The Galaxy Watch4 Classic SM-R890 is the 46 mm Bluetooth model, introduced in 2021. Its stainless-steel case has two buttons and a physical rotating bezel for moving through the watch interface. This page uses the Canadian SM-R890NZKAXAC identifier; LTE models have a different model number.

The 46 mm model has a 1.4-inch, 450 × 450 display, a 361 mAh battery, 1.5 GB of RAM and 16 GB of storage. It runs Wear OS powered by Samsung. Check the version installed on your watch before choosing an app or watch-face package.

Pair it with a compatible Android phone through Galaxy Wearable. Samsung's launch requirements list Android 6.0 or later and more than 1.5 GB of RAM; companion-app requirements can change. Some health features depend on the country and paired phone, so check Samsung's local support information for availability.