Apple Watch Series 9 GPS + Cellular 45mm Starlight Aluminium with Starlight Sport Band

Overview

Stay connected, active and informed throughout your day with the Apple Watch Series 9 GPS + Cellular 45mm, finished in elegant Starlight Aluminium with a matching Starlight Sport Band.

Powered by Apple's S9 SiP with a 64-bit dual-core processor and 4-core Neural Engine, Series 9 delivers fast everyday performance, responsive apps, on-device Siri processing and Apple's convenient Double Tap gesture.

The large 45mm Always-On Retina LTPO OLED display offers a sharp 396 × 484 resolution, 1,143mm² display area and up to 2,000 nits brightness, while dimming as low as 1 nit for comfortable viewing in darker surroundings.

Because this is the GPS + Cellular version, you can use supported calls, messages, music and connected features away from your iPhone when the watch is activated with a compatible mobile network and service plan.

Advanced health and fitness capabilities include heart-rate monitoring, ECG support, temperature sensing, sleep tracking, cycle tracking, detailed workout metrics and a broad range of safety features. Availability of individual health functions can vary by region, software version and user eligibility.

Key Features & Benefits

• Stay Connected Without Keeping Your iPhone Beside You – GPS + Cellular
  Built-in LTE and UMTS connectivity lets supported cellular features operate away from your paired iPhone when the watch is activated with a compatible carrier plan.
• Bright, Easy-to-Read Screen – Up to 2,000 Nits
  The Always-On Retina display reaches up to 2,000 nits, making workout statistics, notifications and watch faces easier to read outdoors.
• See More at a Glance – Large 45mm Display
  The 45mm model provides a 396 × 484-pixel display with 1,143mm² of viewing area, giving complications, messages and workout information plenty of room.
• Always-On Convenience – LTPO OLED Display
  The display remains visible without needing to raise your wrist fully, while LTPO technology helps manage power efficiently.
• Fast Everyday Performance – Apple S9 SiP
  Apple's S9 chip with 64-bit dual-core processor provides responsive navigation, fast application performance and efficient processing for everyday smartwatch features.
• Dedicated Machine-Learning Power – 4-Core Neural Engine
  The integrated Neural Engine supports intelligent features and on-device processing while keeping supported tasks responsive.
• Control Your Watch with One Hand – Double Tap
  Double Tap lets you perform supported actions by tapping your index finger and thumb together twice, useful when your other hand is occupied.
• Faster Siri Requests – On-Device Processing
  Series 9 supports on-device Siri processing for supported requests, helping improve responsiveness and enabling compatible health-data queries.
• Plenty of Space for Apps & Content – 64GB Storage
  Built-in 64GB capacity provides room for watchOS, apps and supported locally stored content.
• Track Your Heart Throughout the Day – Third-Generation Optical Sensor
  The third-generation optical heart sensor supports continuous heart-rate monitoring during compatible everyday activities and workouts.
• ECG Support – Electrical Heart Sensor
  The built-in electrical heart sensor supports the ECG app for eligible users in supported regions, allowing a single-lead-style ECG recording from the wrist.
• Monitor Heart-Rate Trends
  Supported features include high and low heart-rate notifications and irregular rhythm notifications, providing additional insight into heart activity.
• Track Overnight Temperature Trends – Temperature Sensing
  Wrist temperature sensing contributes to supported wellness, sleep and cycle-tracking functionality.
• Understand Your Sleep – Sleep Tracking
  Compatible watchOS versions can track sleep duration and stages, helping you review sleeping patterns directly through Apple's Health ecosystem.
• Advanced Health Features with Current Software
  Apple currently lists Series 9 as supporting features including sleep apnoea notifications, Sleep Score, Vitals and hypertension notifications for eligible users where available. These features can depend on software version, country and regulatory availability.
• Track Outdoor Workouts Accurately – Built-In GPS
  Integrated L1 GPS, GNSS, Galileo and BeiDou support route, distance and pace tracking during compatible outdoor activities.
• Advanced Running Metrics
  Apple Watch supports workout features such as Heart Rate Zones, stride length, ground contact time, vertical oscillation, Race Route and custom interval workouts.
• Useful for Cycling & Fitness
  Supported cycling metrics include cadence, power zones and connection to compatible Bluetooth cycling accessories.
• Ready for Swimming – Water Resistant to 50m
  Apple rates Series 9 as water resistant to 50 metres, making it suitable for supported pool and open-water swimming activities.
• Protection Against Dust – IP6X
  Certified IP6X dust resistance helps protect the watch during workouts and everyday outdoor use.
• Help When Something Goes Wrong – Fall Detection
  Apple Watch can detect certain hard falls and provide access to emergency assistance.
• Crash Detection
  Built-in motion sensors can recognise certain severe car crashes and initiate supported emergency features.
• Emergency SOS & International Emergency Calling
  The cellular model supports emergency connectivity features designed to help you contact emergency services when needed.
• Find Compatible iPhones More Precisely – Second-Generation Ultra Wideband
  Series 9 incorporates Apple's second-generation Ultra Wideband chip, enabling supported Precision Finding functionality with compatible iPhone models.
• All-Day Battery – Up to 18 Hours
  Apple rates Series 9 for up to 18 hours of normal use on a full charge.
• Extend Runtime – Up to 36 Hours in Low Power Mode
  Low Power Mode can increase rated battery life to approximately 36 hours, useful during longer days and travel.
• Quick Top-Ups – Fast Charging
  Series 9 can reach approximately 80% charge in around 45 minutes using compatible fast-charging equipment.
• Comfortable Everyday Strap – Starlight Sport Band
  Apple's Sport Band uses soft, durable high-performance fluoroelastomer and a clean pin-and-tuck closure, making it suitable for everyday wear and exercise.

Why Choose This Product

The Apple Watch Series 9 GPS + Cellular 45mm provides an excellent combination of connectivity, fitness tracking and everyday convenience.

Its cellular capability is one of the biggest advantages. With a compatible mobile plan, supported functions can remain connected even when your iPhone isn't immediately beside you, making the watch particularly useful for running, walking, commuting or quick trips where carrying your phone is inconvenient.

The 45mm display is also ideal for users who prefer a larger viewing area. With its 396 × 484 resolution and 2,000-nit peak brightness, messages, workout statistics and apps remain clear and spacious.

Its health platform remains highly capable, combining optical and electrical heart sensors, temperature sensing, sleep monitoring and detailed workout tracking with important safety technologies such as Fall Detection and Crash Detection.

Finished in Starlight Aluminium with a matching Starlight Sport Band, this configuration has a soft neutral appearance that works equally well for workouts, work and everyday wear.

Specifications