Black Friday - the day after Thanksgiving in the US - is one of the biggest shopping days of the year, and increasingly UK retailers are getting in on the action by slashing prices for one day only.
This year Black Friday falls on 28 November, and between now and then IBTimes UK will be keeping you up to date with the best technology deals from across the web. So far we know that Apple, Currys, John Lewis, Amazon and Argos will be offering Black Friday discounts, but these won't be revealed until the day itself.
For deals on iPhones, iPads and Macs in the US and UK, visit our dedicated Black Friday Apple deals page. For now, here is a selection of smartphone discounts already available in the US.
We'll be updating this page constantly between now and 28 November with deals from both the US and UK.
Best Buy - $1 Samsung Galaxy S5
Best Buy is selling the Samsung Galaxy S5 on Verizon, AT&T and Sprint for just $1 with a two-year contract, a huge discount on the regular price of $199.99.
Target - $99.99 Samsung Galaxy Note 3
Target is selling the Samsung Galaxy Note 3 on Verizon for $99.99, which is a $200 saving on the regular price.
Target - $49.99 HTC One (M8)
The HTC One (M8) has had its price cut for Black Friday from $199.99 to $49.99 on a two year contract with Verizon.
Best Buy - $49.99 LG G3
The LG G3 is on offer at Best Buy for $49.99 with a two year contract from Sprint, AT&T or Verizon, down from $199.99.
Best Buy - $0.00 Nokia Lumia 1020
The Nokia Lumia 1020 is currently free on a two year AT&T contract at Best Buy
UK retailers are yet to launch their Black Friday deals, but many have already set up pages counting down to when the price cuts come into effect. We've linked to those pages below and will update this article with the best deals as they become available through the month.
Amazon - Some deals available now, but most start on 24 November
Argos - Countdown page live now, with discounts starting on 28 November
Currys - Countdown page live now, with discounts starting on 28 November
John Lewis - Discounts to start online on 28 November