Independence note: askotto is an independent consumer-information and consultancy publisher. We are not a mobile network, and we are not owned by, partnered with, or endorsed by Three, O2, Sky Mobile, EE, Vodafone or any provider named in these reports. Everything here is general guidance, marked and written by our own reviewers; confirm current details with the network before acting. Our phone and WhatsApp lines reach askotto consultants only — never a network's own customer service.
Section 01
The sizing test
Three months of truth
- Open the usage screen in your network app.
- Read the last three months of actual consumption.
- Buy the real average plus modest headroom — not the guess, which runs about double.
Section 02
Where unlimited bends
Handset use at homeGenuinely unmetered on all four networks.
TetheringSome plan generations cap hotspot data even on unlimited — the laptop-worker's clause.
Saturated mastsExtreme outliers can queue briefly at slammed sites; normal heavy use never notices.
AbroadFair-use ceilings everywhere; per-GB beyond.
Section 03
Add-ons versus upgrades
A heavy month is an add-on problem; a heavy year is an upgrade problem. One-off boosts bought in-app cover holidays and house moves without repricing the other eleven months. Special mechanics — Sky's reserve bank, VOXI's exempt social apps, rollover tiers — are priced into the comparison like any other feature, not treated as magic.
Independence note: askotto is an independent consumer-information and consultancy publisher. We are not a mobile network, and we are not owned by, partnered with, or endorsed by Three, O2, Sky Mobile, EE, Vodafone or any provider named in these reports. Everything here is general guidance, marked and written by our own reviewers; confirm current details with the network before acting. Our phone and WhatsApp lines reach askotto consultants only — never a network's own customer service.