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① Our monthly price refers to Samsung Galaxy S8 on O2. £150 upfront cost. £33 per month. Inclusive monthly allowance is 500MB data unlimited minutes and unlimited texts. Trade-in applied to selected smartphones; Samsung Galaxy Note 4, Samsung Galaxy S6, Samsung Galaxy S6 edge, S6 edge plus, S7, S7 edge, iPhone 6, iPhone 6+, iPhone 6s, 6s+, 7 and 7 plus. Your smartphone must be in full working order, powered up and charged, and be in good visual condition. Offer available in store, online and calling us. Trade in must happen at point of purchase and only when you buy a Samsung S8 on a 24 month contract. All info accurate at time of publish 10.05.17. Offers ends 23rd May 17.

② If you find an upgrade, pay monthly SIM only or pay monthly deal for less at O2, EE or Vodafone, we'll match it and pay the equivalent of your first month's standard line rental via cheque. Applies to published prices only where the handset is in stock and available for immediate purchase or dispatch. Proof of competitor price(s) required. Applies to deals on a like for like basis, offered in the same sales channel and may be claimed at the time of purchase or up to 14 days after. Cannot be used in conjunction with other deals, including cash back, personalised variations offered directly to individual customers, offers via third parties or pre-order incentives. Applies to the UK and Ireland only. For full Terms and conditions click here or ask staff for full details.

*T&cs and methodology: Average saving is based on customers that purchased a new contract between 1st Dec 2016 and 31st Dec 2016. For 60% of customers we were able to directly compare the total cost of ownership of the deal purchased from Carphone Warehouse vs. The network's (Vodafone or O2 or EE) published website price. Total cost of ownership is calculated by: monthly cost x 24 + upfront cost - any cashback. Matched tariffs are where minutes, texts and data are the same. Total matchable transactions in this period were 79,653. The total match rate for December 2016 was 60% (includes iD where there is no match). This breaks down to 86% for O2, 90% for Vodafone and 48% for EE.  Excludes any deals with gifts or other promotions. Excludes any tariffs that we do not range or sell. View full terms and conditions here.

† Trade-in applied to selected smartphones: Samsung Note 4, Samsung Galaxy S6, Samsung Galaxy S6 edge, Samsung Galaxy S6 edge plus, Samsung Galaxy S7, Samsung Galaxy S7 edge, iPhone 6, iPhone 6+, iPhone 6S, iPhone 6S+, iPhone 7 and iPhone 7+. Your smartphone must be in full working order, powered up and charged, and be in good visual condition. Offer available in-store and online. Trade in must happen at the point of purchase in-store and only when you buy a Samsung Galaxy S8, Samsung Galaxy S8 Plus, Samsung Galaxy S7 and Samsung Galaxy S7 edge on either a 24 months’ contract or Sim free deal. Trade in value up to £150 will be taken off the upfront cost and any balance paid to the customer in cash or debit card. Only applicable when you have purchased a Samsung Galaxy S7, S7 Edge, S8 or S8 Plus from Carphone warehouse in store between 28th April and 25th May 2017. Maximum of 1 trade in claim per transaction. Terms and conditions apply. Contracts subject to credit check. All information is accurate at time of going to print. Networks may increase monthly price in line with Retail Price Index (RPI)

1 20GB for £20 available on Vodafone SIM only deals 

†† Networks may increase monthly price in line with Retail Price Index (RPI).