5GB
£5a month
See on Lebara (Ad)SIM comparison
Lebara vs Smarty vs VOXI: which cheap SIM wins?
Three popular budget SIMs on three host networks. Prices below are ones we have re-checked ourselves in the last 48 hours — ranked by what you actually pay.
Quick answer: of the three, the cheapest unlimited plan we've checked is Smarty at £20 a month; the cheapest with 30GB or more is Lebara 30GB at £10. Lebara runs on Vodafone, Smarty on Three, and VOXI on the combined Vodafone and Three network.
Prices checked 9 Nov 2026, 18:08 UK time · Last updatedLebara (Awin 30681) and VOXI (Awin 10951) links are affiliate links, marked Ad. Smarty is not a partner yet, so its link is plain. Ranking on SimSift is by true monthly cost, never by commission. How we make money.
Side-by-side
| Lebara | Smarty | VOXI | |
|---|---|---|---|
| Host network | Vodafone | Three | Vodafone + Three |
| Cheapest plan we checked | £5 (5GB) | £6 (5GB) | £10 (20GB) |
| Unlimited data | £25 | £20 | £35 |
| Contract | 30-day rolling | Rolling monthly | 30-day rolling |
| Social / extras | International call focus | Simple Three-network SIMs | Unlimited data for selected social apps on every plan |
| Link type on SimSift | Affiliate (Ad) | Plain link (not a partner yet) | Affiliate (Ad) |
Lebara plans we've checked
30GB
£10a month
See on Lebara (Ad)50GB
£15a month
See on Lebara (Ad)100GB
£20a month
See on Lebara (Ad)Unlimited data
£25a month
See on Lebara (Ad)Unlimited data
£30a month
See on Lebara (Ad)Smarty plans we've checked
5GB
£6a month
See on Smarty16GB
£8a month
See on Smarty20GB
£9a month
See on Smarty40GB
£10a month
See on Smarty100GB
£12a month
See on Smarty150GB
£15a month
See on SmartyVOXI plans we've checked
20GB
£10a month
See on VOXI (Ad)25GB
£12a month
See on VOXI (Ad)35GB
£15a month
See on VOXI (Ad)100GB
£20a month
See on VOXI (Ad)Unlimited data
£35a month
See on VOXI (Ad)Sources: Lebara plans from lebara.co.uk; Smarty from smarty.co.uk/sim-only; VOXI from voxi.co.uk/sim-only-plans. Each source is dropped automatically if it hasn't been re-checked for 48 hours. Offers change — confirm the final price on the network's site before you switch.
Questions people ask
Which network does each use?
Lebara says it runs on Vodafone. Smarty's plans page refers to Three. VOXI says it runs on "The Nation's Network", the combined Vodafone and Three network.
Do they include EU roaming?
Lebara says its SIM-only plans include Roam Like Home in the EU/EEA (and India) up to a data cap. Smarty and VOXI typically sell roaming as an add-on — check each site before you travel.
Are the contracts rolling?
Yes for the plans we list: Lebara, Smarty and VOXI SIMs here are 30-day rolling (or short intro then rolling). You can usually leave at the end of a month.
Why is Smarty a plain link?
Smarty's Awin programme hasn't approved SimSift yet, so we show its checked prices with a plain link to smarty.co.uk (no affiliate tracking). Lebara and VOXI use labelled affiliate links.
How does SimSift rank them?
By true monthly cost on the SIM-only hub. Commission never changes the order. How we rank.