O2 Unlimited + 125GB at £21 Deals
Here are details of the O2 Unlimited + 125GB at £21 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 + 125GB at £21 Tariff Details
| Network | Tariff Name | Contract Length | Free Mins | Free Txts | Initial Monthly Cost |
|---|---|---|---|---|---|
 | O2 Unlimited + 125GB at £21 (1) | Not Applicable | Unlimited | Unlimited | £21.00 Monthly price will increase every April by £1.80 |
Mobiles Available on O2 Unlimited + 125GB at £21
| Phone | Upfront Cost | Offer Details | Total Cost | Buy Online |
|---|---|---|---|---|
 Samsung Galaxy S24 Ultra 256GB Titanium Grey | £759.99 | Samsung Galaxy S24 Ultra 256GB Titanium Grey | equivalent to £780.99/mth over 1 mths |   View More Info |
 Samsung Galaxy S24 Ultra 256GB Titanium Violet | £759.99 | Samsung Galaxy S24 Ultra 256GB Titanium Violet | equivalent to £780.99/mth over 1 mths | View More Info |
 Samsung Galaxy S24 Ultra 256GB Titanium Yellow | £759.99 | Samsung Galaxy S24 Ultra 256GB Titanium Yellow | equivalent to £780.99/mth over 1 mths | View More Info |
 Samsung Galaxy S24 Ultra 256GB Titanium Black | £759.99 | Samsung Galaxy S24 Ultra 256GB Titanium Black | equivalent to £780.99/mth over 1 mths | View More Info |
 Samsung Galaxy Z Flip7 FE 128GB Black | £849.00 | Samsung Galaxy Z Flip7 FE 128GB Black | equivalent to £870.00/mth over 1 mths | View More Info |
 Samsung Galaxy Z Flip7 FE 128GB White | £849.00 | Samsung Galaxy Z Flip7 FE 128GB White | equivalent to £870.00/mth over 1 mths | View More Info |
 Samsung Galaxy S25 Plus 256GB Navy | £859.00 | Samsung Galaxy S25 Plus 256GB Navy | equivalent to £880.00/mth over 1 mths | View More Info |
 Samsung Galaxy S25 Plus 256GB Silver Shadow | £859.00 | Samsung Galaxy S25 Plus 256GB Silver Shadow | equivalent to £880.00/mth over 1 mths | View More Info |
 Samsung Galaxy S25 Plus 256GB Mint | £859.00 | Samsung Galaxy S25 Plus 256GB Mint | equivalent to £880.00/mth over 1 mths | View More Info |
 Apple iPhone 15 Pro Max 256GB Black Titanium | £859.99 | Apple iPhone 15 Pro Max 256GB Black Titanium | equivalent to £880.99/mth over 1 mths | View More Info |
 Apple iPhone 15 Pro Max 256GB White Titanium | £859.99 | Apple iPhone 15 Pro Max 256GB White Titanium | equivalent to £880.99/mth over 1 mths | View More Info |
 Apple iPhone 15 Pro Max 256GB Natural Titanium | £859.99 | Apple iPhone 15 Pro Max 256GB Natural Titanium | equivalent to £880.99/mth over 1 mths | View More Info |
 Apple iPhone 15 Pro Max 256GB Blue Titanium | £859.99 | Apple iPhone 15 Pro Max 256GB Blue Titanium | equivalent to £880.99/mth over 1 mths | View More Info |
 Samsung Galaxy Z Flip7 256GB Coralred | £1049.00 | Samsung Galaxy Z Flip7 256GB Coralred | equivalent to £1,070.00/mth over 1 mths | View More Info |
 Samsung Galaxy Z Flip7 256GB Blue Shadow | £1049.00 | Samsung Galaxy Z Flip7 256GB Blue Shadow | equivalent to £1,070.00/mth over 1 mths | View More Info |
 Samsung Galaxy Z Flip7 256GB Jetblack | £1049.00 | Samsung Galaxy Z Flip7 256GB Jetblack | equivalent to £1,070.00/mth over 1 mths | View More Info |
 Samsung Galaxy Z Fold7 256GB Blue Shadow | £1679.00 | Samsung Galaxy Z Fold7 256GB Blue Shadow | equivalent to £1,700.00/mth over 1 mths | View More Info |
 Samsung Galaxy Z Fold7 256GB Jetblack | £1679.00 | Samsung Galaxy Z Fold7 256GB Jetblack | equivalent to £1,700.00/mth over 1 mths | View More Info |
 Samsung Galaxy Z Fold7 256GB Silver Shadow | £1679.00 | Samsung Galaxy Z Fold7 256GB Silver Shadow | equivalent to £1,700.00/mth over 1 mths | View More Info |