Samsung Galaxy Watch8 Classic (46 mm, Bluetooth) / Samsung Galaxy Watch7 44 mm Bluetooth

It is sold in one size only.

Sapphire crystal is a cover material that resists scratches better than ordinary glass.

The 2000-nit peak helps readability in sunlight; using the always-on display shortens battery life.

The rotating bezel lets you scroll lists and apps without touching the screen; its position is read by a 3D Hall sensor found only on the Classic. Quick Button can be assigned to an app or function.

Samsung says its charge times were measured with a separately sold 25 W adapter.

Setup and use need an Android 12 or later phone with more than 1.5 GB of memory and Google Mobile Services.

Health features are for general wellness and fitness, not medical diagnosis.

The second frequency (L5) helps accuracy where signals bounce, such as among tall buildings or under trees.

The L5 band helps separate signals reflected by tall buildings and trees; dual-frequency mode can increase battery use.

This version has no cellular connection; calls and notifications come through the paired phone.

5ATM suits surface water use such as swimming, not diving or high-speed water sports. Samsung says its MIL-STD-810H testing cycled the watch between –20 °C and 50 °C for 6 hours in total.

5ATM describes water resistance suitable for surface swimming; it is not for diving or high-speed water sports.

A fast wireless charging puck is in the box, but no wall adapter.

Availability of ECG and blood pressure depends on country and paired phone; blood pressure measurement is not offered in the US.

Energy Score turns sleep, activity and heart data into a daily readiness score; AGEs Index is experimental and not for diagnosis.