Apple Watch SE 3

Always-On Retina display

Brings Always-On screen capability to the SE tier for the first time, allowing glanceable time and notifications without waking the display.

Fast charging architecture

First SE model with fast charging, charging up to 2x faster than SE 2 (charges to 80 percent in approximately 45 minutes; 15 minutes adds 8 hours of battery life).

5G cellular modem

Integrates high-speed 5G cellular connectivity for faster data transfers and enhanced cellular power efficiency.

S10 SiP with 4-core Neural Engine

Upgrades directly from the S8 SiP (used in SE 2) to the S10, enabling on-device Siri with Health data access, double tap and wrist flick gestures, and Voice Isolation for phone calls.

Wrist temperature sensing

Integrates dual-temperature sensors for retrospective ovulation estimates and richer overnight baseline data in the Vitals app.

Direct media playback through speaker

Enables playing podcasts, music, and audiobooks directly through the watch's built-in speaker.

Sleep apnea notifications

Leverages accelerometer data to track nightly Breathing Disturbances and alert users to consistent signs of moderate to severe sleep apnea.

4x crack-resistant Ion-X glass

(minor): Custom proprietary formulation offering 4x greater resistance to cracks compared to SE 2.

Silicon platform jump

Two-generation architectural jump from S8 SiP directly to S10 SiP with hardware neural processing.

Case color finishes

(minor): Available in 40mm and 44mm aluminum cases in Midnight and Starlight finishes.

40mm and 44mm case form factors

Retains the compact 40mm and 44mm aluminum case dimensions established by earlier SE generations.

$249 starting price point

Preserves the accessible $249 (US) entry price.

Tier differentiation omissions

Deliberately omits electrical heart sensors (no ECG app), blood oxygen sensor, water depth gauge, and hypertension notifications, maintaining distinct tiering below Series 11.