What does "unlimited" actually mean?
"Unlimited" means no hard data cap — your line won't be cut off at 10 GB or 30 GB. But it doesn't mean unlimited full-speed data. Every carrier throttles speeds after a "premium data" threshold, and on congested towers, lower-priority MVNOs slow down first. The tier matters as much as the label.
Which unlimited plan has the best hotspot?
AT&T Unlimited Premium leads on paper at 60 GB, followed by US Mobile Premium at 50 GB and T-Mobile Go5G Plus at 50 GB. Note that hotspot speeds after the threshold drop to 600 Kbps on most carriers — enough for email, not video calls.
Is an unlimited plan worth it if I'm mostly on Wi-Fi?
Probably not. If you're on Wi-Fi at home and work, a 5–15 GB plan from Mint Mobile or Tello will cost half as much and cover your actual usage. Run three months of your Settings app data readings before committing to unlimited.
Do unlimited plans include international coverage?
T-Mobile Go5G and Go5G Plus include Mexico and Canada at no extra charge, plus free texting in 200+ countries. Verizon and AT&T charge per-day international passes. Visible and most MVNOs have limited or no international coverage.
Will my speed slow down if I use a lot of data?
Yes — this is called deprioritization, and it's how carriers manage congestion. Premium-tier lines (Go5G Plus, Unlimited Plus, Unlimited Premium) get priority over entry-tier lines. On MVNOs, even premium tiers rank below the carrier's own customers during peak hours.