Skip to content
Best Internet US
vs

Optimum vs Xfinity

Optimum ranks higher on our formula, 71 to 67 on each provider's best plan. It is also cheaper over two years (from $55/mo all-in) and sells the faster top plan (5 Gbps).

Prices last checked September 2026.

Side by side

Optimum and Xfinity compared

Real cost is the two-year monthly average with the promo step-up, equipment rental and installation folded in.

Optimum compared with Xfinity, as of September 2026
MeasureOptimumXfinity
TechnologyCable, FiberCable, Fiber
Fastest plan5 Gbps2 Gbps
Upload on fastest plan5 Gbps300 Mbps
Lowest advertised price$40/mo$30/mo
Lowest real cost$55/mo$60/mo
Price steps up after promoOn some plansOn some plans
Data capsNoneOn some plans
ContractsNone requiredNone required
Equipment feeIncludedUp to $15/mo
States served1440
Our rating (best plan)71/10067/100

Plans

Every plan from both

Optimum

CableFiberNot yet checked
  • 300 Mbps300 Mbps · $40/mo · real $55
  • 500 Mbps500 Mbps · $60/mo · real $72.50
  • 1 Gig1 Gbps · $70/mo · real $82.50
  • 5 Gig Fiber5 Gbps · $180/mo · real $180

Xfinity

CableFiberOut of date — checked Sep 11, 2026
  • Connect150 Mbps · $30/mo · real $60
  • Fast500 Mbps · $55/mo · real $85
  • Superfast800 Mbps · $65/mo · real $80
  • Gigabit1.1 Gbps · $75/mo · real $90
  • Gigabit X22 Gbps · $95/mo · real $95

Honest assessment

Where each one wins

Optimum

  • No data caps
  • Fiber tiers up to 5 Gig in NY/NJ/CT
  • Frequent promotional pricing
  • Service quality varies by market
  • Price increases after promo
  • Legacy Suddenlink areas run older plant

Xfinity

  • Available in 40 states
  • Multi-gig tiers in most markets
  • No contract on most plans
  • Price rises after 12–24 months
  • Slow upload on non-fiber tiers
  • 1.2 TB data cap in many regions

Head to head

Cities where Optimum and Xfinity compete

Markets where we have both on record. Each page ranks every provider there.

Questions

Optimum vs Xfinity, answered

Is Optimum or Xfinity better?

Optimum ranks higher on our formula, 71 to 67 on each provider's best plan. It is also cheaper over two years (from $55/mo all-in) and sells the faster top plan (5 Gbps).

Which is cheaper, Optimum or Xfinity?

Optimum has the lower real cost: $55 a month averaged over two years with fees included, against $60 for Xfinity. The advertised entry prices are $40 for Optimum and $30 for Xfinity.

Which is faster, Optimum or Xfinity?

Optimum sells the faster top plan, at 5 Gbps down and 5 Gbps up. Xfinity tops out at 2 Gbps down and 300 Mbps up. For most households upload speed matters more than the headline download figure.

Where can I get both Optimum and Xfinity?

We have both on record in 6 markets, including Newark, NJ; Jersey City, NJ; Little Rock, AR; Bridgeport, CT; New Haven, CT. Availability still varies street by street.

More comparisons

Compare something else

All comparisons →