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Cox Communications vs. Optimum vs. T-Mobile Internet plan comparison


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Researched by
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Reviewed by
Bri FieldAssigning Editor
Updated 6/26/24

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Cox
Staff rating
3.6
Customer rating
4.1
(122)

  • Plans starting at $20.00
  • Download speeds up to 2 Gbps
Optimum brand
Staff rating
4.1
Customer rating
3.8
(70)

  • Plans starting at $15.00
  • Download speeds up to 940 Mbps
T-Mobile brand
Staff rating
3.7
Customer rating
4.2
(110)

  • Plans starting at $50.00
  • Download speeds up to 182 Mbps
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Cox
Staff rating
3.6

Low starting prices and reliable internet speeds

Cox provides a great customer experience and reliable speeds, but you’ll spend more for higher-speed plans, extra data, and add-ons.

What we like

  • Plan variety and options
  • Great customer experience
  • Generous, unthrottled data cap
What we dislike

  • Expensive plans
  • Steep data overages
  • So-so availability
Savings tip: Cox often has sign-up promotions for first-time customers. Call to ask a rep about current deals and discounts.
Check deals
Optimum brand
Staff rating
4.1

Fast speeds and reasonable pricing

If you can get fiber internet from Optimum , you'll get great all-around service with fast speeds and reasonable pricing. If you can get only cable internet, you'll get slower max speeds and may see different pricing. Both options are decent, but watch out for third-year price hikes and potential customer service hassles.

What we like

  • Affordable prices
  • No data caps or contracts
  • Both cable and fiber offerings
What we dislike

  • Very limited availability
  • Average customer service
  • No true budget plan
Savings tip: Optimum often has sign-up promotions for first-time customers. Call to ask a rep about current deals and discounts.
Check deals
T-Mobile brand
Staff rating
3.7

Inexpensive high-speed internet with no contracts

T-Mobile provides an inexpensive 5G internet plan with no contract and decent speed, but not a lot of choices or professional installation.

What we like

  • One low price
  • No commitment
  • Relatively fast
What we dislike

  • Not widely available
  • No professional installation available
  • Inconsistent speeds
Savings tip: T-Mobile often has sign-up promotions for first-time customers. Call to ask a rep about current deals and discounts.
Check deals
Cox
Value
3.0
Good budget plans, but you’ll pay high prices for top speeds

Cox plans range from around $0.60/Mbps for low-speed plans to around $0.10/Mbps for the fastest plan, which is more expensive than other cable internet providers. The good news? Cox has more lower-speed plan options, so if your internet budget tops out at $50 a month, Cox might be your new best friend. At speeds of 200 Mbps and above, however, Cox loses the price war.

What you get for the money is pretty good. All plans have a 1.25 TB data cap (unless you pay an extra $50 per month for unlimited), but that’s more than most people need. And unlike providers where unlimited comes standard, Cox won’t throttle your speed if you get a little data-hungry. Just beware of overage charges (which can really add up) if you go over the limit.

Pricing details vary by location. Visit
Cox's website
or call 1-844-448-0617 to speak with a rep.
See pricing
Optimum brand
Value
4.0
A lot of internet for a little money

Optimum offers a lot for the money. Both fiber and cable internet plans start at 300–500 Mbps, with a very competitive price that beats the entry-level plan for competitor Spectrum and is way less than national benchmarks (1). That's plenty fast for most online gaming and work from home needs, but you can pay for even higher speeds if you have a big household.

Compared to the competition, the two lower-tier plans almost always offer more speed for the money. And while you can technically find cheaper gig plans, Optimum still tends to be the most affordable in its markets.

If you qualify only for cable internet with Optimum, your speeds will be slower but you'll pay about the same every month. Prices are higher than other cable internet providers at these speeds, but you may not have a choice. Most areas that don't have fiber internet won't have multiple cable internet options.

We love the low starting prices, 2-year price lock, and 60-day money back guarantee, but you can expect prices to jump $35–$85 in your third year of service.

Pricing details vary by location. Visit
Optimum's website
or call 1-844-719-8066 to speak with a rep.
See pricing
T-Mobile brand
Value
4.0
One plan, one very low price

T-Mobile 5G Home Internet comes in one download speed (182 Mbps), which is fast enough for a lot of people but slower than most cable plans (up to 1 Gbps) and fiber plans (up to 5 Gbps). The good news? T-Mobile’s plan includes unlimited data, but there may be slowdowns when the network is congested. It’ll cost you $50, which is $0.50 per Mbps, and about right for 5G plans. However, overall, 5G internet is super cheap compared to other kinds of broadband internet. The Federal Communications Commission (FCC) benchmarks similar broadband plans at $105.67/month, (1) which comes out to more than a dollar per Mbps!

Even better, if you’re already a T-Mobile customer with a qualifying Magenta plan, your rate is $25/month. If max download speeds of 100 Mbps works for you, T-Mobile 5G Home Internet is a pretty sweet deal, especially if you’re already a customer. But if you’re looking for more plan options, you won’t find them here.

Pricing details vary by location. Visit
T-Mobile's website
or call 1-833-922-2124 to speak with a rep.
See pricing
Cox
Performance
4.5
Speeds are very reliable, but expect minor slowdowns at peak times

Generally, Cox delivers the speeds it says it does, sometimes even a bit higher—though the speed you experience also depends on lots of factors, such as the equipment you’re using and your distance from the router.

Cox specializes in cable internet, which is faster than DSL and satellite, but slower and less reliable than fiber. It’s also typically cheaper and more reliable than wireless internet. The US Federal Communication Commission, in fact, says actual speeds from Cox are faster than advertised and nearly identical to competitor Optimum. Those speeds are stable, too. The report found slowdowns less than 5% of the time. (1) However, cable internet is known to be slower during peak usage times because you and your neighbors are all using the same street lines.

Available speeds vary by location. Call 1-844-448-0617 to speak with a Cox rep or
go to its website.
Optimum brand
Performance
5.0
Optimum internet is both fast and reliable—what’s not to love?

Optimum performance is solid. With speeds up to 2 Gbps (12000 Mbps) in some states, there’s enough bandwidth available for even the heaviest of streaming households. Even the lowest-tier plans offer plenty of speed for most use cases. The cable service is generally very reliable, as well, and usually even faster than advertised, with better latency than any cable competitor. (2)

Additionally, Optimum offers fiber internet service in some of its coverage areas, which offers extra reliability and symmetrical speeds. That’s an excellent feature for content creators and anyone who shares a lot of large media files. Recently, it started offering home internet plans up to 5 Gbps, a speed that’s nearly impossible to beat.

Available speeds vary by location. Call 1-844-719-8066 to speak with a Optimum rep or
go to its website.
T-Mobile brand
Performance
3.0
Faster than advertised, but awkwardly unpredictable

As with any fixed wireless internet provider, speeds fluctuate widely and can be affected by weather, terrain, peak hours, and more. That means you’ll rarely get a steady 100 Mbps. T-Mobile says you’ll likely see anywhere from 33 to 182 Mbps for download and 8 to 25 Mbps for upload. (2) But we think T-Mobile should toot its horn a little louder. Independent research shows speeds average out to around 119 Mbps for download and 16 Mbps for upload—both of which leave other wireless ISPs in the dust. (3)

Generally, 5G internet isn’t as fast as cable internet (up to 1,000 Mbps, or 1 Gbps) or fiber (up to 5 Gbps). But for most people, it’ll feel pretty zippy. Unfortunately, if you’re using your connection for gaming, the inconsistency could cause unpredictable, frustrating lags.

Available speeds vary by location. Call 1-833-922-2124 to speak with a T-Mobile rep or
go to its website.
Cox
Equipment and installation
3.5
Rent a Gateway or bring your own networking equipment

Cox’s Panoramic Wi-Fi Gateway ($13/month to rent) is a modem and router in one, and you can purchase (but not rent) additional Wi-Fi pods ($129.99 each) that plug into a regular power outlet to reduce dead spots in your home. Because these pods can be used only with Cox, they're only an ideal solution if you plan to be with Cox for several years. The good news is Cox is also compatible with tons of other modems and routers, so you could save a few bucks while using your own gear.

With Cox, a self-installation kit is free. But if getting set up on your own makes you sweat, a Cox professional can install it for $100... but that installation cost goes up if your home isn’t already wired up and ready to go. They’ll ensure cabling makes it from the street into your home, but you might need to hire a contractor or handyman to run wires to a specific room.

Equipment and installation options can vary widely depending on
Cox plans
available in your area.
View plans
Optimum brand
Equipment and installation
4.5
Free pro and self-installs, or you can pay for extra device setup

Optimum offers a fairly standard wireless gateway with both its fiber and cable plans. The combined modem and router are usually free, but may cost you $10 per month on top of your bill in some areas. You can also add Wi-Fi extenders for $3 each per month, which is handy for larger homes and offices (and not a bad price, either).

If you want to use your own equipment instead of Optimum's free gear, you may run into difficulties. Optimum doesn't list compatible equipment and requires at least some third-party modems to be purchased from its stores.

With Optimum installation, you can do it yourself or have a pro help, and either way is free. If you order online, you can opt for a free standard professional installation or pay $59 for a premium installation, where the tech will configure Wi-Fi on up to six devices for you. While other providers may offer to set up your main device during installation, we haven’t seen such an extensive guarantee elsewhere. This could be a selling point for less tech-savvy customers.

Equipment and installation options can vary widely depending on
Optimum plans
available in your area.
View plans
T-Mobile brand
Equipment and installation
4.0
You’ll need an app for that

T-Mobile uses a 5G gateway (included at no additional cost) to turn cell signal into Wi-Fi for your home. It’s strong enough to send signal about 30 feet away, depending on how many walls are in the way. It’s compatible with most mesh network extenders. Plus, you can create up to four separate networks, so you can create one for Airbnb guests or your least favorite roommate.

According to T-Mobile, installation should take around 15 minutes—if you have an Android or iOS phone and can download the T-Mobile internet app. If that doesn’t work out, you can call T-Mobile customer service and someone will help you get set up. If you don’t get cell signal or a landline at home, though, you’re going to have a rough day.

Equipment and installation options can vary widely depending on
T-Mobile plans
available in your area.
View plans
Cox
Customer experience
3.5
Decent customer service, and you can pay for extra tech help

Reviews for internet service providers are notoriously low in general, but Cox does pretty well according to our real customer reviews. The American Customer Satisfaction Index (ASCI) ranks Cox ninth in customer satisfaction among internet service providers—the same as Frontier. (2) That's lower than average, but not by much.

We think Cox’s 30-day, no hassle money-back guarantee is solid. And in our own experience with Cox, we've had solid customer service interactions. If you opt for self-installation, you can still get plenty of help online or by phone if needed. But if you use your own gear or technology isn’t your thing, $10/month will get you extra help, day or night, for things like malware removal, software installation and reconfiguration, and general troubleshooting.

Visit Cox's website
or call 1-844-448-0617 for more information on contracts and money-back guarantees.
Go to provider
Optimum brand
Customer experience
3.0
Great internet brought down by customer service complaints

Optimum provides a good customer experience overall. Both types—cable and fiber—are fast and stable, and we haven’t seen any major complaints about reliability. We think the day-to-day experience with Optimum is fine.

However, the company’s customer service is less than stellar, with one of the lowest ratings of all providers, according to the American Customer Satisfaction Index (ACSI) (3). Most of the complaints we’ve seen involve a poor experience dealing with customer service reps. Optimum does offer solid online support options, so you may be able to get around these issues. And, of course, not everyone has a poor experience.

Visit Optimum's website
or call 1-844-719-8066 for more information on contracts and money-back guarantees.
Go to provider
T-Mobile brand
Customer experience
4.0
Award-winning customer service, but a lackluster guarantee

T-Mobile is fairly new to providing home internet, but it has a solid track record of providing great service to its mobile customers. Both contract and non-contract customers see the best service in the industry, according to J.D. Power. (4)

We don’t like T-Mobile’s short 15-day money-back guarantee, which doesn’t give you much time for a test drive. (We much prefer Starry’s 30-day guarantee.) Even worse, your countdown starts when T-Mobile ships your 5G Gateway, not when it arrives. If there are any shipping delays or it takes you a day or two to get set up, you’ll run out of testing time fast.

Visit T-Mobile's website
or call 1-833-922-2124 for more information on contracts and money-back guarantees.
Go to provider
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Cox Communications
4.1
(122)
5 Star
43%
4 Star
33%
3 Star
21%
2 Star
2%
1 Star
1%
M
Michaelfrom Las Vegas, NV
Cox Communications Customer for 8+ years
Reviewed on: 6-17-2022
been with cox for quire a few years. service is ok
C
Cindyfrom Virginia Beach, VA
Cox Communications Customer for 8+ years
Reviewed on: 6-17-2022
My review for Cox is a pleasant experience overall. Sometimes the reliability and speed is not consistent. This makes me long for a more reliable service.
T
Tiffaniefrom Las Vegas, NV
Cox Communications Customer for 1+ years
Reviewed on: 6-17-2022
the value of cox i would say is just decent. they do not go above and beyond like they use to but its okay. the speed is hit or miss. and honestly its not very reliable as we always are having connectivity isuues. its crap to keep it sweet
M
Matthewfrom Alexandria, VA
Cox Communications Customer for 1+ years
Reviewed on: 6-17-2022
Cox has been very reliable over the past 18 months. The technician who came to my house was friendly and good at his job. I would love if their prices were a little lower, especially for cable.
Optimum
3.8
(70)
5 Star
26%
4 Star
46%
3 Star
16%
2 Star
8%
1 Star
4%
D
Debbiefrom Cullowhee, NC
Optimum Customer for 1+ years
Reviewed on: 6-17-2022
Reliable with few issues. Just wish the cost wasn’t so much.
B
Bobbifrom Bridgeport, CT
Optimum Customer for 8+ years
Reviewed on: 6-17-2022
I am very satisfy with my service .I been a customer for years.They are a good value and very reliable.
L
Lyndafrom Sod, WV
Optimum Customer for 1+ years
Reviewed on: 6-17-2022
Optimum currently provides a fast and mostly reliable internet connection. However, the price is not a value at all.
J
Janetfrom Bronx, NY
Optimum Customer for 8+ years
Reviewed on: 6-17-2022
very good service. always available in my area. a sure deal
T-Mobile
4.2
(110)
5 Star
43%
4 Star
41%
3 Star
14%
2 Star
1%
1 Star
1%
J
Jordanfrom Atlanta, GA
T-Mobile Customer for 1+ years
Reviewed on: 6-17-2022
For the price I’m paying, I would say my internet is fairly good and is fast and reliant.
C
Ceciliafrom Hoboken, NJ
T-Mobile Customer for Less than a year
Reviewed on: 6-17-2022
Have been with tmobile 20+ years with cell service
T
Theresafrom Austin, TX
T-Mobile Customer for Less than a year
Reviewed on: 6-17-2022
Was previously with Sprint. Not too familiar with T mobile
J
Joefrom Hewitt, NJ
T-Mobile Customer for Less than a year
Reviewed on: 6-17-2022
it is a seamless experience
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Endnotes and sources
  1. "Measuring Fixed Broadband - Tenth Report," FCC. Accessed 5 August 2022.
  2. Internet Service Providers,” ASCI. Accessed 7 December 2022.
Endnotes and sources
1. “2022 Urban Rate Survey – Fixed Broadband Service,” FCC. Accessed 20 October 2022.2. "Measuring Broadband America," FCC. Retreieved Dec. 10, 2022.3. “Internet Service Providers,” American Customer Satisfaction Index. Accessed 15 June 2022.
Endnotes and sources
1. “2022 Urban Rate Survey – Fixed Broadband Service,” FCC. Accessed 12 December 2022.2. “Policies, Open Internet,” T-Mobile. Accessed 12 December 2022.3. “USA 5G Experience Report October 2021,” Opensignal. Accessed 12 December 2022.4. "Wireless Customer Care Satisfaction Declines as Staff Turnover Rises, J.D. Power Finds,” J.D. Power. Accessed 12 December 2022.