Key Specifications of the Apple Watch Series 9:

• Display: Always-On Retina LTPO OLED, up to 2000 nits (peak) brightness
• Resolution: 484 x 396 pixels (~326 ppi density)
• Processor: Apple S9 SiP with 64-bit dual-core processor
• CPU: Dual-core
• GPU: PowerVR
• Internal Storage: 64GB
• Operating System: watchOS 10, upgradable to the latest watchOS versions
• Battery: Li-Ion 308 mAh (non-removable), Up to 18 hours (36 hours in Low Power Mode)
• Charging: Wireless fast charging (0-80% in about 45 minutes)
• Network: GSM / HSPA / LTE (on cellular models)
• SIM: eSIM
• Dimensions: 45 x 38 x 10.7 mm (45mm) or 41 x 35 x 10.7 mm (41mm)
• Weight: 31.9g-51.5g (depending on size and material)
• Colors: Midnight, Starlight, Silver, Pink, Red (Aluminum); Graphite, Silver, Gold (Stainless Steel)
• Security: Passcode
• Connectivity: Wi-Fi 802.11 b/g/n, Bluetooth 5.3, GPS, NFC, Ultra Wideband 2 (UWB)
• Sensors: Accelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max, temperature (body)
• Durability: IP6X certified dust resistant, 50m water resistant (swimproof)
• Protection: Ion-X front glass (aluminum cases), Sapphire front crystal (stainless steel cases)