Optimum vs. Xfinity Internet Providers Compared

Optimum features good speeds but poor customer satisfaction scores

Optimum is a major national cable internet provider. Most of Optimum’s 4.3 million subscribers receive cable internet service. But the ISP is also adding some all-fiber connections in select markets. Optimum is the internet brand name of Altice USA, which rolled the company formerly called Suddenlink into the Optimum brand in 2022 [1]. Altice/Optimum is the 6th-largest ISP in the nation [2]. Optimum seems to check off all the right boxes for many of its offerings. You will have no data caps and no required contracts with Optimum internet plans. You will also get free equipment rental included with your monthly plan price. And Optimum’s prices are good (at least while the promotions last). So why are Optimum’s national customer satisfaction scores so low? We’ll check into that as we give you an overview of what to expect from an Optimum internet connection.

Good initial prices followed by price hikes

Cable internet is the chief type of connection that Optimum provides its customers. Because of improvements to cable internet technology, you can get gigabit download speeds from many cable internet companies like Optimum. You just won’t get the same upload speeds from cable as you will from an all-fiber connection [3]. Whether you get the usual cable service or all-fiber, you will get good prices from Optimum, and those prices will be locked for 2 years. Here’s an example. You’ll pay $40/month for Optimum’s first tier plan, which is up to 300. That is a good price for these speeds. The catch is that after those two years, standard prices will take effect, which will spike your bill higher. That may be why Optimum is seeing year-over-year declines in its cable customers [4]. The price hikes may be pushing people to other options at the end of their two-year promotion.

Xfinity stands above the pack for its low initial pricing, but pay attention to the later price hikes and fees

Xfinity is the largest internet service provider in the United States, with 32 million broadband subscribers [1]. Xfinity is a subsidiary of cable giant Comcast. Company size and strength gives Xfinity the ability to offer very low promotional prices to consumers for a year or even two years. Xfinity’s promotional plans begin around $40/month. Here's the kicker: after a year or two, your promotional rate will end. At that point, your rate can go up by anywhere from $25 to $50 per month. And Xfinity pricing varies all over the country and is pretty complex in how it changes from plan to plan. By our evaluation standards, this lack of simplicity in pricing hurts Xfinity’s rating despite its great initial promotional rates. In addition, Xfinity’s lower-tier plans have data caps that apply under certain conditions. The data cap is 1.2 TB (terabytes) per month, which is enough to cover many households’ monthly usage without any trouble. However, the Benton Institute for Broadband and Society analyzed data from OpenVault to show that 14.6% of homes used more than 1 terabyte per month, and 2.4% used over 2 terabytes per month [2]. This data suggests that 1 in every 7 homes would run a risk of exceeding the Xfinity data cap. Comcast/Xfinity claims that it does not throttle internet and slow it down, however, Xfinity will charge you overage fees if you exceed your data cap [3]. Those fees can go up to a maximum of $100/month [4]. Odds are that you won’t exceed your data cap. But if you have lots of real-time gaming or heavy streaming in your household, the extra cost for data overage could really add up. With Xfinity's top tier plans, though, you will get unlimited data.

Cable and fiber both provide fast download speeds, but cable's upload speeds are slower

With hybrid fiber-coaxial (HFC) technology, Optimum gives its cable customers gigabit download speeds but much slower upload speeds. That’s typical for cable internet service. Optimum is comparable to other major cable internet providers such as Spectrum and Xfinity, offering upload speeds at a maximum of around 35-50 Mbps. Optimum differs from the cable internet competition because it is also launching into the all-fiber internet market. Optimum’s current fiber internet customer base is small but has doubled in the last couple of years from around 100,000 to over 200,000 subscribers [4]. By 2025, Optimum plans to create over 6.5 million fiber passings [5]. Fiber internet’s most striking advantage over cable internet is that fiber offers symmetrical upload and download speeds. This is a game-changer for online gaming, videoconferencing, and large homes with multiple devices. When Altice merged Suddenlink under the Optimum brand, the company had two distinct “footprints” left from where the old Optimum and Suddenlink coverage had existed. Suddenlink’s coverage area had been primarily in the South and West. Optimum was strong in the Northeast, and particularly in the tri-state area of New York, New Jersey, and Connecticut. Now, the fiber buildout is fastest in that tristate area [1]. Your chances of getting fiber internet from Optimum in the next year or two will be better if you live in the tri-state area.

Xfinity’s hybrid fiber/coaxial cable supplies gigabit download speeds but slower upload speeds

Though Xfinity has advanced cable technology and good speeds, their network seems to be more prone to outages than users would like [5]. That’s the major reason Xfinity gets a lower rating for performance, in addition to the intrinsic differences between cable speed and all-fiber speed. Xfinity uses technology that is mostly fiber but uses coaxial cable for a short stretch of your internet connection. This type of connection is known as hybrid fiber/coaxial cable, or HFC. An HFC internet connection is better than older cable technologies because it can supply download speeds up to gigabit speeds. HFC will give you faster, more reliable internet service than DSL, satellite internet, or fixed wireless internet. And for streaming in HD, this hybrid fiber- cable internet will certainly be able to support multiple devices. The major difference between HFC and an all-fiber internet connection is upload speeds. Your upload speed will be no faster than 35-50 Mbps. An-all fiber connection, by contrast, will give you the same upload speed as your download speed. Your upload speed will affect activities such as gaming, videoconferencing and large file uploads. The good news is that if you have an upload speed of 35 Mbps, you’re still going to be able to upload pretty quickly. For most average households, 35 Mbps is enough. But if you have four or more people in your household streaming HD, playing games, working from home, and videoconferencing simultaneously, you’re going to want all-fiber internet, or what is often called “fiber to the home” (FTTH). Xfinity does have one all-fiber connectivity option that is full FTTH. If your household’s location is eligible, Xfinity will install an FTTH connection for their Gigabit Pro plan. Gigabit Pro is up there with the fastest fiber plans on the market.

No equipment rental fees, free installation with Optimum plans

Optimum will provide your modem/router as part of your monthly plan fee, with no extra rental charge. If you have a compatible cable plan, you may even get a Wi-Fi 6 router, which will give you higher speeds for multiple devices than Wi-Fi 5. Fiber internet plans from Optimum will often include the Wi-Fi 6 gateway as well. If you would rather use your own modem and router, Optimum will allow it. Just be sure to check for compatibility with their specs. Standard installation is free with Optimum plans.

Xfinity offers two different gateways and popular Flex 4K streaming TV box

For TV fans, Xfinity internet service brings the added bonus of its free Flex 4K streaming box [6]. This convenient gadget will work much like a Roku box to consolidate your streaming apps, plus give you over 10,000 free movies and shows, free channels, and a voice remote. Xfinity TV customers are not eligible for a free Flex 4K, however. For your modem and router, you will get the xFi Gateway with its multi-gig speed capability, Wi-Fi 6E, parental controls and security protection [7]. Or you can upgrade to the xFi Complete, which includes unlimited data. Both require a rental fee after the promotional period that could be $15-25, which is part of why your price goes up. If you use your own router and modem to avoid the equipment fee, you will have to live with the 1.2 TB data cap. Installation fees will be similar to other providers at around $100 for a technician install and $15  for a self-install ($15).

Optimum customer satisfaction: the big question mark

With so many seemingly good points to its service and pricing, why has Optimum’s customer satisfaction scored significantly below average according to J.D. Power? [6] A random sampling of online user reviews seems to indicate two major complaints. The first is outages and failure of technical response. The second is a more general dissatisfaction with the phone system, being transferred around to different departments, and getting contradictory responses from different phone reps when trying to solve billing issues. Because this is a fairly even distribution of complaints, it’s likely that Optimum is just not quick enough in responding to customer concerns, whether they be technical or billing-related. We can’t know the reason for this dysfunction. Often, these kinds of responsiveness issues happen when companies are understaffed or have high staff turnover in their customer service. But until Optimum gets better ratings, we have to give them only 3 stars for customer satisfaction.  

Xfinity Customer Service shows improvement

Xfinity has not been known for strong customer service over the years. Online reviews continue to mention some problem areas. But Xfinity has been moving up in official rankings, and for that reason, we give them 4 stars for improving their customer experience. Xfinity has customer support on its website, with 24/7 chat for help and 24/7 tech support. An online status center allows you to check for outages and troubleshoot your service. The Xfinity app will make your online customer experience more streamlined. You can also find Xfinity help communities through Facebook, Twitter, and Reddit. Customer service rankings have been improving for Xfinity in recent years. In 2022, Xfinity ranked third in three of four regions in the J.D. Power Residential Internet Service Provider Customer Satisfaction Study  [8]. This ranking reflects Xfinity’s recent effort to improve their customer support. Though Xfinity’s customer support ratings from other sources are not always as high, overall, signs are getting better that you will be satisfied with your customer experience.