Network vs network
VOXI vs Three
Different masts, different deals. We compare price rises in pounds, roaming, credit checks and today’s cheapest SIMs on both.
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Do they use the same masts?
No. VOXI uses Vodafone’s masts and Three uses its own masts. Check coverage at home and work for both.
Which one raises prices?
VOXI: No annual rise. Three: +£1.80 to £2.30 every April by data.
Which is better abroad?
VOXI: Passes from £2.60 a day. Three: Go Roam £2.75 a day unless included.
VOXI£240
Three£285.60Cheapest SIM with 10GB or more × 24, plus April rises
Live prices; rises estimated for a plan starting this month.
Over 24 months, the cheapest 10GB+ SIM costs £240 on VOXI and £285.60 on Three once April rises are added — VOXI is £45.60 cheaper. VOXI runs on Vodafone’s masts; Three on its own masts.
Prices checked 28 October 2026 · facts checked monthly · How we compare
VOXI vs Three, side by side
| VOXI | Three | |
|---|---|---|
| Masts | Vodafone | Own masts |
| Annual price rise | No annual rise | +£1.80 to £2.30 every April by data |
| Roaming | Passes from £2.60 a day | Go Roam £2.75 a day unless included |
| Credit check | None | Hard check |
| eSIM | Yes | Yes |
| Wi-Fi Calling | Yes | Yes |
| Cheapest SIM, 10GB+ | £10 a month | £7 a month |
| Cheapest SIM, 30GB+ | £10 a month | £8 a month |
| Cheapest SIM, Unlimited | £35 a month | £12.42 a month |
Highlighted = better on that line. Facts from network terms and Ofcom; prices live.
Our verdict
On price, VOXI comes out ahead for a typical 10GB+ SIM: £45.60 less over two years once April rises are counted (VOXI rises add about £0, Three’s about £45.60).
Coverage differs: VOXI uses Vodafone’s masts and Three uses its own masts. Check both on the mast owner’s postcode checker for home and work before you decide.
Pick VOXI if…
- You want the lower 24-month cost for a 10GB+ SIM
- You want a price that doesn’t rise every year
- You want to avoid a credit check
- Vodafone signal is strongest where you live
Pick Three if…
- You travel and want roaming included
- Three’s own masts are strongest where you live
VOXI and Three SIM only deals, live
FAQ
VOXI vs Three questions
Is VOXI or Three cheaper?
VOXI, today: the cheapest 10GB+ SIM costs £10 a month, and over 24 months with April rises the gap is £45.60.
Do VOXI and Three use the same network?
No. VOXI uses Vodafone’s masts and Three uses its own masts.
Which has better roaming?
VOXI: Passes from £2.60 a day. Three: Go Roam £2.75 a day unless included.
Can I switch from VOXI to Three and keep my number?
Yes. Text PAC to 65075 from your VOXI phone, give the code to Three, and the number moves within one working day.