Is unlimited really unlimited? Compared with fixed GB
Nearly every unlimited plan has a daily full-speed cap, so the choice comes down to that number.
Author: eSIMonline Editorial · eSIMonline editorial teamLast updated: September 1, 2026
Reading the FUP threshold
An unlimited plan states a daily full-speed allowance — often one or two gigabytes. Past it, speed is reduced until the next day. If you routinely exceed that, a large fixed-GB plan may feel faster.
Thresholds and post-cap speeds differ per plan — always read the specific plan page before buying.
Related
| Criterion | Unlimited | Fixed GB |
|---|---|---|
| Risk of running out | Never runs out, but slows after the daily cap | Can run out; you top up |
| Speed late in the day | Reduced if you used heavily since morning | Full speed until the allowance ends |
| Best matched to | Steady moderate use every day | Heavy some days, light others |
| Predictability | One payment, no top-up decisions | May need a top-up if you underestimate |
Pick Unlimited
Best when your daily use is consistent and you do not want to watch a counter.
Pick Fixed GB
Best when only some days are heavy, or you know your usage precisely.
FAQ
Do maps still work after the cap?+
Usually basic use still works but slower; high-definition video generally will not.