Key features

Battery Standby Time	18 Hours
Display	Always-On Retina LTPO OLED display
Display resolution	484 x 396 pixels

Other features

Advanced Health Features
Cellular Connectivity
A Powerful Fitness Partner
Innovative Safety Features
Simply Compatible
Easily Customizable
Incredible Durability
Stay Connected
AppleCare

Apple Watch Series 9 helps you stay connected, active, healthy, and safe. Featuring double tap, a magical way to interact with Apple Watch¹, an even-brighter display, faster on-device Siri, and Precision Finding for iPhone².

Need help with choosing which Apple Watch is right for you Apple Watch comparison chart to help you decide based on the features and options of each smartwatch side-by-side.

Apple Watch Series 9 45mm Quick Facts

When will the Apple Watch Series 9 45mm be released? The Apple Watch Series 9 45mm was released on September 15th, 2023.

¹Available late 2023. Requires Apple Watch Series 9 or Apple Watch Ultra 2

Additional specs

Battery Description	Built-in rechargeable lithium-ion battery
Ports	USB-C
Connectivity	Wi-Fi 802.11n, LTE, UMTS, Bluetooth 5.3, USB
Processor	S9 SiP with 64-bit dual-core processor
Operating System	watchOS
Maximum Expandable Memory	0 GB
Wireless Network Technology Generations	3G, 4G LTE
Supported Email Platforms	Apple Mail, POP3, IMAP4, SMTP, Microsoft® Exchange, AOL®, AIM, Yahoo!® Mail, GMail
Frequency	GSM: 850 MHz, 900 MHz, 1800 MHz, 1900 MHz; UMTS: Band I (2100), Band II (1900), Band IV (1700/2100), Band V (850); LTE: 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66
Weight	1.37 Ounces
Length	0.42
Height	1.77
Width	1.49