O2 Unlimited + 100GB at £20 Deals
Here are details of the O2 Unlimited + 100GB at £20 tariff along with all the mobile phones currently available on the tariff. Alongside each phone is information about the cheapest deal and you can get full details by clicking on the 'Buy Now' links which will take you to the relevant retailer's site.
O2 Unlimited + 100GB at £20 Tariff Details
| Network | Tariff Name | Contract Length | Free Mins | Free Txts | Initial Monthly Cost |
|---|---|---|---|---|---|
![]() | O2 Unlimited + 100GB at £20 (24) | 24 Months | Unlimited | Unlimited | £20.00 Monthly price will increase every April by £2.50 |
Mobiles Available on O2 Unlimited + 100GB at £20
| Phone | Upfront Cost | Monthly Cost | Offer Details | Total Cost | Buy Online |
|---|---|---|---|---|---|
Samsung Galaxy A56 256GB Awesome Graphite | £59.00 | £20.00 (price may rise during contract) | Samsung Galaxy A56 256GB Awesome Graphite | £539.00 | ![]() View More Info |
Samsung Galaxy A56 256GB Awesome Lightgrey | £59.00 | £20.00 (price may rise during contract) | Samsung Galaxy A56 256GB Awesome Lightgrey | £539.00 | ![]() View More Info |
Samsung Galaxy A56 256GB Awesome Olive | £59.00 | £20.00 (price may rise during contract) | Samsung Galaxy A56 256GB Awesome Olive | £539.00 | ![]() View More Info |
Samsung Galaxy A56 256GB Awesome Pink | £59.00 | £20.00 (price may rise during contract) | Samsung Galaxy A56 256GB Awesome Pink | £539.00 | ![]() View More Info |
Samsung Galaxy S24 128GB Onyx Black | £99.00 | £20.00 (price may rise during contract) | Samsung Galaxy S24 128GB Onyx Black | £579.00 | ![]() View More Info |
Samsung Galaxy S25 FE 128GB Icyblue | £179.00 | £20.00 (price may rise during contract) | Samsung Galaxy S25 FE 128GB Icyblue | £659.00 | ![]() View More Info |
Samsung Galaxy S25 FE 512GB Icyblue | £459.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 FE 512GB Icyblue | £939.00 | ![]() View More Info |
Samsung Galaxy S25 256GB Icyblue | £459.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 256GB Icyblue | £939.00 | ![]() View More Info |
Samsung Galaxy S25 256GB Coralred | £459.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 256GB Coralred | £939.00 | ![]() View More Info |
Samsung Galaxy S25 FE 512GB Navy | £459.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 FE 512GB Navy | £939.00 | ![]() View More Info |
Samsung Galaxy S25 256GB Pinkgold | £459.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 256GB Pinkgold | £939.00 | ![]() View More Info |
Samsung Galaxy S25 FE 512GB White | £459.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 FE 512GB White | £939.00 | ![]() View More Info |
Samsung Galaxy S25 256GB Silver Shadow | £459.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 256GB Silver Shadow | £939.00 | ![]() View More Info |
Samsung Galaxy S25 256GB Mint | £459.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 256GB Mint | £939.00 | ![]() View More Info |
Samsung Galaxy S25 256GB Navy | £459.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 256GB Navy | £939.00 | ![]() View More Info |
Samsung Galaxy S25 256GB Blueblack | £459.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 256GB Blueblack | £939.00 | ![]() View More Info |
Samsung Galaxy S25 FE 512GB Jetblack | £459.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 FE 512GB Jetblack | £939.00 | ![]() View More Info |
Samsung Galaxy S25 512GB Navy | £499.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 512GB Navy | £979.00 | ![]() View More Info |
Samsung Galaxy S25 512GB Blueblack | £499.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 512GB Blueblack | £979.00 | ![]() View More Info |
Samsung Galaxy S25 512GB Icyblue | £499.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 512GB Icyblue | £979.00 | ![]() View More Info |
Samsung Galaxy S25 512GB Pinkgold | £499.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 512GB Pinkgold | £979.00 | ![]() View More Info |
Samsung Galaxy S25 512GB Silver Shadow | £499.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 512GB Silver Shadow | £979.00 | ![]() View More Info |
Samsung Galaxy S25 512GB Mint | £499.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 512GB Mint | £979.00 | ![]() View More Info |
Samsung Galaxy S25 Edge 512GB Titanium Jetblack | £629.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 Edge 512GB Titanium Jetblack | £1109.00 | ![]() View More Info |
Samsung Galaxy S25 Edge 512GB Titanium Icyblue | £629.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 Edge 512GB Titanium Icyblue | £1109.00 | ![]() View More Info |
Samsung Galaxy S25 Edge 512GB Titanium Silver | £629.00 | £20.00 £22.50 from Apr-27 | Samsung Galaxy S25 Edge 512GB Titanium Silver | £1109.00 | ![]() View More Info |


Samsung Galaxy A56 256GB Awesome Graphite
View More Info
Samsung Galaxy A56 256GB Awesome Lightgrey
Samsung Galaxy A56 256GB Awesome Olive
Samsung Galaxy A56 256GB Awesome Pink
Samsung Galaxy S24 128GB Onyx Black
Samsung Galaxy S25 FE 128GB Icyblue
Samsung Galaxy S25 FE 512GB Icyblue
Samsung Galaxy S25 256GB Icyblue
Samsung Galaxy S25 256GB Coralred
Samsung Galaxy S25 FE 512GB Navy
Samsung Galaxy S25 256GB Pinkgold
Samsung Galaxy S25 FE 512GB White
Samsung Galaxy S25 256GB Silver Shadow
Samsung Galaxy S25 256GB Mint
Samsung Galaxy S25 256GB Navy
Samsung Galaxy S25 256GB Blueblack
Samsung Galaxy S25 FE 512GB Jetblack
Samsung Galaxy S25 512GB Navy
Samsung Galaxy S25 512GB Blueblack
Samsung Galaxy S25 512GB Icyblue
Samsung Galaxy S25 512GB Pinkgold
Samsung Galaxy S25 512GB Silver Shadow
Samsung Galaxy S25 512GB Mint
Samsung Galaxy S25 Edge 512GB Titanium Jetblack
Samsung Galaxy S25 Edge 512GB Titanium Icyblue
Samsung Galaxy S25 Edge 512GB Titanium Silver