Cheapest SIM-only for iPhone 13
What a iPhone 13 really costs a month when you buy it refurbished and pair it with SIM-only. Every price below is one we've checked.
By The SimSift team · Updated
Sift's picks for iPhone 13
Cheapest overall
Mozillion 1GB, 24-month contract: £2.50 a month. With the phone: £9.67 a month. Lowest 24-month cost of everything we've checked.
See planAdBest everyday value
Mozillion 30GB, 24-month contract: £7 a month. With the phone: £14.17 a month. Cheapest plan with 20GB or more, enough for most people.
See planAdBest for lots of data
Mozillion 100GB, 24-month contract: £11 a month. With the phone: £18.17 a month. Cheapest plan with 100GB or more.
See planAdBest with no contract
Mozillion 1GB, 30-day rolling: £2.80 a month. With the phone: £9.97 a month. 30-day rolling, so you can leave any month.
See planAdBest with no credit check
Mozillion 1GB, 12-month contract: £2.75 a month. With the phone: £9.92 a month. The network doesn't run a credit check.
See planAdCheapest SIM-only plans for a iPhone 13
Any of these plans works in an unlocked iPhone 13. Refurbished phones from Back Market are sold unlocked. Up to three plans per network, cheapest 24-month cost first.
| Plan | Price | SIM over 24 months | Phone + SIM a month | Link |
|---|---|---|---|---|
| Mozillion 1GB · 24-month contract · eSIM | £2.50 a month | £60 | £9.67 | See planAd |
| Mozillion 1GB · 12-month contract · eSIM | £2.75 a month | £66 | £9.92 | See planAd |
| Mozillion 1GB · 30-day rolling · eSIM | £2.80 a month | £67.20 | £9.97 | See planAd |
| Lebara 5GB · 30-day rolling | £5 a month | £120 | £12.17 | See planAd |
| Ecotalk 3GB · 30-day rolling | £8 a month | £192 | £15.17 | See planAd |
| Sky Mobile 5GB · 24-month contract · eSIM | £6 a month for 12 months, then £10 | £192 | £15.17 | See planAd |
| Lebara 30GB · 30-day rolling | £10 a month | £240 | £17.17 | See planAd |
| Ecotalk 10GB · 30-day rolling | £12 a month | £288 | £19.17 | See planAd |
| Sky Mobile 5GB · 30-day rolling · eSIM | £11 a month for 12 months, then £13 | £288 | £19.17 | See planAd |
| Sky Mobile 25GB · 24-month contract · eSIM | £10 a month for 12 months, then £14 | £288 | £19.17 | See planAd |
Sky Mobile: Sky says data plan prices may increase, including during the minimum term, without stating a fixed amount, so our true cost can't include any future rise. Source: sky.com/shop/mobile/plans.
Refurbished iPhone 13 prices today
| Phone | Price | Link |
|---|---|---|
| iPhone 13 128GB - Starlight - Unlocked 12-month warranty | £172 | See on Back MarketAd |
| iPhone 13 256GB - Blue - Unlocked 12-month warranty | £246 | See on Back MarketAd |
| iPhone 13 512GB - Pink - Unlocked 12-month warranty | £280 | See on Back MarketAd |
More storage sizes, colours and our price history: iPhone 13 refurbished prices.
How we work out the true monthly cost
We add the phone's price to everything you'd pay for the SIM plan over 24 months: any introductory price, the price after it, and any yearly rise the network has published for contracts. Then we divide by 24. Rolling plans are counted at today's price for all 24 months, because the network can change it. Nothing here is a guess: if a price is more than 48 hours old, we don't show it. See how we rank.
Links marked Ad are affiliate links: SimSift may earn commission if you buy, at no extra cost to you. It never changes what we recommend or the order we show. How we make money.
Phone prices from Back Market's official Awin product feed, checked 4 Nov 2026, 16:38 UK time. SIM prices checked 4 Nov 2026, 16:38 UK time on each network's own feed or site. Prices change often: the price on the retailer's site is the one you pay. How we check prices.
Questions people ask
What's the cheapest SIM-only deal for a iPhone 13?
Today it's Mozillion 1GB, 24-month contract, at £2.50 a month, from the 52 plans we've checked.
Is a refurbished iPhone 13 plus SIM-only cheaper than a contract?
Often, yes, but compare like for like. Add up everything a contract costs over its full term, then compare it with the phone price plus the SIM plan over the same months. With our cheapest pairing that's £9.67 a month over 24 months. We don't list handset contracts, so check the contract's total on the network's site.
Will any SIM work in a refurbished iPhone 13?
Back Market sells phones unlocked, so any UK network's SIM should work. If you want eSIM, look for the eSIM tag in the table.