Acaia scales have been some of our favorites for a while now. The Acaia Lunar offers perfect shot weighing, and the Pearl is one of the best pourover scaled you can get. One of the reasons Acaia's products are so easy to recommend is their connectivity. By using smart apps that help you measure things like flow rate and temperatures, these scales are almost magical. Enter the Pearl Model S. The Model S is an update to the Pearl style scale. While the existing Pearl is still a powerful scale, the Model S steps things up a notch. On the surface, this scale looks quite similar to its predecessor. The most notable difference comes in the form of its new programming options. This is where the aforementioned app connectivity comes into play. Previous Pearl models featured connectivity with Acaia's Brewbar app, which allowed you to monitor all kinds of real time metrics while brewing pourover. While this was a fun, useful tool for home baristas, the Model S takes this concept further with the Brewguide app. Instead of simply allowing you to monitor brew elements, the Brewguide app actually connects you with other users. Roasters can upload the perfect pourover recipes for their roasts, and pro baristas can share their favorite techniques. When you find a recipe that you like you can send it to the scale. From there, the Model S will walk you through each pour, ensuring that you hit the proper flow rates and saturation levels. This kind of walkthrough integration is perfect for newcomers to pourover. Even for veteran home baristas, the ability to experiment with and share recipes should be a boon. Beyond all of these fancy app features, this is still the same powerful, durable scale that Acaia is known for. Water resistance will protect the Model S from splashes during brewing, and it is accurate to a tenth of a gram. For those looking for the smartest scale you can buy, check out the Acaia Pearl Model S here!