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Overview

Apple Watch SE 3 is packed with health, fitness, connectivity and safety essentials—all for a great value. Get advanced health tracking, including sleep score1 and advanced cycle tracking.2 Meet Siri AI,3 your wearable AI assistant. Track your daily Move, Exercise and Stand goals with Activity rings. And enjoy all-day, 18-hour battery life.

Apple Watch SE 3 (GPS + Cellular) 40mm Starlight Aluminum Case with Sand Sport Band - Medium/Large

Brand: Apple
Model: MJLE4AM/A
Web Code: 20154581
Sold and shipped by Best Buy

Connectivity: LTE + GPS

LTE + GPS

Case Diameter (mm): 40 mm

40 mm $399.99

Band Size: Medium / Large

Medium / Large

Not available for deliverySold out online

Release Date: January 1, 2029

Not available for pickup

Not available for pickup

Sorry, at this time, this product cannot be picked up in-store.

Return Policy

30 days to return or exchange

Read return policy

Manufacturer's Warranty

Check with the manufacturer for details or add Best Buy Protection for extra coverage.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

  • Get essential health insights—Apple Watch SE 3 is an advanced health tracker. Temperature sensing (not intended for medical use) enables insights in the Vitals app1 and Cycle Tracking app.2 You can also track your sleep score, get sleep apnea notifications4 and more
  • A great fitness tracker—SE 3 can track your workouts in a variety of ways—from running and strength training to achieving your 10K steps a day. Hit your goals with real-time metrics and Workout Buddy5
  • Keep help close at hand—A smartwatch that puts your safety first. SE 3 can detect a hard fall or severe car crash, automatically help connect you with emergency services and notify your emergency contacts6
  • Great battery life and fast charging—Enjoy a smartwatch with all-day, 18-hour battery life from sunup to sundown. Then charge up to twice as fast as SE 2 and get up to eight hours of battery in just 15 minutes
  • Meet Siri AI—Your AI assistant. More personal. More powerful. Got a question? Just ask Siri AI to help you find what you need. You can even get ideas for post-workout stretches, healthy recipes or wellness tips—right on your smartwatch.3 Siri AI is rolling out in English. French language support coming late 2026. Usage limits may apply
  • The freedom of cellular—With just your smartwatch, you can take and make calls, stream music and podcasts, and listen with your AirPods—even without your iPhone (wireless service plan required for cellular service)
  • Stay connected—SE 3 (GPS) works with your iPhone or Wi-Fi to keep you connected. Use your smartwatch to send a text, take a call, listen to music and podcasts, use Siri and get notifications
  • Apple Watch for your kids—Set up Apple Watch For Your Kids, even if they don’t have their own iPhone. Parents get peace of mind knowing their kids can call, text and share their location
  • Your smartwatch, your way—Express yourself with dozens of easily customizable faces and a wide range of bands in different colours, styles and materials

Apple Watch SE 3 requires iPhone 11 or later with iOS 27 or later.

1 The Vitals app is for wellness purposes only and not for medical use.

2 The Cycle Tracking app should not be used for birth control or to diagnose a health condition. Cycle deviation notifications inclusive of perimenopause are for people 40 years old or older.

3 Apple Intelligence is available with Siri and device language set to Chinese (Simplified), Chinese (Traditional), Danish, Dutch, English, French, German, Italian, Japanese, Korean, Norwegian, Portuguese, Spanish, Swedish, Turkish or Vietnamese. Some features may not be available in all regions or languages. Some devices may not be available in all regions. Siri AI is available in beta in watchOS 27 and requires an Apple Intelligence–enabled device set to a supported language. Available in English to start. French language support coming late 2026. Certain Apple Intelligence features that rely on server-side models are subject to daily usage limits, including but not limited to Siri AI. Daily limits may vary by feature, request complexity, system demand, system policies and other factors. Expanded access to such features will be available for a fee in the future.

4 The feature is intended to detect signs of moderate to severe sleep apnea for people 18 or older without a diagnosis of sleep apnea.

5 Requires a paired Apple Intelligence–enabled iPhone and Bluetooth headphones with device and Siri language set to English or Spanish. To use Workout Buddy without your iPhone nearby, you must have a Wi-Fi or cellular connection.

6 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 cellular service is available. Some cellular networks may not accept an emergency call from your Apple Watch if your Apple Watch isn’t activated, if it isn’t compatible with or configured to operate on a particular cellular network, if it isn’t set up for cellular service or if the cellular network does not support emergency calling over IMS.

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.