Apple Watch Series 9 (45 mm, GPS, aluminium) / Samsung Galaxy Watch5 (40 mm, Bluetooth)

Apple Watch Series 9 (45 mm, GPS, aluminium): 45 mm aluminium case, GPS model; Pink, Midnight, Starlight, Silver and (PRODUCT)RED. The 41 mm, GPS + Cellular and stainless steel (sapphire crystal) versions differ in size and materials.

Samsung Galaxy Watch5 (40 mm, Bluetooth): The 40 mm aluminium Bluetooth version of the Galaxy Watch5, in Graphite, Pink Gold and Silver. The 44 mm version has a larger screen and battery; the titanium Galaxy Watch5 Pro is a separate model.

Specification	Apple Watch Series 9 (45 mm, GPS, aluminium)	Samsung Galaxy Watch5 (40 mm, Bluetooth)
Release year	2023	2022
Display	Always-On Retina LTPO OLED; up to 2000 nits, as low as 1 nit; 326 ppi LTPO is a panel technology that can lower the refresh rate dramatically, letting the display stay dimly on when the wrist is down. The 1-nit minimum avoids glare in a dark room. Apple	1.2-inch (30.4 mm) Super AMOLED, 396 × 396 pixels; full-colour Always On Display; sapphire crystal Sapphire crystal is a glass material that strongly resists scratching. The 44 mm version has a 1.4-inch, 450 × 450 screen. Samsung
Chip	S9 SiP; 64-bit dual-core processor, 4-core Neural Engine Apple	—
Storage	64 GB Apple	—
Controls	Digital Crown with haptic feedback, side button, double tap gesture Double tap lets you answer notifications or calls by tapping the thumb and index finger of the watch hand together twice, without touching the screen. Apple	—
Health sensors	Electrical heart sensor, third-generation optical heart sensor, temperature sensing The electrical sensor is for ECG recordings; the optical sensor measures pulse with light. Temperature sensing tracks overnight changes in wrist temperature. Apple	—
Blood Oxygen (US)	On watches sold in the US without the feature, a redesigned version arrives with iOS 18.6.1 and watchOS 11.6.1; the reading is calculated on iPhone The watch collects sensor data, the paired iPhone calculates the value and shows it in the Health app. Watches bought outside the US are not affected. Apple	—
Other sensors	Compass, always-on altimeter, high-g accelerometer, high dynamic range gyroscope, ambient light sensor Apple	—
Location	L1 GPS, GNSS, Galileo and BeiDou It is a single-frequency (L1) receiver; drift in cities can be more likely than with dual-frequency watches. Apple	—
Wireless	Wi-Fi 4 (802.11n), Bluetooth 5.3, second-generation Ultra Wideband Ultra Wideband lets you locate an iPhone 15-family phone with Precision Finding showing direction and distance; availability varies by region. Apple	—
Battery and charging	Up to 18 hours normal use, up to 36 hours in Low Power Mode; fast charge to about 80% in 45 minutes Fast charging requires Apple’s fast-charging cable and a suitable adapter. Apple	284 mAh (typical); faster WPC-based wireless charging WPC is the body behind the Qi wireless charging standard. The 44 mm version has a 410 mAh battery. Samsung
Durability	50 m water resistant (ISO 22810:2010); IP6X dust resistant; Ion-X front glass Suitable for swimming. Ion-X is the strengthened glass used on aluminium cases; steel cases use sapphire crystal. Apple	5ATM + IP68; MIL-STD-810H 5ATM suits shallow-water activities such as swimming, not diving. Samsung
Size and weight	45 × 38 × 10.7 mm; 38.7 g; fits 140–245 mm wrists Apple	39.3 × 40.4 × 9.8 mm; 28.7 g (without strap) Samsung
Compatibility	iPhone XS or later with iOS 17 or later It cannot be used with Android phones. Apple	—
Case and colours	—	Armor Aluminum case with Sport Band; Graphite, Pink Gold, Silver Samsung
Processor	—	Exynos W920, dual-core 1.18 GHz Samsung
Memory and storage	—	1.5 GB RAM; 16 GB internal storage Samsung
Software	—	At launch Wear OS Powered by Samsung (Wear OS 3.5) with One UI Watch 4.5 The watch works with phones running Android 8.0 or later with more than 1.5 GB of RAM; it cannot be used with an iPhone. Samsung
Sensors	—	Samsung BioActive Sensor (optical heart rate, electrical heart signal, bioelectrical impedance analysis); temperature sensor; accelerometer, barometer, gyro, geomagnetic and light sensors The electrical heart signal is used for ECG and bioelectrical impedance for body composition estimates; availability of these features varies by country. Samsung
Connectivity	—	Bluetooth 5.2; Wi‑Fi 802.11 a/b/g/n 2.4 + 5 GHz; NFC; GPS/GLONASS/BeiDou/Galileo This version has no LTE; the LTE version is sold separately. Samsung