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Apple Watch SE 3 (GPS) 40mm Aluminum Case with Navy Blue Sport Band - S/M - Midnight - (2026)

Model: MJKY4LW/A
SKU: 6572720
Sold byBest Buy

About this product

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

Features

  • GET ESSENTIAL HEALTH INSIGHTS—Apple Watch SE 3 is an advanced health tracker. Temperature sensing⁵ enables insights in the Vitals app ¹ and Cycle Tracking app.² You can also track your sleep score, get sleep apnea notifications,⁶ 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 Buddy.⁷

  • 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 contacts.⁸

  • GREAT BATTERY LIFE AND FAST CHARGING—Enjoy a smartwatch with all-day, 18-hour battery life from sunup to sundown.⁴ Then charge up to twice as fast as SE 2 and get up to 8 hours of battery in just 15 minutes.⁹

  • 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. Usage limits may apply.

  • 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.¹⁰ 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 colors, styles, and materials.

Specifications

  • Screen Size
    40 millimeters
    Operating System Compatibility
    Apple iOS
    Operating System
    watchOS
    Built-in Storage
    64 gigabytes
    Global Positioning
    Galileo, GLONASS, GPS
    Metrics Measured
    Duration of sleep stages, Duration of exercise, Resting heart rate, Steps taken
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Reviews

Rating 4.9 out of 5 stars with 14 reviews

5 star rating. 13 reviews4 star rating. 1 review
100% would recommend to a friend

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    Love this Apple watch!!

    I’ve been really happy with my Apple Watch SE 3 so far. It looks great, feels comfortable on my wrist, and the screen is really nice and easy to read. I like how simple it is to use while still having all the features I actually need. The Midnight color looks clean with pretty much anything, and the battery has been solid for my everyday use. Definitely happy with the purchase and would recommend it.

    Posted by JOSEA

  • Rated 5 out of 5 stars

    Apple Quality, Great Best Buy Experience

    The watch was as expected. The customer service is the key. The priduct is Apple quality, good size for a small women's wrist. But being able to go to Best Buy instead of thr crazy busy Apple store is the real value. Bought it and was out the door in 30 minutes - and with my Tech Package!

    Posted by MickeyK

  • Rated 5 out of 5 stars

    Apple SE watch

    Easy to buy from best buy as pricing was the best. Best buy geek squad coverage is a no brainer So far, I love the watch so easy to pair and use. need a different band as there is no size that fits correctly too tight or too loose

    Posted by BERNADETTE

  • Rated 5 out of 5 stars

    Great overall fit for daily use

    I downsized from a 44mm watch to a 40mm and I am glad. This SE series works just like my previous watch and I enjoy it a bunch. Great for tracking my workouts.

    Posted by JACKV

  • Rated 5 out of 5 stars

    Apple watch

    Keeps a good charge and it does what I need, it’s an upgrade from my Apple Watch Series 8

    Posted by Krogers

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