Tello

Tello Mobile SIM Card Review

4.3 / 5 · our rating

Reviewed by Sarah Johnson · Published

Discover Tello Mobile's versatile SIM card for affordable prepaid plans with nationwide coverage and no contract. Perfect for budget-conscious users.

Tello Mobile SIM Card Review

The verdict

Tello Mobile's SIM card offers unbeatable value and flexibility for budget-conscious consumers.

Why we recommend it

NO CONTRACT: Pay $5 - $25/month for a fully customizable phone plan - choose your talk, text, and data with no strings a

UNIVERSAL SIM CARD INCLUDED: The kit contains one three-in-one SIM card (nano, micro, and standard sizes) to fit most un

NATIONWIDE 5G COVERAGE: Stay connected coast to coast with nationwide coverage on America's largest 5G network

INTERNATIONAL CALLS TO 60+ COUNTRIES: All Tello plans include international calling to over 60 countries

EASY ACTIVATION: Bring your own phone and activate your SIM on the Tello website; check your phone compatibility and cov

Pros

  • Affordable customizable plans
  • No long-term contracts
  • Nationwide 5G coverage
  • Easy activation process
  • International calling to over 60 countries

Cons

  • Mixed reviews on device compatibility
  • Limited customer support options

Gallery

Full review

Overview

Tello Mobile has emerged as a strong contender in the prepaid SIM card market, capturing the attention of budget-conscious consumers. This SIM card offers an attractive range of customizable phone plans starting as low as $5 per month, making it one of the most affordable options available today. With a solid rating of 4.3 out of 5 stars from over 3,800 reviews, Tello Mobile has established itself as the number one bestseller in the SIM Cards & Prepaid Minutes category on Amazon. In this review, we will explore the key features of the Tello Mobile SIM card, discuss who it is best suited for, and provide a final verdict based on customer feedback and usability.

Key Features

One of the standout features of the Tello Mobile SIM card is its flexibility. Users are not locked into long-term contracts, allowing them to pay between $5 and $25 per month for a fully customizable phone plan. This means you can tailor your plan to your specific needs, choosing your talk, text, and data allowance without any hidden fees or penalties for changing your plan. This level of flexibility is a significant advantage for those who may not need a large amount of data or who want to adjust their plan based on their monthly usage.

Included in the kit is a universal three-in-one SIM card that accommodates most unlocked GSM-compatible smartphones. This feature ensures that you are not limited to specific devices, allowing you to bring your own phone and activate the SIM card without hassle. Furthermore, Tello Mobile boasts nationwide 5G coverage, which means you can stay connected from coast to coast, benefiting from high-speed data and reliable service.

Another noteworthy aspect of Tello's offerings is the inclusion of international calling to over 60 countries, making it a great option for those who need to stay in touch with family or friends abroad. This feature adds significant value to the plans, especially for users who frequently need to make international calls. Additionally, the activation process is straightforward; you can activate your SIM card on the Tello website, where you can also check your phone's compatibility and coverage maps before purchasing.

Who Is It For?

The Tello Mobile SIM card is ideal for a variety of users. It caters particularly well to budget-conscious individuals who seek flexibility in their mobile plans without the burden of long-term commitments. College students, for instance, can benefit from the low-cost options, allowing them to manage their expenses effectively while still enjoying reliable service. Similarly, frequent travelers who require a temporary phone plan will find Tello's easy activation and customizable options particularly appealing.

Families can also take advantage of Tello’s plans, as they can choose different configurations for each family member according to their usage patterns. The ability to upgrade, downgrade, or cancel plans at any time without penalties makes it a practical choice for families whose needs may fluctuate throughout the year.

However, it's worth noting that while Tello Mobile offers a wide range of options, some customers have reported mixed experiences with compatibility. A handful of users found that their devices were only partially compatible with the service, which is something potential buyers should consider when purchasing. This is especially true if you own an older or less common smartphone model.

Final Verdict

In conclusion, the Tello Mobile SIM card presents an excellent choice for those looking for an affordable, flexible, and reliable prepaid phone plan. With its customizable options, no-contract structure, and nationwide coverage, it stands out as a top contender in the market. While there may be some concerns regarding device compatibility, the overall value offered by Tello Mobile makes it a compelling option for a wide range of users. Whether you are a student, a traveler, or simply someone looking to save on mobile expenses, Tello Mobile's SIM card can meet your needs effectively.

Specifications

BrandTello
Service ProviderTello
Unit Count1 Count
Number of Items1
Global Trade Identification Number00860002725819
ManufacturerTello LLC
Mfr Part NumberAUB08H5SM9M9
Best Sellers Rank#920 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories)#1 in Cell Phone SIM Cards
ASINB08H5SM9M9
Customer Reviews4.3 4.3 out of 5 stars (3,843) 4.3 out of 5 stars
Cellular TechnologyLTE
Item Dimensions L x W4.96"L x 3.74"W

What buyers say

4.2 · 5 reviews

TMO network, which isn't great in my area of rural appalachia. Cheap however. Moving from cricket as they kept jacking up rates and running out of data. Tello gives me 50GB of data a month compared to only 3gb from cricket and costs way less cricket was 35/month plus a 5 hey you didn't renew on-time fee so basically $40 a month where Tello is only $25/month after the promo ends. I DO NOT like that I don't receive texts when I come back off airplane mode or out of signal, like they aren't stored or resent, if you don't have your phone on and have a signal you aren't getting the text, even later. So, it's cheap and I have tons of data however the tmo signal sucks here and I'm always missing texts from my wife however I do have an excuse now. I guess check their service map before buying. Setup was quick and I ported my number, took maybe 15 minutes from loading the sim to having my number ported to it and making calls. If you're in a city go for it, I have no regrets even with their not great reception in my holler. Once you get to town 5g everywhere.

Dane · 2026-05-25

Tello is great. It uses t-mobile towers. Set up was very simple and easy. Plans offer great deals.

Alexander Betke · 2026-07-25

The setup was straightforward, and activating the SIM didn’t take long. It’s a good option if you want a flexible prepaid plan at a low cost. Coverage has been reliable for calls and data in my area, and the BYO phone setup makes it convenient.

B Renfro · 2026-06-14

Great Price !Great phone service!No reason to pay more when you get the same service as the expensive brans!

Bernard Domowski · 2026-07-17

All these reviews are hilarious.5-stars: like someone said, "what's up with all the 5-star reviews?" I agree.....2-star and 1-star: I these people don't know how cell phones and cell networks work.Here's my experience. I'm very pro-privacy so I know a thing or two about how the phones work, how the operating systems work, and how the networks work.I have 4 Tello cards. Long story short, I was only able to activate the first card (as a test). My intentions for this service is to have cellular backup, using cellular routers instead of cellular phones for when we have ISP outages, which we have experienced more frequently in the last couple years: slow is better than none.I had no issues with the first card. The card costed me $2 to my door, then a $10 plan for 2GB and a phone number, for testing. One of my kids is currently using it as a backup phone, so it is currently working. About the phone, it is an eBay special Motorola G7, blah blah blah, unlocked, I flashed LineageOS 21 on it. It's working fine.The next card I tried activating without a phone number, 2GB data-only. This card showed "Pending" for 24 hours, then dropped off my history. Keep in mind, there is no phone involved at this point. The third card, same issue. I even set up a new account to activate, since Amazon will only sell you one card (per purchase), so I thought maybe Tello only allows one card per household. Long story short, I was only able to activate the original card. The other cards are destined for the rubbish bin.Just some education for those who aren't aware, your old AT&T phone, for example, won't work with Tello unless you unlock it first. They are "carrier-locked", to bind you to the service until the end of your contract. Your old T-Mobile phone will probably work, since Tello works over the T-Mobile network, I've never used T-Mobile so I couldn't say 100%.As far as frequencies, I bought a Xiaomi phone about a year ago, hoping to use a really nice phone, but apparently, the frequencies they use don't match US carriers, so some phones like the Xiaomi phones, none of them will work at all, due to the radios. Yes, check to make sure your phone uses US frequencies. If your bought them in the US, they will probably work.I have a Brax Mototola G7 phone and they reset the IMEI, so as far as I know, all the carriers say the "IMEI is invalid", otherwise, your IMEI should be fine is you haven't messed with it. MOST people are not savvy enough to mess with the IMEI, so "invalid IMEI" is pretty rare.As far as customer service, the activation shows "Pending" for about 24 hours, then drops off my history. The last card I tired said "Pending", then "Refunded". You have to option to call them or email them. When I reached out to them via email, they asked to verify my identity. At face value, this seems reasonable, but having not been able to activate 3 out of 4 cards, already having my name, phone number, address from my first card, what more personal information do they want? Let alone, "they don't know me", what more information can they use to "verify me"? Personal data harvesting much? Back to the "Refunded" comment: their website says you don't get charged until you are successfully activated. The last card I tried was never activated, why would I get a refund, unless they charged me before a successful activation?In conclusion, if you are lucky enough to get one of these cards activated, it is fine as long as you're not doing anything demanding with it. I don't use SMS for privacy-reasons either, so I would only order data-only for these services. Perhaps they don't want to sell you "data-only plans". I'm off to find another service and throw all these cards away.

Todd Tran · 2024-04-24

Frequently asked questions

What types of phones are compatible with Tello SIM cards?+

Tello SIM cards are compatible with most unlocked GSM-compatible smartphones. It is recommended to check Tello's website for a compatibility list.

Can I keep my current phone number when switching to Tello?+

Yes, you can port your existing phone number to Tello during the activation process.

What happens if I exceed my data limit?+

If you exceed your data limit, Tello allows you to purchase additional data or you may be slowed down until the next billing cycle.

Is there an activation fee?+

No, Tello does not charge an activation fee for their SIM cards.

How can I cancel my Tello plan?+

You can cancel your Tello plan at any time through your account on the Tello website without any penalties.

About the reviewer

SJ

Sarah Johnson

Mobile Editor

Sarah covers smartphones and mobile tech with a focus on real-world daily use.

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