- Press ‘Activate’ and you will get a new H2O number.
- Afterward, insert your H2O SIM card into your phone and turn it on.
- Your smart SIM will configure your data settings and then, you will be able to use your H2O service. In case the configuration doesn’t happen automatically, follow the process below.
Activate your H2O service and transfer your current number:
- Go to h2owirelessnow.com/register and create an H2O account.
- Under the ‘Activate’ tab choose ‘Transfer your number’.
- Provide all the required information, including your email, billing address, your current carrier’s account info, your H2O SIM card info, and select a plan you wish to activate.
- Once you fill out all the boxes, press ‘Submit’. Your number will be automatically transferred to H2O in a matter of hours (it usually takes 1-2 business hours and up to 24 hours).
- Afterward, insert your H2O SIM card into your phone and turn it on.
- Your smart SIM will configure your data settings and then, you will be able to use your H2O service. In case the configuration doesn’t happen automatically, follow the process below.
Setting up your smartphone and H2O SIM card is simple. All you have to do is follow the configuration steps below. To do so, visit h2owireless.com/simconfig.
- Step 1: Enter your phone number and receive a password via text message.
- Step 2: Log in with the password you have received.
- Step 3: Enter updated configuration settings into your mobile device.
What Benefits I Get If I Activate H2O SIM Card
When you switch to H2O Wireless and activate your H2O SIM card and service, you will get lots of benefits, including the ones listed below.
- You will receive up to 1 GB of data at 4G LTE speeds
- You will receive unlimited talk, text, and international calls
- You will get access to AT&T’s nationwide coverage
- You will get either an unlimited monthly plan or a pay as you go plan with affordable rates, no contracts, no hidden fees, and a 10% Auto Pay discount
- You will get no roaming fees, no activation fees, no incoming call fees
- Your unused balance will carry over and your expiration date will be extended as long as you recharge before the airtime expires.
In case you also need information AT&T SIM Card Activation Guide
How Do I Get A Replacement SIM Card For H2O Wireless?
There are two ways to get a replacement SIM card for H2O Wireless.
- You can either get a replacement H2O SIM card by visiting a local store and requesting a replacement SIM card. You will instantly receive one and be able to activate it.
- You can either get a replacement H2O SIM card by visiting H2O Wireless’s official website and make the request there. In this case, make sure your device is compatible with an H2O SIM card. In addition, you will be required to activate the card and the phone.
To activate your replacement SIM card, follow these steps:
- Go to H2O’s official website.
- Select ‘Activate’ and then get a new SIM number.
- When asked, provide your SIM card number.
- Select your preferred area code and city.
- Press ‘Activate’.Your replacement SIM card is now ready to use.
To configure your replacement SIM card, follow these steps:
- Make sure your information is safely stored on your SIM card.
- Open your SIM card slot, take out the small chip, and carefully insert the replacement SIM card. Slide the back end piece back into its place.
- Turn on your phone.
How To Set Up H2O SIM APN Settings?
To set up H2O SIM APN settings on an Android phone, follow the steps below.
- Go to ‘Settings’ and press ‘Mobile networks’.
- Select ‘Access Point Names’. Once you do so, press ‘Add’ on the right side.
- Click on ‘Name’ and add any name you want.
- Click on ‘APN’ and enter ‘Prodata’. Press OK.
- Click on ‘Username’ and enter ‘None’. Press OK.
- Click on ‘Password’ and enter ‘None’. Press OK.
- Click on ‘MMSC’ and enter mmsc.mobile.att.net. Press OK.
- Click on ‘Proxy’ and enter proxy.mobile.att.net. Press OK.
- Click on ‘Port’ and enter 80. Press OK.
- Click on ‘Authentication type’ and select ‘None’.
- Click on ‘APN type’ and enter ‘default,supl, mms’. Press OK.
- Click on ‘APN protocol’ and select ‘IPv4/IPv6’.
- To save the configuration, press the three buttons in the top right corner and press ‘Save’.
- Go back to ‘Access Point Names’ and select the name you have created. Your phone should automatically reset your APN settings.
H2O SIM Card Related Things You Should Know
Can I Get H2O Free SIM Card?
Yes, all H2O SIM cards are free. You will just have to pay for the plan that comes with it.
Is H2O SIM Card Support CDMA or GSM?
H2O Wireless is an AT&T MVNO and it uses GSM technology and phones.
Why H2O Triple SIM?
It’s called a triple SIM because it comes in 3 different sizes – standard, micro, and nano. You can use the size that will fit your phone.
How Much do H2O Wireless Regular SIM Cards Without Plans Cost?
If you would purchase just the SIM card without a plan, it would cost $3.00, however, to use it, you must purchase a plan anyway.
What Do I Get With the H2O Wireless Smart Prepaid Card?
You can either get just the prepaid card or you can get one with a plan included. The regular SIM card doesn’t come in 3 sizes either. This SIM card will only work with H2O, AT&T, and other unlocked GSM phones.
Does H2O SIM Card Support 5G?
Yes, an H2O SIM card does support 5G. Moreover, access to AT&T’s nationwide network will allow you to use both 4G LTE coverage and 5G, wherever it is available. You can see where 5G coverage is available at h2owireless.com/coverage by simply entering the address, ZIP code, or state where you wish to check the coverage.
Can I Transfer My H2O SIM Phone Number to Another Phone?
Yes, you can. You can do so by contacting H2O customer service at 1-800-643-4926 or by dialing 611 from your H2O device. The service is available every day from 9 am to 12 am.