Amazon's second Prime Day is done and dusted.

The sale promotion proved to be a big hit for the retail giant. In fact, it called the day its "biggest day ever", marking a strategic win for Amazon, which likely landed more Prime members by offering customers deals they couldn't resist. It also probably made existing Prime members feel better about forking over cash for subscriptions, as they got access to deals regulars customers couldn't get.

“Prime itself is the best deal in the history of shopping, and Prime Day was created as a special benefit exclusively for our Prime members,” said Greg Greeley, vice president of Amazon Prime, in a statement. “We want to thank our tens of millions of members around the world for making this the biggest day in the history of Amazon. We hope you had as much fun as we did. After yesterday’s results, we’ll definitely be doing this again.”

Amazon said orders surpassed Prime Day 2015 by more than 60 per cent worldwide and 50 per cent in the US. Prime member orders on the Amazon app also surpassed Prime Day 2015 mobile app orders by more than 2 times - largely thanks to more than a million customers who used the Amazon app for the first time on Prime Day to shop and take advantage of the deals.

Amazon Echo owners even bought on average one Alexa-exclusive deal per second using their voice.

Amazon Fire TV devices: Amazon sold over 2.5 times more Amazon Fire TV devices compared to Prime Day 2015, with the Fire TV Stick landing the 'best-selling Amazon device" title.

Toys: More than 2 million toys were purchased.

Televisions: More than 90,000 TVs were purchased.

Kindle ereaders: "Hundreds of thousands" of Kindle e-readers were purchased. Prime Members also saved over $1 million on Kindle Unlimited memberships.

Amazon Echo: In the US, Amazon devices were up over 3 times compared to Prime Day 2015. It was also the biggest day ever for Amazon Echo - up over 2.5 times compared to previous record day.

Dash buttons: In the US, the most popular Amazon Dash Button brands purchased were Cascade, Charmin, and Tide, though there was no mention of how many sold.

Headphones: In the US, more than 200,000 headphones were purchased. And in Canada, the top-selling headphones were the Sennheiser HD 598 Special-Edition Over-Ears.

Robot vacuums: In the US, more than 23,000 iRobot Roomba 614 vacuum cleaning robots were purchased.

Lenovo laptops: In the US, more than 14,000 Lenovo laptops were purchased.

Smart toothbrushes: In the UK, the Oral-B Pro 6000 CrossAction electric toothbrush with Bluetooth connectivity was a top-seller.

Memory sticks: In Spain, the SanDisk USB memory stick was a top-seller, whereas in Italy, the top-seller was the Lexar JumpDrive.

Prime TV and movies: The top three Prime Day deal titles purchased or rented were Deadpool, Kung Fu Panda 3, and 13 Hours: The Secret Soldiers of Benghazi.

Movies: In France and Belgium, the Game of Thrones DVD (season one through four) was a top-seller.

Check out some of the best Prime Day deals were in Pocket-lint's round-up: