Samsung Galaxy Watch6 (40 mm) / Samsung Galaxy Watch5 Pro (45 mm)

The 44 mm model has a 1.5-inch, 480 × 480 display.

The bezel is raised above the display, which Samsung designs to protect the glass from knocks. There is no rotating bezel; menus are navigated with touch gestures and the buttons.

According to Samsung, an 8-minute quick charge adds about 8 hours of use; charging is WPC-based wireless.

Activation requires connecting to an Android phone with Google Mobile Services; it cannot be used with an iPhone.

ECG and blood pressure work through the Samsung Health Monitor app only in markets where they are approved; blood pressure needs calibration with a cuff every four weeks. Body composition should not be used by people with implanted devices such as pacemakers or during pregnancy.

Electrical Heart Signal enables ECG and Bioelectrical Impedance enables body composition estimates; ECG works through the Samsung Health Monitor app only in approved markets.

The LTE model can make calls and use data without the phone nearby; support depends on the carrier.

5ATM means water resistance to 50 metres for up to 10 minutes; the watch is not suitable for diving or high-pressure water. IP68 covers 1.5 metres of fresh water for 30 minutes.

5ATM covers surface water use such as swimming, not diving or high-pressure water. MIL-STD-810H is the US military standard for environmental test methods.

Some features, such as the camera controller and health measurements, need a Galaxy phone.

Dimensions are measured without the health sensors and weight without the strap.

The D-buckle band folds open; because the watch cannot lie flat, it is charged on its side on the Samsung charger.

Samsung says real battery life varies with network environment and usage patterns. 590 mAh is about 44% larger than the 410 mAh battery in the 44 mm Galaxy Watch5.