Apple Watch 9 series [GPS] SMART WATCH 45mm

DISPLAY
Type	1.9″ Retina LTPO OLED, Always‑On Display, up to ~2000 nits brightness
Resolution	484 × 396 px (~326 ppi)
BODY & BUILD
Material	Aluminum (Midnight, Silver, Starlight, Pink, (PRODUCT)RED), Ion‑X glass front
Dimensions	45 × 38 × 10.7 mm
Weight	≈ 38.7 g (GPS‑only aluminum) turn0search2turn0search4
Resistance	Water‑resistant 50 m; dust-resistant IP6X turn0search2turn0search4
PLATFORM
Chipset	Apple S9 SiP, dual-core with 4‑core Neural Engine turn0search2turn0news17
OS / Updates	watchOS 10 → upgradeable to watchOS 11
Storage	64 GB internal (no microSD) turn0search2turn0search10
SENSORS & HEALTH
Features	ECG, SpO₂, temperature sensing (±0.01 °C), compass, altimeter, VO₂max, sleep tracking, cycle tracking turn0search2turn0news15
Safety	Fall Detection, Crash Detection, Emergency SOS
CONNECTIVITY
Wireless	Wi‑Fi 802.11n, Bluetooth 5.3, NFC (Apple Pay), L1 GPS/GNSS, UWB 2 turn0search2turn0search4
BATTERY & CHARGING
Battery	308 mAh Li‑Ion
Usage	≈ 18 hours typical; up to 36 hours in Low Power Mode turn0search2turn0search0
Charging	Wireless fast‑charge (up to 80% in ~45 min) turn0search2turn0search0