Just before Samsung's Galaxy Watch 3 debuts tomorrow, there was another major two-part leak.

Thanks to Evan Blass, we can see a series of videos that AT&T has created for new Galaxy Watch 3 owners. You can also see the entire user manual, which explains the smartwatch's features and important functions.

The watches come in three colors, all with leather bands: one model is LTE-enabled and allows users to make phone calls through the watch or connect to the Internet independently. The other is a Bluetooth-only version that requires a connection to a smartphone for full operation.

The LTE version can use AT&T's NumberSync feature, which allows remote control of a smartphone via the watch, including music streaming and calling.

In the video thread that follows, the use of voicemail, navigation through the watch's rotating bezel, Bixby Voice and gesture controls, Samsung Health app features, and tracking options for sleep and women's health are also Explained. It also details the Galaxy Watch 3's drop detection feature.

There is also a more mundane instructional video that shows how to charge the watch, customize the home screen, remove and insert the wristband, and reset the device.

Blass has also made what appears to be a full user manual for the Galaxy Watch 3 available on Patreon for subscribers only. These include details on Galaxy Watch 3 features such as the GPS antenna and barometric pressure sensor.

Physical features of the watch include a unique navigation bezel, light and heart rate sensors, along with common features such as a speaker, microphone, touch screen, and dual-button navigation.

The watch also works with Samsung's wireless power-sharing feature and can be charged from the back of a Samsung smartphone. This could be a handy feature if you suddenly realize your Watch 3 is not charging and you were already on your way to the gym

The manual proves that many features for Samsung's latest wearable OS, Tizen OS 5.5, have returned. While not a highlight feature, managing connections and sound, changing the watch face design, and initiating voice recording are still important smartwatch functions.

There are also PowerPoint controls and Microsoft Outlook integration; the second is more noteworthy because it is not Samsung's own email app; Watch 3 not only offers fitness tracking and useful daily notifications, but also productivity tasks, it also appears to assist with tasks as well.

It may seem unnecessary after reading all these leaks, but we can see Samsung officially unveiling the Galaxy Watch 3 at the Galaxy Unpacked 2020 event on August 5. If you need further incentive to watch, the Samsung Galaxy Note 20, Galaxy Z Fold 2, and Samsung Galaxy Tab S7 will also be shown for the first time.