60 Days on Cox Gigablast: The Honest Verdict
We ran Cox Gigablast (1.2 Gbps) in a four-person household for 60 days, logging uptime, real speed, and every support interaction.
What Cox Gets Right
- Delivered speed held steady. Median download stayed at 86% of advertised throughout the test, with only a 9% peak-hour dip — better peak-hour stability than we've measured on some larger cable ISPs.
- StraightUp Internet is genuinely simple. One price, no contract, no surprise increase — rare in the cable ISP industry.
- Panoramic WiFi app is clean and gives granular device-level controls without feeling bloated.
Where Cox Falls Short
- The 1.25TB data cap applies to all non-StraightUp plans and Cox enforces it more strictly than some competitors — we hit an overage charge in week 6 from a combination of cloud backups and 4K streaming.
- Regional availability is limited compared to Xfinity — Cox only serves about 19 states.
- Promo pricing still requires active management — the standard-plan price jump after 12 months isn't automatically flagged.
The Verdict
Cox is a solid, dependable cable ISP where it's available, with delivered speeds that consistently back up the marketing. The data cap is the single biggest factor to plan around — either budget for it, add unlimited data, or go StraightUp Internet from day one if your household streams heavily.