Apple Watch SE 3 40MM Starlight Aluminium Case with Starlight Sport Band

Walk it. Talk it. Track it. Love it.

Apple Watch SE 3 is packed with health, fitness, connectivity and safety essentials all at a great price. Track your sleep score. Get richer health insights in the Vitals app.

Stay active with a wide range of workouts. Save time with fast charging. See your info at a glance with the Always-On display. And still get all-day, 18-hour battery life.

Features

Health essentials

Temperature sensing enables richer insights in the Vitals app and retrospective ovulation estimates. You’ll also get a daily sleep score, sleep apnoea notifications, and

be alerted if you have a high or low heart rate or an irregular rhythm.

Great battery life

Enjoy all-day, 18-hour battery life. Then charge up to twice as fast as SE 2 and get up to 8 hours of battery in ust 15 minutes.

Always-on display

Now you can read the time and see the watch face without raising your wrist to wake the display.

A great fitness partner

Apple Watch SE 3 gives you a healthy number of ways to track your workouts. With real-time metrics and Workout Buddy powered by Apple Intelligence from your

nearby iPhone, you’ll hit your goals like never before.

Safety features

SE 3 can detect a hard fall or serious car crash, automatically help connect you with emergency services and notify your emergency contacts. Check In can

automatically notify a loved one when you’ve arrived at your destination.

Your watch, your way

Express yourself with dozens of easily customisable faces and a wide range of straps in different colours, styles and materials.

Stay connected

Send a text, take a call, listen to music and podcasts, use Siri and get notifications. Apple Watch SE 3 (GPS) works with your iPhone or Wi-Fi to keep you connected.

Technical specifications

Go to apple.com/uk/watch/compare for complete set.

Note:

Apple Watch SE 3 requires iPhone 11 or later with iOS 26 or later.
¹ The Vitals app is for wellness purposes only and not for medical use.
² Fast charging is compatible with Apple Watch Series 7 and later, any Apple Watch Ultra model and Apple Watch SE 3.
³ Battery life varies by use and configuration. See apple.com/uk/watch/battery for more information.
⁴ The temperature sensing feature is not intended for medical use. Temperature sensing is available only on Apple Watch Series 8 and later, and all Apple Watch Ultra models.
⁵ Sleep apnoea notifications are available on Apple Watch Series 9 and later, Apple Watch Ultra 2 and later, and Apple Watch SE 3. The feature is intended to detect signs of moderate to severe sleep apnoea for people 18 years old or older without a diagnosis of sleep apnoea.
⁶ Irregular rhythm notification requires the latest versions of watchOS and iOS. It is not intended for use by people under 22 years old or those who have been previously diagnosed with atrial fibrillation (AF).
⁷ Testing conducted by Apple in July and August 2025 using pre-production Apple Watch SE 3 (GPS + Cellular) and Apple Watch SE 2 (GPS + Cellular), each paired with an iPhone; all devices tested with pre-release software, Apple Watch Magnetic Fast Charger to USB-C Cable (Model A2515) and Apple 20W USB-C Power Adapter (Model A2305). Charge time varies with adapter, region, settings, initial battery levels, usage and environmental factors; actual results will vary.
⁸ Requires an Apple Intelligence–enabled iPhone nearby and Bluetooth headphones with device and Siri language set to English. Apple Intelligence is available in beta. Some features may not be available in all regions or languages. For feature and language availability and system requirements, see support.apple.com/en-gb/121115.
⁹ Emergency SOS requires a cellular connection or Wi-Fi calling with an internet connection from your Apple Watch or nearby iPhone. You can use cellular models of Apple Watch to make an emergency call in many locations, provided that mobile service is available. Some mobile networks may not accept an emergency call from your Apple Watch if your Apple Watch isn’t activated, if isn’t compatible with or configured to operate on a particular mobile network, if it isn’t set up for mobile service, or if the mobile network does not support emergency calling over IMS. See support.apple.com/108374 and apple.com/watch/cellular for more information.
¹⁰ Wireless service plan required for cellular service. Contact your service provider for more details. Connection may vary based on network availability. Check apple.com/uk/watch/cellular for participating network providers and eligibility. See support.apple.com/HT207578 for additional setup instructions.