Our Take
The Apple Watch Series 9 45mm is Apple's current mainstream smartwatch, sitting one tier below the Ultra 2. It's aimed at iPhone users who want thorough fitness tracking, health monitoring, and seamless iOS integration in a larger-faced case. It competes directly with Garmin's mid-range and Samsung's Galaxy Watch at a notably higher price point.
Key Features
S9 SiP dual-core chip enables on-device Siri processing without sending data to the cloud
Double tap gesture lets you control the watch by pinching thumb and index finger together twice
Always-on Retina display reaches up to 2,000 nits brightness, genuinely readable in direct sunlight
Blood oxygen (SpO2) sensor and ECG app built in, though ECG requires GP-level setup to enable in UK
Crash Detection and Fall Detection included as standard safety features
GPS, GLONASS, Galileo, and BeiDou multi-band satellite tracking for accurate outdoor routes
Our Verdict
Buy it if you're an iPhone user who wants the slickest smartwatch experience available and values Apple ecosystem integration above all else. Look elsewhere — towards Garmin's Forerunner or Fenix range — if battery life or deep sport-specific metrics matter more to you than software polish.