The truth about 5G home
Internet and why Optimum wins

5G Home Internet may sound good at first, until you realize you don’t know what speed you’re getting. That’s because 5G Internet runs on shared cell phone towers and slows during peak hours. They call it “fast internet,”
we call it “not good enough.”

Terms Terms

Based on analysis by Ookla® of Speedtest Intelligence® data for fixed median download speeds, consistency score, game score, and multi-server latency, identified geographies, Q3-Q4 2025. Ookla trademarks used under license and reprinted with permission.

Pricing, offers, and terms subject to change and discontinuance w/o notice. All trademarks and service marks are the property of their respective owner. © 2026 CSC Holdings, LLC.

Ookla speed graph: steady blue Optimum Fiber line above a dipping magenta 5G line, 'Flaky 5G Home Internet' stamp

Compare for yourself.
Optimum wins every time.

A side-by-side look at how Fiber Internet stacks up against 5G Home Internet – on the things that actually effect your connection

FeaturesOptimum LogoFios Logo
Fiber line straight to your home
Consistent Speeds 24/7/365
99.9% reliable, fewer dropouts
Low latency - less lag & buffering
Fast, steady uploads
Know the speed you're getting
5-year price lock

 

Terms Terms

Fastest, most consistent, and most reliable Internet speeds based on analysis by Ookla® of Speedtest Intelligence® data, median download and fixed Consistency Score for NY & NJ Q3-Q4 2025. Ookla trademarks used under license and reprinted with permission.

99.9% reliability claim excludes outages caused by external events and scheduled maintenance.

Pricing, offers, and terms subject to change and discontinuance w/o notice. All trademarks and service marks are the property of their respective owner. © 2026 CSC Holdings, LLC.

See how Optimum stacks up against competitors

Two friends wearing virtual reality headsets play an immersive VR game together while holding controllers and smiling indoors using Optimum Fiber

Save over $1,100/yr. vs AT&T[tooltip:Terms|Savings based on first year comparison of Optimum 300 Mbps Internet, 1 line of Unltd Mobile & Ent TV plan with AT&T Internet Air, 1 line AT&T Unlimited Starter plan & DirecTV “Entertainment” Streaming Package. Autopay/Paperless discounts applied.]

Woman wearing headphones smiles while watching content on a tablet at home, enjoying online entertainment or streaming media with Optimum Fiber
Woman wearing headphones smiles while watching content on a tablet at home, enjoying online entertainment or streaming media with Optimum Fiber

Save over $750/yr. vs Verizon[tooltip:Terms|Savings based on first year comparison of Optimum 300 Mbps Internet,1 line of Unltd Mobile & Ent TV plan with Verizon 5G Home Internet, 1 line of 5G Unlimited Welcome Plan & YouTube TV. Autopay/Paperless discounts applied.]

Find the right Fiber plan, with prices guaranteed for 5 years on ALL plans

Power streaming, gaming, video calls at the same time with ultra-fast Fiber Internet.

5-year price lock on all plans
No data caps
Equal upload and download speeds
Free professional installation
Network Reliability
60 day money-back guarantee

Watch more, talk more, & save more $1,000/yr.

Save up to $30/mo. when you add TV + Mobile to your Internet plan

Consistent speeds

Get the speeds you're paying for, when you need them.

Low Latency

Smooth performance for calls, gaming, and everything in between.

No dropped
or laggy calls

Stay connected without the interruptions.

Multi-device reliability

Everyone online, all at once — no problem.

 

More Speed. More savings. No surprises.

The best deal on Internet anywhere –and it keeps more money in
your pocket vs. 5G Home Internet, month after month.

Untitled Document

 Optimum LogoFios LogoAnnual savings
Internet [tooltip:Terms|Savings based on first year comparison of Optimum 300 Mbps Internet and T-Mobile 5G Home Internet. Autopay/Paperless discounts applied.]

$30/mo

$49.99/mo

$240/yr

Internet + Unlimited Mobile [tooltip:Terms|Savings based on first year comparison of Optimum 300 Mbps Internet and one line Unlimited Mobile and T-Mobile 5G Home Internet and one line Unlimited Essentials Saver. Autopay/Paperless discounts applied.]

$55/mo

$65/mo

$120/yr

Internet + TV [tooltip:Terms|Savings based on first year comparison of Optimum 300 Mbps Internet and Entertainment TV with T-Mobile 5G Home Internet and YouTube TV. Autopay/Paperless discounts applied.]

$50/mo

$119.99/mo

$875/yr

Internet + Unlimited Mobile +
TV
[tooltip:Terms|Savings based on first year comparison of Optimum 300 Mbps Internet, one line Unlimited Mobile and Entertainment TV and T-Mobile 5G Home Internet, one line Unlimited Essentials Saver and YouTube TV. Autopay/Paperless discounts applied.]

$75/mo

$134.99/mo

$750/yr

 

Free service installation, your way

Choose a guided DIY via self-install or schedule an appointment with a professional to take care of it for you.

Smiling Optimum technician in a white hard hat and uniform standing beside a service van outdoors
Smiling Optimum technician in a white hard hat and uniform standing beside a service van outdoors

Free expert installation ($100 value)

Let us take care of it for you.

 

  • Ensure your Internet is installed correctly by a pro
  • Choose an appointment time that works for you
  • Complete testing & activation before the technician leaves
Woman in a cream sweater on a sofa placing a white Optimum gateway router on a wood table
Woman in a cream sweater on a sofa placing a white Optimum gateway router on a wood table

Fast and free self-setup

Set your service up at your convenience.

 

  • Get your equipment as soon as next day, or pick your preferred delivery date
  • Set yourself up in 20 minutes or less
  • Enjoy dedicated tech support 24/7 if you need it

Explore the advantages of
Fiber Internet

Blonde woman in a plaid shirt with a yellow blanket relaxing in an armchair, looking at a tablet Blonde woman in a plaid shirt with a yellow blanket relaxing in an armchair, looking at a tablet

Optimum vs. Verizon: Compare Internet Speed, Pricing and Coverage

Read Time: 7 min.  •  Internet  •  Jun 05, 2025

Woman in a rust knit sweater smiling at a tablet with warm string lights glowing behind her Woman in a rust knit sweater smiling at a tablet with warm string lights glowing behind her

Optimum Internet or 5G Home Internet: Which to Choose?

Read Time: 8 min.  •  Internet  •  Dec 11, 2025

Frequently asked questions

The main difference lies in the connection method:

  • Optimum Internet typically uses a wired connection (either traditional cable or, increasingly, fiber-optic lines) run directly to your home. 
  • 5G Home Internet uses Fixed Wireless Access (FWA), receiving an internet signal wirelessly from a nearby cellular tower, similar to a mobile phone signal, through a gateway device in your home.
FeatureOptimum (Cable/Fiber)5G Home Internet (Fixed Wireless)
Connection TypeWired (coaxial cable or fiber optic)Wireless (cellular towers)
ReliabilityGenerally more reliable and less affected by congestion or weather, especially fiber.Can be less reliable and prone to speed dips due to network congestion, distance from the tower, and physical obstructions.
SpeedOptimum offers much faster speeds (especially with fiber, up to 8 Gig) and more consistent performance.Speeds are generally slower than fiber and can fluctuate based on tower traffic and signal strength.
Latency (Lag)Generally lower latency, which is better for gaming and video conferencing.Generally higher latency and more susceptible to lag.

 

5G home internet often slows down at night because it uses the same cellular network as mobile phones, making it susceptible to network congestion during peak hours (typically 7 PM to 11 PM). When many people in your area are streaming, gaming, or downloading simultaneously after work and school, the shared bandwidth on the cell tower gets overloaded, leading to reduced speeds for everyone.

Optimum Internet plans generally advertise unlimited data and do not have hard data caps that would result in overage fees.5 However, they, like other providers, may have an "excessive use" policy. For most users, this means you can stream, game, and download extensively without worrying about data limits or speed throttling based on typical usage.

It depends heavily on your specific needs and location.

  • Good for basic WFH: It can be sufficient for basic tasks like email, web browsing, and occasional video calls, especially for one or two users with moderate speed requirements.

  • Less reliable for demanding tasks: It may be less reliable for tasks that require low latency (like competitive online gaming) or consistent speeds (like large file transfers or high-quality video conferencing, especially with multiple simultaneous users) due to potential congestion and signal fluctuation.

  • Wired is generally better: For the most stable and consistent experience crucial for professional remote work, a wired connection like Optimum's cable or fiber internet is typically the more dependable choice.

Yes, you most likely can, but availability can vary.

  • Optimum provides service to many multi-unit dwellings.

  • The actual availability in your specific building depends on whether the necessary Optimum infrastructure (cable or fiber lines) has been run to and through the building.

  • Some apartment buildings may have existing bulk-billing agreements with a specific provider, but you can usually choose your own if a different provider (like Optimum) has service available at your address.

This is a comparison of a dedicated wired connection versus a shared wireless one:

  • Fiber Internet uses light signals sent through glass strands (fiber-optic cables) run directly to your home, offering the fastest available speeds (often symmetrical: same upload and download speeds), lowest latency, and highest reliability.

  • 5G Home Internet is a wireless service delivered via radio waves from a cellular tower. Speeds are generally slower, can vary based on factors like distance/obstructions, and upload speeds are typically much slower than download speeds.

Optimum offers a wider range of speeds, particularly with its fiber service, which can reach up to 8,000 Mbps (8 Gig). T-Mobile Home Internet (a type of 5G home internet) typically offers speeds in a range (e.g., 40 Mbps to 300 Mbps or more, depending on location and network) but its maximum speeds are generally lower and less consistent than Optimum's high-tier cable and fiber plans.

  • Optimum: Capable of much faster, multi-gig speeds, especially with fiber, offering greater speed consistency.

  • T-Mobile Home Internet (5G): Offers a decent speed for the price, but speeds fluctuate more and generally top out at a lower maximum compared to Optimum Fiber.

Yes, weather can affect 5G home internet performance.

5G uses radio waves, which can be weakened or disrupted by environmental factors. Heavy rain, dense snow, or even thick fog can interfere with the signal traveling between the cell tower and your home, potentially causing reduced speeds or intermittent service drops. Wired connections like fiber are much more resilient to these types of weather-related interferences.