Key specs for the Apple Watch Series 10 (46mm)
Feature
Specification Source
Case Size 46mm (replaces the older 45mm size)
Dimensions 46mm (H) x 39mm (W) x 9.7mm (D)
Weight 36.4g (Aluminum, GPS)
Design The thinnest Apple Watch yet, featuring a refined design with a metal back that integrates the antenna.
Display An always-on Retina LTPO3 display with 416 x 496 pixels. It features a new wide-angle OLED technology that is up to 40% brighter when viewed from an angle.
Processor Apple S10 SiP with a dual-core processor and a 4-core Neural Engine.
Connectivity GPS-only and GPS + Cellular models are available. Supports Bluetooth 5.3 and Wi-Fi 4.
Battery and Charging Up to 18 hours of battery life with normal use, or up to 36 hours in Low Power Mode. Faster charging allows for a charge to 80% in about 30 minutes.
Health and Fitness Adds sleep apnea notifications by tracking “breathing disturbances” during the night. Also features a depth gauge and water temperature sensor for water activities. Includes ECG, heart rate monitoring, temperature sensing, and a Vitals app.
Other Features Can now play audio through the built-in speaker and includes a Voice Isolation feature for clearer phone calls.
Band Compatibility Older 42mm, 44mm, and 45mm bands are compatible with the new 46mm case.
Noteworthy upgrades from the Series 9

Larger and brighter display: The 46mm model has a 9% larger screen area than the 45mm Series 9.
Thinner and lighter build: It’s approximately 10% thinner and lighter than the Series 9 models.
New material options: The stainless steel option from previous generations was replaced with lighter, polished titanium cases for the Series 10