Full Specifications
launch
monthSeptember
year2021
statusAvailable
dimensions
size45 × 38 × 10.7 mm
weight45.1
build
protectionIP6X dust-resistant certification; Water resistance to 50m (WR50)
materialsGlass front, Aluminum frame
features
typeSmartwatch
compatibilityiPhone with iOS compatible for watchOS 8 (launch) and later
detailsAlways-On Retina LTPO OLED display with ~1000 nits peak brightness.
Larger display area (nearly 20% more than Series 6) and thinner borders.
Blood Oxygen sensor, ECG sensor (electrical heart sensor), third-gen optical heart rate sensor.
Durable front crystal (over 50% thicker at tallest point than Series 6) for improved crack resistance.
Faster charging architecture (~33% faster than Series 6) with USB-C fast-charger cable.
materials
colors
connectivity
bluetooth5.x
codecsSBC, AAC
wired_connectorNone
app_support
battery
capacity309 mAh
lifeUp to 18 hours
chargingMagnetic wireless charging, USB-C fast-charging cable included (for faster charge)
audio
driversBuilt-in speaker + microphone for calls and Siri
technologiesStandard Apple Watch speaker & mic support
protection
ip_ratingIP6X dust resistance (repeat)
water_resistance50 m (5ATM) under ISO 22810:2010 standard for water resistance.
tracking
uwbYes
bleYes (BLE 5.x)
beeperHaptic feedback + speaker alerts
replaceable_batteryNo
controls
indicators
ledsStandard internal status/charging indicators via UI
platform_features
ports
descriptionNone
standards
warranty
term1 year limited
sustainability
materialsUses premium materials (titanium for Edition) and Apple continues efforts in recycled materials and environmentally-aware manufacturing.