- FLEXIBLE PREPAID SIM CARD OPTIONS: With options for a three-in-one physical sim card (standard, micro, and nano sizes) or eSIM, we have the right SIM, ensuring compatibility with your 4G (minimum) GSM-unlocked, factory-unlocked or AT&T-compatible phone. Your phone must be AT&T VoLTE compliant to use H2O Wireless. H2O Wireless plans are prepaid cell phone plans and will not work with tablets, modems, routers, etc., but you may add external devices using the H2O Wireless plan's hotspot.
- AFFORDABLE UNLIMITED DATA PLAN: With H2O Wireless, access an unlimited data SIM card (4G / 5G data is only up to your plan allotment then lowers to a slower speed after the allotment has been met). Benefit from lightning fast 4G LTE/5G high-speed data, unlimited talk and text nationwide, and international calling without hidden fees, as long as your calls, text and data originate in the U.S.
- RELIABLE, UNINTERRUPTED COVERAGE: H2O Wireless operates on one of the largest networks in the U.S., providing uninterrupted service and clear calls. Whether you're in need of a prepaid data SIM card that offers support for streaming, chatting, messaging, browsing, or more, our plans ensure there are no gaps in your connection.
- CONVENIENT SETUP & RECHARGING OPTIONS: All you need is a unique (never been used with H2O Wireless) IMEI, EID and eBay order number to get started. Port in your current U.S. number or switch to a new phone number with ease and enjoy hassle-free activation with automatic data configuration. Simply recharge your pay as you go SIM card online anytime to maintain your service and adjust your cell phone SIM card plan as needed. At the expiration of your prepaid plan, top-up your service with JZN Market for $20/30-Days. Your SIM comes with an exclusive discount code to help you save on future top-ups. Enjoy 10% off every renewal when you enroll in autopay. Start saving effortlessly! Terms & Conditions apply.
- INTERNATIONAL COMMUNICATION MADE EASY: H2O US SIM cards offer unlimited international texting and calling from the U.S. to over 70 countries so you can stay in touch with loved ones back home. Traveling to America? We've got you covered. Headed north or south of the border? We offer roaming credit in Canada and Mexico, too! All calls, texts and data must originate in the U.S.


Customizable Plans
The H2O Wireless SIM will do wonders to your compatible phone effortlessly. This versatility saves you money on new hardware and makes switching carriers easy. Whether you're using an older compatible device or the latest smartphone model, this SIM card ensures you're not left behind in the digital age. This compatibility is particularly valuable for those who may not have the budget for new devices but still want access to modern mobile services.
Reliable Network Coverage
Experience the confidence that comes with H2O Wireless's prepaid SIM cards, operating on one of the largest networks in the U.S. Our commitment to providing uninterrupted service means you can make clear calls and access dependable data whenever you need it. Whether you're streaming your favorite shows, chatting with friends via messaging apps, or browsing the internet for information, H2O Wireless USA SIM Cards ensure that your communication remains consistent and reliable. We prioritize quality in our service offerings so that you can say goodbye to dropped calls and slow data speeds; with us, you can stay connected without interruptions or frustrations.