Best Phone SIM Cards of 2025

"I got this for my younger sister after switching from Lyca. The Tello SIM card worked perfectly, fitting well in the phone SIM tray, and the activation was a breeze. Transferring the existing number was super easy and completed in under an hour. This is the third Tello account in our household, and we've had zero complaints for over 2 years. Great affordable plans compared to the big carriers!"

"I find the SIM card to be a great purchase with fast delivery. While the service is affordable and easy to set up, my major complaint is the data throttling. After about a week of regular use, my data slows down drastically, making my phone nearly useless. If you only need basic text and calls, it might be fine, but I regret trying them."

"I'm very pro-privacy and was only able to activate the first Tello card without issues. However, when I tried to activate additional cards, they showed 'Pending' for 24 hours and then dropped off my history. Customer service asked for verification, which felt excessive given they already had my info. If you can get it activated, it's okay for simple use, but activation problems are frustrating."

"I found the ordering process smooth through Amazon. They provided a clear explanation for checking if my phone would work with Tello. While there was no guidance on SIM installation, I managed it. The activation went fairly smoothly, but porting my number from T-Mobile has been a bit challenging."

"I had a great experience with excellent customer service. I bought the phone for my daughter, and it works perfectly."

"While it’s not the best service, it does work for calls and texts. The cost is affordable, and the setup was pretty easy."

"I was really optimistic when I ordered this phone for an elderly lady. When it arrived, I was quite satisfied. The phone was neatly packaged and cleaned, and they even included a SIM card. If you're looking for a great phone at an amazing price, this is the right place. I hope I won't need another phone soon, but if I do, I will definitely recommend this company!"

"I'm not the most tech-savvy person, and I struggled to get this to work on my iPhone 7+. Unfortunately, there were no instructions included to guide me."

"I bought this to unlock a phone that wouldn’t activate with an American SIM card, and it worked flawlessly! It was exactly what I needed!"

"I needed a temporary phone solution for my in-laws visiting internationally, and this worked perfectly. It was easy to use and had fast activation. Best of all, it wasn’t scammy like Boost Mobile—no credit card required! I’ll definitely order again for future trips."

"I bought this SIM card for my dad during his visit. It worked great in NYC and is much more affordable than T-Mobile and other options. A solid choice for travelers!"

"I purchased this SIM for my iPhone during a trip. It activated well in the United States, but in Colombia and Venezuela, I faced issues with low call quality and no text messages. Still, it’s a good option for staying connected while traveling."

"I was tired of overpaying Sprint, so I switched to Mint. The setup was simple and only took about 5 minutes. The price is great, even after the introductory period. I've never noticed any slowdowns despite being a sub-carrier of T-Mobile."

"Mint Mobile is a fantastic value with easy setup and reliable coverage. I appreciate the affordable plans and the customer service has been helpful whenever I've needed assistance."

"I love Mint Mobile! The setup process was straightforward, and the coverage is just as good as T-Mobile. My data usage is low, but the 4GB plan is perfect for my needs."

"I found this product to be excellent and a great value. Once I installed it in my Samsung Galaxy S23 FE, Verizon activated the card without any issues."

"I struggled to find a SIM card locally and couldn’t go through the usual channels. This was a stress-free way to obtain the necessary electronic access for my used Verizon phone, which came without a SIM card."

"I installed this card in a new Galaxy S22 I bought from Amazon, but it didn’t work. After visiting the local Verizon store and calling for help, they told me it was an invalid SIM card. I’m not sure if it was the phone or the card, but I ended up returning both to Amazon."

"Activating this SIM was a breeze! I highly recommend it for its affordable rates."

"I ordered this for a friend, but the activation website was really confusing. It took days for the service to work, and I was charged monthly without knowing I enrolled. Total waste of time and money."

"I was worried about switching, but this provider has been excellent. Setting it up took less than 20 minutes, and calling and texting worked perfectly!"

"I found it smooth sailing once I realized I needed to turn on my Mobile Data. It’s perfect for traveling visitors who want to stay connected while on the road. Thanks to T-Mobile, the whole process was made easy!"

"I faced a tough time activating this card online. It took me five attempts to get through, with the site being quite glitchy and confusing. I even had to input a PIN sent to my email multiple times. The process was frustrating, and I ended up accidentally enrolling in autopay. On top of that, I received a lot of spam calls and texts, which is quite annoying. I wouldn't recommend SpeedTalk; there's too much hassle for what should be a simple service!"

"This is my second SpeedTalk SIM card, and I’m very satisfied! I love that it comes with an adjustable SIM card to fit different devices. The service is comparable to my own T-Mobile phone, and for just $5 a month, it’s unbeatable for emergency use. We have experienced reliable service with this SIM, and I appreciate the options for low-cost plans!"

"I bought 2 of these for my recent trip to the USA. They worked perfectly! Just follow the instructions: registering the SIM serial code is essential. I recommend ordering it weeks before departure and activating it 2 days prior to arrival. I had excellent internet and a local phone number from the moment I landed. No signal issues and good speed. I will definitely purchase again!"

"I was excited to use this SIM card during my stay in the US, but unfortunately, it barely worked. 1% of the time I was able to use it, and my phone number was unreliable too. I plan to initiate a return as I really expected better connectivity in a large city."

"I've ordered T-Mobile SIM cards from this company multiple times. The activation process has always been prompt and seamless. It's a fraction of the cost compared to signing up directly with T-Mobile. I highly recommend this product!"

"Before purchasing, I was skeptical due to mixed reviews, but I decided to try it because of the affordable price and fast shipping. Overall, it worked well for me after the activation process."

"I had a frustrating experience trying to activate the SIM card. It took five days to finally activate with T-Mobile's help. I wouldn't recommend this product due to its unreliable connection, especially in downtown Seattle."

"Initially, the SIM card didn't work when we arrived in the USA. After some confusion, we followed the small instructions that came with it, and it finally worked for us, allowing us to use it happily."