Apple Watch SE 3 (44 mm, GPS) / Samsung Galaxy Watch5 Pro 45 mm

A 40 mm version also exists with different size, display and battery values.

Because the LTPO panel can lower its refresh rate, the display keeps showing the time and notifications with the wrist down; this is the first SE with Always-On.

Sapphire crystal resists scratches better than mineral and aluminosilicate glass; the raised bezel around the screen protects the glass from knocks.

Apple claims 4x better crack resistance than the SE 2.

The S10 enables the Always-On display, double tap and wrist flick gestures, on-device Siri and fast charging.

There is no ECG or blood oxygen sensor. The temperature sensor is not intended for medical use.

Bioelectrical impedance analysis estimates values such as body fat and skeletal muscle; results are not for medical diagnosis.

Feature availability varies by country.

Wrist flick dismisses notifications and calls, silences alarms and returns to the watch face with one hand.

This is single-frequency (L1) GPS; position can drift under trees and between tall buildings.

In Apple's test the watch stays connected to an iPhone over Bluetooth throughout; results vary with use and settings.

Times are with the included Apple Watch Magnetic Fast Charger to USB-C Cable; no adapter is included.

The D-Buckle band uses a folding clasp so the strap sits at the same point every time, in place of a standard pin buckle.

Samsung says the battery is 60% larger than the Galaxy Watch4’s.

Wear OS 3 and later do not work with iPhone. Blood pressure and ECG work only in markets supported by Samsung Health Monitor and with Galaxy phones.

Track Back follows the recorded path in reverse to help you return to the start.

5ATM covers surface water activities such as swimming, not diving or high-pressure water. MIL-STD-810H is a set of military test methods, not a guarantee of impact resistance.