Apple Watch Series 4 40mm GPS Only Silver Aluminum Case With Seashell Sport Loop - MU652B/A

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1 year manufacturer warranty

This item comes with 1 year Manufacturer warranty

  • Apple watchOS 5
  • Aluminum Chassis with Ion-X Glass
  • 1.57" 394 x 324 Display
  • Generate Your Own ECG
  • Fall Detection + SOS Emergency
  • Water-Resistant to 164'/ 50m
  • Bluetooth 5.0 | 802.11b/g/n WiFi

The Apple Watch Series 4 features a 40mm curved watch face with an LTPO OLED Retina display and digital crown. The crown is how you navigate through watchOS 5 to view apps and content. The crown has haptic feedback, giving each turn a mechanical click-like feel, and an integrated titanium electrode lets you use the ECG app.

With the new Electrocardiogram app, you can get a comprehensive reading of your heart activity. The app also tells you of any irregularities for you to have checked out. This means your physician can get a better idea of how your heart is doing without ordering any expensive tests.

It can also detect and monitor your workouts, giving you essential metrics to help you reach your goals. It's water-resistant up to 164', so you can record laps on a track or in the pool. Even when not working out, the Apple Watch utilizes three activity rings to motivate you to keep moving throughout your day.

The Apple Watch Series 4 stays connected to the outside world via Wi-Fi or a wireless Bluetooth connection to your iPhone. When connected, you can use the watch as an extension of your phone to view text messages, interact with Siri, navigate via built-in GPS, or make handsfree calls with the integrated speaker and microphone.

You can help stay motivated during workouts by streaming your favorite music, podcasts, or invite a friend to a seven-day challenge. In a competition, you'll share your activity and compete for bragging rights and digital medals. Notifications of your friend's progress act like a personal trainer to keep you going.


The Apple Watch is made from aluminum and is designed for strength and light weight. The display is covered by Ion-X strengthened glass, which is molecularly fortified through ion exchange

Generate an ECG Anytime, Anywhere

The built-in titanium electrode in the digital crown and the sapphire crystal electronic heart sensor on the back of the Apple Watch gives you the ability to record your own ECG, or electrocardiogram. It's similar to a single-lead electrocardiogram and takes only 30 seconds to create. Just touch the digital crown and wait for the Apple Watch to generate your ECG waveform.

The ECG app is meant to help you detect whether you're heart's beating at a normal sinus rhythm, or if your rhythm shows signs of irregularity, or atrial fibrillation. Your ECGs are stored in the Health app on your iPhone and you can share them with your doctor.

Fall Detection

The Apple Watch Series 4 features an updated accelerometer and gyroscope that can detect whether you've fallen. If a fall occurs, the Apple Watch delivers an on-screen prompt where you can swipe to have it call emergency services or dismiss it. After 60 seconds of unresponsiveness, the Apple Watch will place the call automatically and send a message to your emergency contacts.


Communicate with other friends that own Apple Watches by using them like walkie-talkies. Just press to talk and let go to listen.

Brand NameApple
Product TypeSmart Watch
Operating SystemwatchOS 5
Processor Apple S4 dual-core
Storage 16 GB
SensorsAccelerometer, Barometer, Gyroscope, Heart Rate, Light Sensor
Activity Tracker Yes
Built-In Speaker Yes
Microphone Yes
Vibration Yes
CompatibilityiPhone 5s or later with iOS 11 or later
Dial Type Digital
Dial ShapeRectangular
Dial Size 1.57" / 40 mm
Display TechnologyOLED Retina display
Resolution 394 x 324
Pixel Density 326 ppi
Display Colors Supported 16.7 million
Connectivity Bluetooth, Wi-Fi
Bluetooth 5.0
Wireless Range 33' / 10 m
Watch Crystal MaterialIon-X strengthened glass
Case Materials Aluminum
Water RatingUp to 50m Water resistant
Band MaterialSilicone
Wrist Size Fits wrists 5.1 to 7.9" / 130 to 200 mm
BatteryBuilt-in rechargeable Lithium-ion
Normal Use: Up to 18 hours
Charging Method Magnetic Connector
Case Dimensions1.57 x 1.34 x 0.42" / 40 x 34 x 10.7 mm
Weight 1.4 oz / 40 g (Watch Only)
More Information
Weight 2.0000
ean 0190198841100
mpn MU652B/A
condition New
Manufacturer Apple
warranty 1 year manufacturer warranty
Ship Bundle Items N/A
images /4/9/4942_3_.jpg
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