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Customer Ratings & Reviews

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Customer reviews

Rating 4.4 out of 5 stars with 661 reviews

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Rating by feature

  • Value

    Rating 4.5 out of 5 stars

  • Quality

    Rating 4.4 out of 5 stars

  • Ease of Use

    Rating 4.4 out of 5 stars

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Cons mentioned filter

89%would recommend to a friend

Customers are saying

Customers are pleased with the Smart SIM Starter Kit's affordability, ease of use, and extensive coverage. Many users have praised its compatibility with various devices, particularly iPhones. While some have experienced activation issues and signal problems, the overall sentiment is positive.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 1 Showing 1-20 of 661 reviews
  • Pros mentioned:
    Price
    Cons mentioned:
    Data

    Rated 5 out of 5 stars

    An excellent ATT MVNO! $10 for 3 months!

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I needed a cellphone service provider that used ATT's towers. H2O fit the bill. My plan is to eventually phase out this number, but until then I needed an inexpensive service option. No other ATT mvno beats H2O in price. The closest that I know of is Red Pocket ($10/mo. for unlimited minutes/text and 1GB of data). RP is also good imho, but why pay more for the same quality service if you don't need/use the extra mins/txt/data. Overall, I've found that H2O's Pay-As-You-Go service is superior compared to other ATT mvno's for my purposes. Currently they offer a plan priced at $10 for 3 months. At less than $4/mo (the cost of a vending machine snack + drink), this is totally worth it. I highly recommend H2O. After making your first payment, you can setup autopay so you don't have to worry about getting dropped if life gets busy and you forget to manually pay your bill. Also, once you setup your account online you can track your balance using their website, however every time you send a text or talk on the phone, H2O will send you a txt msg alerting you to your new balance. Very handy. Each txt or 1min of call time is $0.05. 1MB of data or MMS is $0.10.

    I would recommend this to a friend
  • Pros mentioned:
    Coverage, Ease of use
    Cons mentioned:
    Data

    Rated 4 out of 5 stars

    H20 SIM Card review

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The card was easy to install and setup. I created an account, added more money etc and was able to do and receive call. Pros (why this SIM card is worth it): H2O runs on the ATT Line which provides a good coverage. The plans are extremely cheap compared to other carriers like T-Mobile or Sprint. H2O works on ATT Locked Phones flawlessly or ATT GoPhones (And of course Unlocked Cell Phones) H2O Customer Service is amazing, I been using H2O for around 3 years and contact through Live Chat and problems are resolved in a matter of minutes, Cons: You need to personally set up an APN or install an iOS profile to get Data Working or Picture Messaging. Data Speeds aren't extremely fast and around 8 Mbps

    I would recommend this to a friend
  • Pros mentioned:
    Coverage
    Cons mentioned:
    Data

    Rated 4 out of 5 stars

    H2O Sim Card Review

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The card was easy to install and setup. I created an account, added more money etc and was able to do and receive call. Pros (why this SIM card is worth it): H2O runs on the ATT Line which provides a good coverage. The plans are extremely cheap compared to other carriers like T-Mobile or Sprint. H2O works on ATT Locked Phones flawlessly or ATT GoPhones (And of course Unlocked Cell Phones) H2O Customer Service is amazing, I been using H2O for around 3 years and contact through Live Chat and problems are resolved in a matter of minutes, Cons: You need to personally set up an APN or install an iOS profile to get Data Working or Picture Messaging. Data Speeds aren't extremely fast and around 8 Mbps

    I would recommend this to a friend
  • Pros mentioned:
    Sim card

    Rated 5 out of 5 stars

    Great sim for customer

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It is a great sim. H2O is very good phone service. It saves my money from buying calling cards. I love H2O phone service because before that I had to pay for calling card to call Bangladesh but now I only pay $27 per month and I get Unlimited Bangladesh calling. Also there is no fear of increasing monthly bill. I would suggest people who wants to call in other countries beside U.S. to check if they're eligible for unlimited calling to their countries by going to H2O Wireless website.

    I would recommend this to a friend
  • Pros mentioned:
    Coverage, Sim card

    Rated 5 out of 5 stars

    Works as expected

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    SIM card pack with the 3 sizes pretty much every phone takes. The SIMs detach from each other. The nano sized SIM sits inside the plastic for the micro sized SIM, which sits inside the plastic for the "regular" sized SIM. I would recommend keeping the outer plastic things should you change phones and need a different sized SIM. H2O service is fantastic. It uses AT&T's network which is the best of the big 4 carriers in the area that I'm in, and the areas which I most travel to. The cost is insanely excellent as well. Almost half the cost of a traditional mobile phone company. Even factoring in the up front cost of buying your own phone it's a good deal.

    I would recommend this to a friend
  • Pros mentioned:
    Price, Sim card

    Rated 5 out of 5 stars

    Good and cheap plans.

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The sim card is a great choice. It has all the options of normal, micro and nano sim. We can just recharge online and use it. Most convenient and cheapest plans. Uses ATnT network.

    I would recommend this to a friend
  • Pros mentioned:
    Coverage

    Rated 4 out of 5 stars

    Amazing but ...

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Thus us based on AT&T network and the plan I am enrolled in is $40/month ($36 if you sign up for auto charge). The plan offers 8G 4G LTE, unlimited talk and text in US and $20 international credit. The coverage is very good, I tried thw Intenet on my way from Albany, NY to Middletown, NY with no cuts. The reasons for my 4 stars: 1. H2O CEO, you need to take care of your customer services. They are good (not all of them) but the time I have got answered when called to switch from Simple Mobile was 14 minutes! Get more employees please. 2. If you are switching to H2O, they require your zip code, and here is the thing here, you must give them your zip code where you lived when you purchased your old SIM. It won't work even if you changed your address in your old SIM account. H2O doesn't say this on their website. It took me 4 days to complete the switch while it should've taken from 2 ti 24 hours. 3. The $40 plan is a promotional lasts till 6/30/2017, customer services said it may/may not go back to it's previous offer (3G 4G LTE speed internet, the rest are the same) after that, really!!! Overall I am satisfied but will be more happy if it stays 8G.

    I would recommend this to a friend
  • Pros mentioned:
    Price

    Rated 3 out of 5 stars

    Good phone plans with international calling

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have had an H2O SIM card in an older cell phone before and it was disappointing, because there were a lot of disconnects and very bad reception. I have used that first SIM card for only 1 month. I wanted to give H2O another chance with a new phone, and I bought a new SIM card, because I like the phone plan with the unlimited international calls to 10 numbers/month to certain countries. The setup was not problem free in either case and I had to call H2O customer service for help. I believe it is an out of country customer service. I think they are trying to be good, but they are not good yet. I was on hold for a very long time when I called them. At the first time, non of my phones wanted to work with the SIM card and they had to send me files for resetting and activation, and the whole process lasted a very long time. At this second time, after activating the service through their website, there was no data and internet service. They walked me through the complete setting for H2O cellular internet service. I have been using this 2. H2O SIM card for over a week now. It works a lot better than the first one worked in the older phone. I called US and international numbers with no problem. I used text messaging and the internet. If you can get over the possible issues with setup and customer service, the package itself is pretty good for the price. I do not regret giving H2O a second chance. I bought only the SIM card from Best Buy, then I paid for the service on the H2O website during activation. Choosing autopay gives you discount and there is also a promotion for extra data for 3 months.

    I would recommend this to a friend
  • Pros mentioned:
    Price

    Rated 5 out of 5 stars

    vvvv

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    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I needed a cellphone service provider that used ATT's towers. H2O fit the bill. My plan is to eventually phase out this number, but until then I needed an inexpensive service option. No other ATT mvno beats H2O in price. The closest that I know of is Red Pocket ($10/mo. for unlimited minutes/text and 1GB of data). RP is also good imho, but why pay more for the same quality service if you don't need/use the extra mins/txt/data. Overall, I've found that H2O's Pay-As-You-Go service is superior compared to other ATT mvno's for my purposes. Currently they offer a plan priced at $10 for 3 months. At less than $4/mo (the cost of a vending machine snack + drink), this is totally worth it. I highly recommend H2O. After making your first payment, you can setup autopay so you don't have to worry about getting dropped if life gets busy and you forget to manually pay your bill. Also, once you setup your account online you can track your balance using their website, however every time you send a text or talk on the phone, H2O will send you a txt msg alerting you to your new balance. Very handy. Each txt or 1min of call time is $0.05. 1MB of data or MMS is $0.10.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Price
    Cons mentioned:
    Data

    Rated 5 out of 5 stars

    Can't use on specials, have to pay full price.

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good value for the money and easy to get started. Can't use on specials or discounts. Data doesn't work on all phones.

    I would recommend this to a friend
  • Pros mentioned:
    Sim card

    Rated 5 out of 5 stars

    H2O SIM and service review

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    l'm not sure what exactly this is supposed to be reviewing, but here goes. The SIM card worked as expected; it fit my iPhone and I was able to activate service. Porting in my number took less than an hour despite a small (self-imposed) problem. I accidentally provided the wrong account PIN for my old carrier. That can't be corrected online, so I had to call customer service. The rep was polite and quickly fixed the problem. H2O's service has been fine. My previous carrier was also AT&T-based and I've not noticed any difference in the service I've gotten so far. The biggest difference has been in the cost vs the previous carrier. I'm paying less than half what I was paying and the experience has stayed the same. Overall, I'd recommend H2O if you use wifi the majority of the time but still need to stay on the AT&T network for data and phone calls.

    I would recommend this to a friend
  • Pros mentioned:
    Coverage, Ease of use, Price

    Rated 5 out of 5 stars

    Nice service

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    They use at&t antennas so the service is really great. Very easy to set up and manage. Very fit for the budget

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Price

    Rated 5 out of 5 stars

    Nice Pre-paid Service

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent. H2O is great service and reasonable price. Easy Set-up and instructions

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Easy and user friendly

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    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent network and user friendly and definitely recommend for someone looking for prepaid network

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Works fine

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    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    SIM card in excellent condition would purchase from Best Buy again

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Price

    Rated 5 out of 5 stars

    easy to use

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    easy to use no problem activating it. rate is very fair

    I would recommend this to a friend
  • Pros mentioned:
    Price

    Rated 4 out of 5 stars

    Chepeast and reliable prepaid pay to go service

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    his is the cheapest service with longest expiration you can get for your money. At&t cost $10/ month, T-mobile cost $3/ month with only 30 days of expiration. There is no other service that offers 90 day period but H20. $10 gives you 30 minutes of service with text I dunno what's the amount of allowable text messages you will get check their website. It comes to about $2.50 per month. Best if all and to put a cherry on top, the sim card is only a penny. I never knew a penny can worth something. Tmobile prepaid sim is $10 and so is At&t's. By the way, H2O coverage is through At&t towers-go figure!

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Good SIM kit for h2O

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    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to use SIM Starter kit for h2O. Easy to set up. Good customer service if you have problems. Everything you need to set up service on your smart phone. If you want h2O service this is a must.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Sim card

    Rated 5 out of 5 stars

    Great price and easy activation

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Its a triple cut sim card easy to pop out and insert in the phone and activation is pretty easy online through H2O website. But getting at such cheaper price is a great option.

    I would recommend this to a friend
  • Pros mentioned:
    Price

    Rated 5 out of 5 stars

    H20 wireless

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Running on the ATT network, H20 is a great value. I try to keep at least 1 sim on hand for foreign visitors and use the $10 for three months plan so they have at least an emergency phone available.

    I would recommend this to a friend