Apple Watch Series 3

Apple Watch Series 3 – Specification

Build & Design

• Models: GPS only and GPS + LTE variants

• Case Sizes: 38 mm and 42 mm (display sizes vary)

• Case Materials: Aluminum, Stainless Steel, Ceramic (varies by edition)

• Bands: Interchangeable (Sport Band, Sport Loop, Milanese Loop, Hermès options)

• Water Resistance: Up to 50 meters (ISO standard 22810:2010)

Display

• Type: Retina OLED display with Force Touch

• Resolution: ~272 × 340 (38 mm) / ~312 × 390 (42 mm)

Performance & Hardware

• Processor: Apple S3 dual-core chip

• Wireless Chip: Apple W2 for Bluetooth/Wi-Fi efficiency

• Storage: ~8-16 GB (varies by model)

• Sensors: Optical heart rate, accelerometer, gyroscope, barometric altimeter, ambient light sensor

Connectivity

• GPS + GLONASS / Galileo / QZSS

• Bluetooth: v4.2

• Wi-Fi: 802.11b/g/n

• Cellular: LTE/UMTS (on GPS + Cellular models with eSIM)

• NFC: Apple Pay support

Battery & Power

• Battery Life: Up to ~18 hours (typical mixed use)

• Charging: Magnetic charging cable (included with the brand device)

Health & Fitness

• Heart Rate Monitoring: Continuous and workout tracking

• Activity Tracking: Move, Exercise & Stand rings with workout detection

• Swim Tracking: Yes (50 m water resistance)

Software

• Operating System: watchOS (initially watchOS 4, upgradable to later supported versions)

• Features: Siri, notifications, apps, customizable faces

Key Highlights

• Independent connectivity (cellular) for calls, messages, and streaming without iPhone (optional model)

• Comprehensive fitness tracking with heart rate monitoring and GPS tracking

• Water resistance to 50 m, suitable for swimming workouts

• All-day battery life (~18 hours) for everyday use

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