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US MOBILE

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

  • Based on 276 reviews
Condition: New
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$3.99 Why this price?
Save $35.98 was $39.97

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As low as $1 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

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FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Friday, Aug 7
Order within 58 minutes
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Model: DarkStar+Warp


Features

  • Includes two US Mobile SIM cards, one for the Warp Network and one for the Dark Star Network.
  • Easy activation. Get started in minutes and manage your lines any time!
  • 5G plans starting from $4/month
  • Unlimited Premium plan with up to 10 GB International Data
  • 24/7365 world-class customer support. Get help from a real person within seconds

Description

Get on the nation’s most cutting-edge 5G network with the best unlimited plan. Or build your own plan. We believe people are paying too much for their cell phone service. That's why we started US Mobile. At US Mobile, you will pay as you go for the talk, text, and data you need; plus, you will enjoy full insight and flexibility to change your plan as you go. Our customers are unique, and so are their cell phone plans. Founded to liberate American mobile users from expensive and inflexible contracts, US Mobile is a prepaid cell phone carrier offering nationwide 5G & 4G LTE. We believe that people are paying way too much for their cell phone service, especially if they are on unlimited plans. That's why we started US Mobile. At US Mobile, you will pay as you go for the talk, text, and data you need; plus, you will enjoy complete insight and flexibility to change your plan as you go. Our customers are unique, and so are their cell phone plans. Share data across multiple lines, including tablets

Brand: US MOBILE


Service Provider: US Mobile


Cellular Technology: 5G


Product Dimensions: 8"L x 6"W


UPC:


Brand: US MOBILE


Service Provider: US Mobile


UPC: 850045183370


Number of Items: 2


Model Number: DarkStar+Warp


Manufacturer: US Mobile


Warranty Description: No Warranty


Cellular Technology: 5G


Item Dimensions L x W: 8"L x 6"W


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Aug 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Works Great, Saved me money over Postpaid plans!
Model: DarkStar+Warp
I bought this because I was looking to get off an expensive Postpaid plan. US Mobile had a great Deal and using this with a Sim based Phone I was able to save money over my Postpaid plan and get great customer service throughout the activation! Setup was easy, activation was easy, and both functionality and Data coverage is great! It includes both Warp(Verizon) and Dark Star(AT&T) sim cards. Would Recommend! ... show more
Reviewed in the United States on July 30, 2026 by VS2929
    • Excellent Solution for International Phones – Dark Star Saved the Day
Model: DarkStar+Warp
I bought this US Mobile SIM for my father-in-law, who is visiting from India for several months. He uses a Samsung A26, and we quickly discovered that many mainstream prepaid carriers in the U.S. either didn't support the phone properly or had compatibility issues. We wanted something affordable, prepaid, and reliable. Initially, we explored other network options, but Verizon compatibility was a problem for his device, and the phone rejected a standard AT&T SIM. I was running out of options until I tried the US Mobile Dark Star SIM. To my surprise, it activated without any issues and worked right away. That alone was a huge relief. What impressed me even more was the network performance. Our family frequently travels beyond cities and suburbs—into farms, rural areas, state parks, national parks, campgrounds, and remote locations where coverage can often be hit or miss. Dark Star performed remarkably well in most of these areas and consistently gave us the connectivity we needed for navigation, communication, and peace of mind. One memorable experience was when a phone was accidentally left behind on a farm miles away from the nearest city. Thanks to the network connection, we were able to locate it and recover it without much trouble. That moment alone made this SIM worth every penny. For international visitors bringing phones from overseas, especially those who may run into compatibility headaches with U.S. carriers, US Mobile Dark Star was a lifesaver. Affordable, easy to activate, and surprisingly reliable in both urban and rural areas. Highly recommended for travelers, visiting family members, and anyone using an international phone in the U.S. 👍📱🌲🚗 ... show more
Reviewed in the United States on July 13, 2026 by NRI Desi Bong
    • If you still haven't bought your SIM kit something is very wrong, do it now!
Model: DarkStar+Warp
Rated best MVNO in the country by Wired Magazine and to give them a try will show you why they received that rating first hand. Navigating the website is super simple but not to worry help is right there if you need it 24/7. And while you probably won't need it telephone support is also available AND IT'S USA BASED!!!!. Call quality is simply perfect and so far no data issues as well, both of which that normally suffer on MVNO's. I was so happy I moved my entire family off Consumer Cellular (which I quickly developed a special hatred for too many reasons to list) and ZERO regrets. They even instantly seamlessly support ESIM! Look mom no SIMs harmed here :) ... show more
Reviewed in the United States on July 6, 2026 by GaryD
    • Not as promised...
Model: DarkStar+Warp
Very complicated to set up especially if you want to take advantage of the free trial they offer on the website as they want you to port your number from the he old company to their company. I purchased the SIM card with the intention the switch from a carrier to another to test how it works and the signal in my area but even though they promise that the SIM card in my case the dark Star it will work on AT&t and T-Mobile and you can switch from one another they will not let you switch from a carrier to another if you make use of the trial and they will ask you to buy another card if you want to try another carrier. Their customer service people are very slow to understand what are you talking about and most of the time it will take at least 5 minutes to answer to your questions if you are texting with them which is extremely annoying and unprofessional. They have a lot of plans and they are so confusing that nobody knows what is going on. If you start a new line from their app and have auto pay enabled they automatically enroll you in the 45 dollars plan, if you want the cheaper plan at $25 you have to opt specifically for it. Maybe it's only me but I don't think this is a very good company to do business with your experience might different unfortunately I do not have a good experience so far. ... show more
Reviewed in the United States on September 22, 2025 by Eli
    • Love US Mobile — best bargain in the business.
Model: DarkStar+Warp
I’ve tried a lot of prepaid carriers, and US Mobile is the one I keep coming back to. The plans are genuinely affordable, the coverage is solid, and the speeds are better than you’d expect at this price point. Setup is easy, the app is clean, and support is actually responsive. If you want maximum value without sacrificing performance, this is the one. ... show more
Reviewed in the United States on July 23, 2026 by G
    • Read the Product Description. Ignore the photos..
Model: DarkStar+Warp
I love US Mobile's service. I have four lines with them. Easy to port numbers, excellent web site, great customer support, fantastic prices, etc. Probably the best value and service in wireless. However, the pictures presented are misleading. The sim kits that I have ordered do not include a Light Speed card, nor is there such a thing as a universal sim card that I'm aware of. Read the product description and expect to receive sim cards for Warp (Verizon) and Dark Star (AT&T). I had to order two Light Speed (T-Mobile) sim cards directly from US Mobile. To their credit, they sent them free of charge after I complained, but their advertisements regarding sim kits should be more clear. ... show more
Reviewed in the United States on July 28, 2026 by C Sean
    • great product
Model: DarkStar+Warp
quick and easy to use
Reviewed in the United States on July 25, 2026 by Terry Yang
    • Great! Better though if it also included the Light Speed (T-Mobile) SIM card
Model: DarkStar+Warp
Great! Better though if it also included the Light Speed (T-Mobile) SIM card. Also 50GB+ international roaming (rather than 20GB like other US providers).
Reviewed in the United States on July 31, 2026 by Josephine

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