Apple Watch SE 3 (GPS+Cellular) 40mm Aluminum Case with Starlight Sport Band - S/M - Starlight (AT&T) - (2025)
Model: MEP64LW/A
SKU: 6573056
$299/mo.99
for 36 months; 0% APR
Special OffersOn related products
Carrier
AT&TScreen Size
40mmBand Size
Small / MediumColor
StarlightAvailability
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Specifications
- Screen Size40 millimetersOperating System CompatibilityApple iOSOperating SystemwatchOSCarrierAT&TBuilt-in Storage64 gigabytesGlobal PositioningGPS, Galileo, QZSS
- Key Specs
- Screen Size: 40 millimeters (Size of the screen, measured diagonally from corner to corner.)
- Operating System Compatibility: Apple iOS
- Operating System: watchOS (The operating system manages all software and hardware, including files, memory and connected devices. Most importantly, it lets you interact with your device and your programs in a visual way; otherwise, you'd be typing computer code to get anything done.)
- Carrier: AT&T
- Built-in Storage: 64 gigabytes
- Global Positioning: GPS, Galileo, QZSS (A system of satellites which enables a mobile receiver to determine its precise location based on signals received from satellites such as the US Global Positioning System (GPS), the Russian Global Navigation Satellite System (GLONASS), the European Global Navigation Satellite System (Galileo), or the Japanese Quasi-Zenith Satellite System (QZSS).)
- Metrics Measured: Resting heart rate, Skin temperature, Altitude changes
- Protective Qualities: Water resistant
- Maximum Depth of Water Resistance: 164 feet (Measurement of the maximum depth of water in which the product is able to resist some degree of water penetration.)
- Series: SE (Part of a group of the same product type with similar features.)
- General
- Brand: Apple
- Model Number: MEP64LW/A
- Product Name: Apple Watch SE 3 (GPS+Cellular) 40mm Aluminum Case with Starlight Sport Band - S/M
- Color: Starlight
- Product Type: Smartwatch
- Form Factor: Wristwatch (The size, arrangement, and physical configuration of the product.)
- Model Family: Apple Watch SE 3
- Series: SE (Part of a group of the same product type with similar features.)
- Year of Release: 2025
- Design
- Band Type: Sport Band
- Band Color: Starlight
- Display
- Display Screen: true
- Screen Size: 40 millimeters (Size of the screen, measured diagonally from corner to corner.)
- Screen Resolution: 324 x 394 (Screens come in a range of resolutions (measured in pixels, horizontal x vertical). The higher the resolution, the greater the picture quality.)
- Display Type: OLED
- Color Display: true
- Backlit Display: true (Integrated lights allow for visibility of the display in low-light conditions.)
- Compatibility
- Operating System Compatibility: Apple iOS
- Operating System: watchOS (The operating system manages all software and hardware, including files, memory and connected devices. Most importantly, it lets you interact with your device and your programs in a visual way; otherwise, you'd be typing computer code to get anything done.)
- Connectivity
- Carrier: AT&T
- Network Connectivity: 4G LTE, 5G (The manner in which a device sends data to another device over a long distance using a cellular network.)
- Wireless Connectivity: Wi-Fi, Bluetooth (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
- Wireless Standard: N (The wireless networking protocol used by the device. Each iteration of the protocol is based on the 802.11 standard developed by the Institute of Electrical and Electronics Engineers (IEEE) Standards Association. Denoted by letters following 802.11 (802.11a, 802.11ac, etc.), each version, published in alphabetical order, encompasses all previous versions.)
- Features
- Built-in Storage: 64 gigabytes
- GPS Enabled: true
- Global Positioning: GPS, Galileo, QZSS (A system of satellites which enables a mobile receiver to determine its precise location based on signals received from satellites such as the US Global Positioning System (GPS), the Russian Global Navigation Satellite System (GLONASS), the European Global Navigation Satellite System (Galileo), or the Japanese Quasi-Zenith Satellite System (QZSS).)
- Activity
- Metrics Measured: Resting heart rate, Skin temperature, Altitude changes
- Performance
- Protective Qualities: Water resistant
- Maximum Depth of Water Resistance: 164 feet (Measurement of the maximum depth of water in which the product is able to resist some degree of water penetration.)
- Dimensions
- Product Height: 1.57 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
- Product Width: 1.33 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Product Weight: 0.93 ounces (The out of box weight of the item.)
- Product Length: 0.42 inches (The out of box length of the item. Length is measured as the longest dimension of the item.)
- Band Size: Small, Medium
- Power
- Rechargeable: true
- Charging Interface(s): USB-C (The connection for transmitting power to charge the device.)
- Battery Chemistry: Lithium-ion
- Material
- Case Material: Aluminum
- Warranty
- Warranty - Parts: Apple One (1) Year Limited Warranty
- Warranty - Labor: Apple One (1) Year Limited Warranty
- Other
- UPC: 400065730568
Apple Watch SE 3 is packed with health, fitness, connectivity, and safety essentials—all for a great value. 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.
Whats Included
- Case
- Band
- 1m Magnetic Charging Cable
- Case
- Band
- 1m Magnetic Charging Cable
Disclaimers
- ¹Apple Watch SE 3 requires iPhone 11 or later with iOS 26 or later.
- ²The Vitals app is for wellness purposes only and not for medical use.
- ³Fast charging is compatible with Apple Watch Series 7 and later, any Apple Watch Ultra model, and Apple Watch SE 3.
- ⁴Battery life varies by use and configuration. See apple.com/watch/battery for more information.
- ⁵The 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.
- ⁶Sleep apnea notifications are available on Apple Watch Series 9 and later, Ultra 2 and later, and SE 3. The feature is intended to detect signs of moderate to severe sleep apnea for people 18 years old or older without a diagnosis of sleep apnea.
- ⁷Irregular 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 (AFib).
- ⁸Testing conducted by Apple in July and August 2025 using preproduction Apple Watch SE 3 (GPS + Cellular) and Apple Watch SE 2 (GPS + Cellular), each paired with an iPhone; all devices tested with prerelease 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.
- ⁹Requires 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-us/121115.
- ¹⁰Emergency 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 isn’t set up for cellular service, or if the cellular network does not support emergency calling over IMS. See support.apple.com/108374 and apple.com/watch/cellular for more information.
- ¹¹Not all features will be available if the Apple Watch is set up through Apple Watch For Your Kids. Check support.apple.com/en-us/109036 for details. Wireless service plan required for cellular service. Check apple.com/watch/cellular for participating wireless carriers and eligibility.
- ¹²Wireless service plan required for cellular service. Contact your service provider for more details. Connection may vary based on network availability. Check apple.com/watch/cellular for participating wireless carriers and eligibility. See support.apple.com/HT207578 for additional setup instructions.
- ¹³Data plan required. 5G is available in select markets and through select carriers. Speeds vary based on site conditions and carrier. For details on 5G support, contact your carrier and see apple.com/watch/cellular.
- ¹Apple Watch SE 3 requires iPhone 11 or later with iOS 26 or later.
- ²The Vitals app is for wellness purposes only and not for medical use.
- ³Fast charging is compatible with Apple Watch Series 7 and later, any Apple Watch Ultra model, and Apple Watch SE 3.
- ⁴Battery life varies by use and configuration. See apple.com/watch/battery for more information.
- ⁵The 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.
- ⁶Sleep apnea notifications are available on Apple Watch Series 9 and later, Ultra 2 and later, and SE 3. The feature is intended to detect signs of moderate to severe sleep apnea for people 18 years old or older without a diagnosis of sleep apnea.
- ⁷Irregular 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 (AFib).
- ⁸Testing conducted by Apple in July and August 2025 using preproduction Apple Watch SE 3 (GPS + Cellular) and Apple Watch SE 2 (GPS + Cellular), each paired with an iPhone; all devices tested with prerelease 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.
- ⁹Requires 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-us/121115.
- ¹⁰Emergency 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 isn’t set up for cellular service, or if the cellular network does not support emergency calling over IMS. See support.apple.com/108374 and apple.com/watch/cellular for more information.
- ¹¹Not all features will be available if the Apple Watch is set up through Apple Watch For Your Kids. Check support.apple.com/en-us/109036 for details. Wireless service plan required for cellular service. Check apple.com/watch/cellular for participating wireless carriers and eligibility.
- ¹²Wireless service plan required for cellular service. Contact your service provider for more details. Connection may vary based on network availability. Check apple.com/watch/cellular for participating wireless carriers and eligibility. See support.apple.com/HT207578 for additional setup instructions.
- ¹³Data plan required. 5G is available in select markets and through select carriers. Speeds vary based on site conditions and carrier. For details on 5G support, contact your carrier and see apple.com/watch/cellular.
Q: What does cellular mean in the specifications
A: undefined
Q: Does this watch have all of the latest health-related technology such as sleep apnea monitoring?
A: undefined
Q: Is there a monthly fee to keep it connected?
A: Yes, I believe you need to connect it your cellular service provider like your phone but it’s usually much less.
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Reviews
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
Great service, Great salesman
I'm happy with my watch. I wish I had gotten it earlier. I'm very glad I bought it at Best Buy. My salesman was very knowledgeable and helpful
Posted by AMcG
- Rated 5 out of 5 stars
Fantastic device for a very good price
The Apple Watch SE works perfectly. My wife is an RN and having her phone out is not advised, so this allows her to get any important messages discreetly. Along with this, the workout functions and stand up alerts have nudged her a bit to get going more (her words).
This review is from Apple Watch SE 3 (GPS+Cellular) 40mm Aluminum Case with Starlight Sport Band - S/M - Starlight - (2025)
Posted by SonosIsGreat5
- Rated 5 out of 5 stars
A Fantastic Upgrade — Perfect for Swimming and Eve
I recently upgraded to the Apple Watch SE 3 (40mm, GPS + Cellular, Starlight) because I wanted a watch I could finally use for swimming — and it has been perfect. The water resistance works exactly as promised, and it performs flawlessly during all my aquatic activities. I’ve used it for swimming laps, tracking distance, pace, and calories, and the data has been accurate and consistent every time. Beyond the swimming features, the overall performance is excellent. The S10 chip makes everything fast and smooth, and the always-on display is bright and easy to read even outdoors. Health tracking is reliable, battery life lasts all day, and having cellular means I can leave my phone behind but still stay connected. The Starlight aluminum case is lightweight and comfortable, and the sport band holds up well in and out of the water. If you’re looking for a smartwatch that’s great for daily use and truly dependable for swimming or water workouts, this is an amazing choice. Highly recommend! ⭐️⭐️⭐️⭐️⭐️
This review is from Apple Watch SE 3 (GPS+Cellular) 40mm Aluminum Case with Starlight Sport Band - S/M - Starlight - (2025)
Posted by RaissaP
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