Apple Watch SE

44mm or 40mm case size

aluminum metal

speaker

microphone

control:

Touch-responsive digital crown

side button

Siri

monitor:

Retina LTPO OLED display

Ion-X glass surface

Up to 1000 nits maximum brightness

chip:

S8 SiP features a 64-bit dual-core processor

2 Core Apple Neural Engine

32GB capacity

sensor:

Second generation optical heart rate sensor

High or low heart rate notification Footnote 4

Arrhythmia Notice Footnote 5

sleep stages

The compass app has waypoint and backtracking functions

Changqi altimeter

High g-force acceleration sensor

High dynamic range gyroscope

ambient light sensor

water proof:

Water resistant to 50 meters (suitable for swimming) Footnote 10

Connections and communications:

L1 GPS, GLONASS, Galileo and QZSS positioning systems

LTE and UMTS Footnote 13

Wi-Fi 4 (802.11n)

Bluetooth 5.3

Apple Pay

GymKit

Power and battery life:

Built-in rechargeable lithium-ion battery

Typical use up to 18 hours Footnote 15

USB-C magnetic charging cable