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Ultra Mobile

8GB Prepaid SIM Kit, 1-Month Plan on the T-Mobile 5G Network | Unlimited calling to 90+ international destinations, U.S. talk, global text, hotspot, Wi-Fi Calling, keep your phone & number

  • Based on 1,313 reviews
Condition: New
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As low as $4 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

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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.

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Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, Aug 25
Order within 23 hours and 34 minutes
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Size: 01-Month, 08GB


Features

  • STAY CONNECTED WORLDWIDE: Unlimited calling from the U.S. to 90+ international destinations including India, Mexico, Canada, China, the U.K. and more.
  • RELIABLE NATIONWIDE COVERAGE: Enjoy 8GB of high-speed 5G/4G LTE data on the T-Mobile 5G Network.
  • TRAVEL ACROSS NORTH AMERICA: Unlimited talk and text in Mexico and Canada plus international roaming credit.
  • BRING YOUR OWN PHONE: Activate your compatible unlocked phone with the included 3-in-1 SIM card or eSIM. Keep your number or get a new one.
  • NO CONTRACTS: Prepaid wireless with no annual contracts, no credit checks, and no hidden fees.

Description

UNLIMITED CALLS FROM U.S. TO 90+ DESTINATIONS Stay connected to friends and family across the globe with international calls from the U.S.. See our list of destinations below. Unlimited Mobile & Landline Calling from the U.S. to: Unlimited Landline Calling from the U.S. to: *International rates and destinations are subject to change at any time without notice. See site for the latest rates and info. Most phones are compatible with our network. If you're unsure, visit the Ultra Mobile Bring Your Own Phone (BYOP) webpage to check your phone's compatibility. An unlocked phone is one that is not tied to a specific carrier or phone plan, allowing you to move freely among multiple carriers to find the best phone plan for you. Before activating, decide whether you want to keep your phone number or get a new one. Follow the directions included in your SIM kit to activate. You have the option to keep your current phone number or get obtain a new one. Our 3-in-1 SIM card includes standard, micro, and nano sizes. Punch out the SIM that fits your device. Insert SIM into your phone using the included SIM ejector tool and start enjoying your service.

Brand: Ultra Mobile


Service Provider: T-Mobile


Cellular Technology: GSM


Product Dimensions: 5.5"L x 4"W


Unit Count: 3 Count


Brand: Ultra Mobile


Service Provider: T-Mobile


Unit Count: 3 Count


UPC: 853455004150


Number of Items: 1


Item Weight: 18.42 g


Model Number: 03-Month, 08GB


Manufacturer: Ultra Mobile


Cellular Technology: GSM


Item Dimensions L x W: 5.5"L x 4"W


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Aug 25

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.

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Top Amazon Reviews

    • straight forward. reliable, pre-paid service
Size: 01-Month, 04GB
straight forward. service is reliable
Reviewed in the United States on July 7, 2026 by casey
    • Works perfect
Size: 01-Month, 04GB
I like this it works perfect
Reviewed in the United States on July 16, 2026 by My business
    • Illegal advertising by seller. Terrible Service
Size: 01-Month, 04GB
Illegal advertising by seller. Package front and back both state: "Unlimited Talk, Text, & Data". But on the front bottom, it states, "3G Data", and the listing details state: "3GB of High-Speed 5G 4G LTE Data." How can it be limited to 3G of data if it clearly states "unlimited data" on the package front and back. I contacted the seller, Ultra Mobile" about this and asked the same question. They referred me to Amazon to complain to you, if I received the wrong SIM card. However, I was starting to message back to them in the chat that I did not get the wrong SIM, I got the one I ordered, but the seller has put misleading info on the package. Before I could even send that reply message, the chat rep from Ultra Mobile ended the chat as soon as they sent me the message saying to contact Amazon about it. Set up was very complicated, took a very long time to try and get this all straightened out. The activation instructions said I have to change the settings for Access Point Names, which was a long process. But it also seemed as though the Access Point Names were automatically configured during activation. I am unable to access voicemail unless I reset network settings to factory default settings on my phone, which I don't want to do, since I am only trying out this SIM on my phone, and plan to revert back to my Tracfone network. If I reset network settings, all data, bluetooth, & wifi settings will be deleted. That would mean that when I reinstall the Tracfone card, I will not be able to access my voicemail on that network, plus I won't be able to log into my wifi or use my previously paired bluetooth devices with my phone. When the phone is initially set up, and I call my home phone from the mobile using the SIM card, it comes up as "April Bailey", which is not me. There is no way to resolve or change this. Ultra Mobile said they would escalate that, but I dont know if they will fix it. I have had two chats with their customer service, which both went about 1 hour. The chat reps seem to be chatting with multiple people at the same time, so their responses usually take a very long time & they never admit to chatting with multiple people simultaneously when asked directly about it. They claim they are checking resources or having system issues. Most of the chat time is spent waiting for them to respond. When I asked why the physical packaging says "unlimited data" on the front and back, while the plan says "3GB of data", they could not explain that and told me to contact Amazon, then they dumped me off the chat without warning, which was so rude and unprofessional. Both chat experiences were bad. I did try calling one of the 80 countries and enjoyed the free call and text on that. But I would not recommend this company due to the above issues. I also reported them to Amazon, who said they would escalate the issue of false advertising. ... show more
Reviewed in the United States on February 20, 2024 by Leonard Lacroix
    • Good
Size: 01-Month, 04GB
Good
Reviewed in the United States on July 17, 2026 by saw say
    • Pretty good SIM card for USA
Size: 01-Month, 12GB
At first I bought it would be a simple plug and play like other countries. That is not correct. I found the setup instructions a bit unclear and setting up through sms only didn’t work at all. However, once I downloaded the ultra app (which I didn’t want to do at all), the setup was relatively smooth. Also it was nice to be able to monitor the data usage through the app. Only twice did the data not work and I simply closed the app and restarted the phone and it worked again. I was mostly in the countryside so reception was usually not amazing but still acceptable for navigation and messaging. One note: I had access to WiFi a lot so didn’t use even half the data purchases but wanted to have the biggest data just to be safe. It might be better/cheaper to get the 3gb and add more manually once it is out. I don’t know why it is so hard to get a data SIM card in the USA but this is a good option amongst a lot of bad options. Also I got a local phone number to use for free for phone calls and sms which was very useful ... show more
Reviewed in the United States on June 27, 2022 by Dirk T
    • Funciona en Venezuela. SMS a veces lento
Size: 01-Month, 04GB
Al instalar la SIM Ultra Mobile como SIM #2 en el celular Xiaomi, en ajustes (settings) aparece T-Mobile. Ultra Mobile es un Mobile Virtual Network Operator (MVNO) que compra y revende cobertura T-Mobile. El 1 de mayo 2024 T-Mobile compró a Ultra Mobile. Compré la SIM con 3GB por $19 mensuales y lo utilicé tres semanas en Texas, Florida, Panamá y Venezuela para llamadas telefónicas, mensajitos, data, WhatsApp etc. En Venezuela, sí recibo mensajitos de claves de bancos, incluyendo BofA y familiares. Con roaming, probé llamanado a USA estando en Panamá y Venezuela. Funciona, pero mejor llamar WhatsApp via WiFi que no tiene costo. A fin de reducir la mensualidad, al vencer el mes, cambié el plan mensual de 3 GB $19 al mínimo, $15 mensual. Al hacer un solo pago de $120 por un año, hay descuento que equivale a precio de $10 mensuales. Ofrecen seis planes. Determine el conveniente según el uso que le va a dar. T-Mobile es mucho más costoso. En Venezuela, Ultra Mobile trabaja con partners Movistar y Digitel, por tanto, nótese que como cualquier celular en Venezuela, depende de la cobertura y congestión del operador local. A veces los mensajitos tardan en llegar a Venezuela, dependiendo de la hora del día. Encuentro que entrando y saliendo de modo avión en el teléfono, y también mensajitos en la app de Google Messages en la computadora con Windows 11, mensajitos parecieran llegar más rápido. Ultra Mobile es buena solución para cobertura internacional, Venezuela incluida. ... show more
Reviewed in the United States on May 13, 2024 by GGS Engineering
    • **** **** ****
Size: 01-Month, 04GB
ok
Reviewed in the United States on July 22, 2026 by anthony j cipriano
    • Staying never leaving
Size: 01-Month, 12GB
Verizon was giving me a hard time trying to pay my bill. I was without a phone over a week. They were overcharging me for stuff I wasn't even getting. I came across this and I have not looked back. Ultra mobile a part of T-Mobile network I'm getting unlimited talk and text 5g network and 10gb data a month for 29. Verizon texts didn't work I had to use a weird service, phone only had 4g, 15g. Data 45$ a month. No contest. It was super easy to activate and I can easily pay my bill on the app. I feel stupid for staying with Verizon for so long and getting ripped off. ... show more
Reviewed in the United States on May 29, 2025 by LaLaRich

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