Mint Mobile vs Ultra Mobile: which multi-month prepaid carrier is the best?

As sister companies, both Mint Mobile and Ultra Mobile offer some of the best cheap cell phone plans on the market right now - especially when it comes to bang for the buck. They both operate similarly, with flexible buy-in-bulk multi-month plans, generous data allowances, and 5G data speeds as standard on all plans.As we all know, Mint Mobile is the carrier that's really making waves right now thanks to its high-profile ad campaigns, but that doesn't mean Ultra Mobile doesn't offer some great plans in its own right. In this article, we're going to give you the low-down on how these two prepaid phone plans differ and who they're generally looking to cater to. If you're on the fence, we'll also weigh in with an overall verdict on which one we think is the best for most users too.Two excellent prepaid carriersMint Mobile: prepaid plans from $15 a monthWith generous data allowances and cell phones for as little as $15 a month, it's easy to see why Mint Mobile is one of the most popular carriers out there right now. With a flexible 'buy-in-bulk' payment scheme, Mint Mobile plans offer a number of compelling plans for all types of user. Remember though, to get the lowest monthly rates possible with Mint you'll need to sign up for a lengthier plan - and pay upfront.5GB: $15/mo | 15GB: $20/mo | 20GB: $25/mo | Unl: $30/moUltra Mobile: prepaid plans from $10 a monthSister company to Mint, Ultra Mobile also offers the same excellent 'buy-in-bulk' pricing with a ton of great plans to choose from. Unlike Mint, however, Ultra Mobile also features options for single-month plans and ultra-budget low-data allowance options. It's also got free international calling and text to over 80 countries with its plans, making it a great choice for those who are visiting the US.4GB: $13/mo | 8GB: $17/mo | 12GB: $20/mo | Unl: $34/moPlans, coverage and pricingBoth Mint Mobile and Ultra Mobile have pretty similar 'buy-in-bulk' pricing schemes where you'll get the best deal overall if you commit to a longer service period. While there are still no service contracts to sign, you will, for example, get the lowest monthly rate on average with each service if you sign up for a yearly plan.Key factsNetworkMint: T-MobileUltra: T-MobilePricesMint: $15 to $30/moUltra: $10 to $59/moPlan lengthMint: 3 mo, 6 mo, 1 yearUltra: 1 mo, 3 mo, 6 mo, 1 yearUltra Mobile does, however, have the option for a single-month plan - which is more like what you'd expect from a traditional prepaid carrier. This one's great if you simply need a temporary SIM card for a burner device since you can simply pay $19 upfront and get a full month of service. In comparison, you have to spend at least $45 to get the cheapest SIM on Mint Mobile for a 3-month plan.Ultra Mobile has also recently, as of mid 2025, tweaked its entire line-up of plans to include more data, and in some cases, cheaper monthly prices. The gap between the two carrier's is closing quite rapidly now, although Mint still has the overall edge in terms of a cheap unlimited plan. The carrier's unlimited plan is a little cheaper at $30/mo on average if you pay for a full year upfront, and Mint also regularly offers new customer discounts.Both being T-Mobile carriers, coverage will essentially be the same regardless of which service you pick. If you'd like to see what coverage is like in your area, then you can use T-Mobile's own coverage checker right here.Winner: drawPerks and featuresAgain, on the surface, both carriers offer very similar perks and features overall, with 5G data speeds where applicable, free mobile hot-spotting, and unlimited talk and text.Key factsUnlimited 5G data speedsMint: uncappedUltra: uncappedMobile hotspotMint: free (10GB max on unl. plan)Ultra: free (25GB max on unl. plan)StreamingMint: 480p video (on unlimited)Ultra: 480p video (on unlimited)International callsMint: free to Mex and CanUltra: free call and text to 80+ countriesThings do however start to differentiate when you look at things like international calling - of which Ultra Mobile puts more of a focus on with its plans specifically.For example, While you do get free calling and texting to Mexico and Canada with Mint, Ultra on the other hand offers free calling and texting to over 90 international destinations. This small feature positions Ultra Mobile as the primo option for tourists and international visitors looking for a cheap burner SIM card.Mint doesn't really bake-in a lot of international features for its plans since they're most likely intended primarily for a domestic audience. The Mint Unlimited plan is a lot cheaper per month though for those who don't need international calling outside of Mexico and Canada.As of 2024, both carriers feature family plan support. Mint's family plan supports up to five lines at a time and allows you to get each line at the cheapest (yearly) rate while only having to pay for three months at a time. It's technically not a saving versus paying for the lines separately but it allows you to save time by combining several lines into one account - and you'll have to pay way less upfront, too.Ultra's family plan lets you pay for additional lines on the monthly unlimited data plan for $24 per line. While you'll still have to pay $49 per month for the first line, adding up to five lines can equates to a total of $145 per month for a total saving of $100. Again, having multiple lines under a single account is super handy for cutting out the paperwork and admin.Winner: drawMint Mobile vs Ultra Mobile: the bottom lineEven though the two services are extremely similar on paper, it's easy to see both these carriers cater to two different types of cell phone users. If you're looking for a cheap single-month plan to use in a burner device or need international calling, then there's really no competition here - Ultra Mobile is the best choice.That said, for most domestic users in the US, Mint Mobile will offer vastly better value overall when it comes to long-term plans with bigger data allowances. Since the use case for Ultra Mobile is quite niche, we'd generally say Mint Mobile is the better choice for most people right now.Winner: Mint Mobile