New HidrateSpark steel smart water bottles! They connect via Bluetooth to your phone to remind you to drink water and track your intake. Fancier than a Stanley tumbler! The boxes have been opened, but the bottles are new and unused, never synced to the app. I got them for the family but decided to not use them. These are 21 oz. stainless steel and have the chug lid. The colors I have are black marble and white marble, which were limited edition colors and no longer available. Official product photos are included in this listing, and product page can be found here: https://hidratespark.com/products/hidratespark-pro-21oz-smart-water-bottle