Used Apple Watch Series 4, GPS + Cellular, 40mm, Silver Aluminum Case, White Sport Band

Apple Watch Series 4

Stay connected, healthy, and up-to-date with the all-new Apple Watch Series 4. Featuring a larger, more vivid, and curved 40mm or 44mm display and a digital crown with haptic feedback, the completely redesigned smartwatch makes it easier to view and navigate through your apps and content on the go, while offering new and innovative ways to monitor your health and activity. The back of the watch features an optical heart sensor that quickly checks your heart rate while an electric heart sensor works with the digital crown to generate an electrocardiogram (ECG) that you can save and share with your doctor. The watch can also detect hard falls and give you the option to contact emergency services. On regular days, it detects and monitors your workouts, and even helps you stay motivated by providing key metrics, streaming your favorite music, and allowing you to invite a friend to do a seven-day challenge where you can share your activity and get notifications about your friend’s progress. It is also water resistant up to 50 meters, so you can record your laps in the pool or open waters. Enjoy all these and more while staying connected via Bluetooth, Wi-Fi, or cellular connection.

All new. For a better you.

Apple Watch Series 4. Fundamentally redesigned and re-engineered to help you stay even more active, healthy, and connected.

All-New Design

The largest Apple Watch display yet. This is huge.

The display is the defining feature of Apple Watch, and Series 4 pushes it further than ever. The challenge was to make it bigger without noticeably increasing the size of the case or compromising the battery life. Narrower borders enable a viewing area that’s over 30% larger, while a new display technology called LTPO improves power efficiency, helping you get through the day on a single charge.

A better experience all the way around.

Curved corners precisely match the radius of the case, creating a more pleasing, continuous appearance. This also allows imagery and the touch surface to extend to the farthest reaches of the screen.

More information in every millimeter.

To take full advantage of the new dimensions of the display, the entire interface has been redesigned to provide more information with richer detail. The new Infograph watch face can accommodate up to eight complications, so you can see more and do more at a glance.

Aside is Infograph watch face with: Air Quality Index, UV Index, Heart Rate, Activity, Music, Workout, Breathe, Weather

Infograph Modular Watch Face with date, Weather, Activity, Music, Breathe, Heart Rate

Infograph watch face with: Stop Watch, Alarm, World Clock, Timer, Sunrise/Sunset

Infograph Modular watch face with: Date, Weather, Heart Rate, Breathe, Air Quality Index, Workout

Infograph watch face with: UV Index, Air Quality Index, Weather, World Clock, Solar, Earth, Sunrise/Sunset, Moon

Digital Crown. A breakthrough reborn.

The Digital Crown was invented to provide an easy way to navigate on Apple Watch without obstructing the display. With Apple Watch Series 4, the mechanism has been totally re‑engineered. Haptic feedback now delivers a precise, click-like feel as you scroll. And a titanium electrode built into the top allows you to use the ECG app simply by touching it with your finger.

Proactive Health Monitor

Part guardian, part guru.

Apple Watch Series 4 inspires you to live a healthier life by helping you manage everything from everyday stress to calories burned. At the same time, it monitors your heart rate and lets you know if it detects something of concern. And that sense of security now goes a step further with fall detection and Emergency SOS. The new Apple Watch has your back — as well as your heart.

ECG on your wrist. Anytime, anywhere.

With the ECG app, Apple Watch Series 4 is capable of generating an ECG similar to a single-lead electrocardiogram. It’s a momentous achievement for a wearable device that can provide critical data for doctors and peace of mind for you.

Your finger can tell you a lot about your heart.

Electrodes built into the Digital Crown and the back crystal work together with the ECG app to read your heart’s electrical signals. Simply touch the Digital Crown to generate an ECG waveform in just 30 seconds. The ECG app can indicate whether your heart rhythm shows signs of atrial fibrillation — a serious form of irregular heart rhythm — or sinus rhythm, which means your heart is beating in a normal pattern.

Electrical sensors read the beats.

Each beat of the heart sends out an electrical impulse. With the ECG app, Apple Watch Series 4 can read and record these impulses by connecting the circuit between your heart and both arms. The resulting ECG waveform, its classification, and any notes you’ve entered on related symptoms are automatically stored in the Health app on your iPhone. You can share them with your doctor and have a better-informed conversation about your health.

It has your heart in mind.

Unusually high or low heart rates and Irregular heart rhythms (known as arrhythmias) could be signs of a serious condition. But many people don’t recognize the symptoms, so the underlying causes often go undiagnosed. Apple Watch Series 4 checks your heart and alerts you to these irregularities — so you can take action and consult your doctor.

Track all your health data in one convenient place.

All your heart data, as well as information from your health and fitness apps, is collected in your iPhone Health app. Activity, sleep, mindfulness, and nutrition are highlighted there in one snapshot.

Fall detection.

With the new accelerometer and gyroscope, Apple Watch Series 4 can detect that you’ve fallen. When an incident like this occurs, a hard fall alert is delivered, and you can easily initiate a call to emergency services or dismiss the alert. If you’re unresponsive after 60 seconds, the emergency call will be placed automatically and a message with your location will be sent to your emergency contacts.

Emergency SOS.

Emergency SOS allows you to quickly get help. It calls 911, notifies your emergency contacts, sends your current location, and displays your Medical ID badge on the screen for emergency personnel. And Apple Watch Series 4 with cellular does it all even when you’re away from your phone.

Fill your lungs. Clear your mind.

Taking moments throughout the day to stop, relax, and practice mindfulness can help reduce stress and improve overall health. The Breathe app keeps you centered by taking you through a series of calming breaths. It’s now available as a watch face, so you can bring focus to your day just by raising your wrist.

Ultimate Workout Partner

Workouts that work harder.

Apple Watch Series 4 is more than just a sports watch. It’s like a trainer that understands the ways you work out — from running to yoga to swimming — and puts every metric you need right on your wrist. With innovations from start to finish line, it’s made for the athlete in us all.

Ready for whatever moves you.

Whether it’s training for a marathon or swimming laps at the pool, Apple Watch Series 4 has something for everyone. Now including yoga and hiking, the Workout app works every way you want to exercise. You can set individual goals, measure your calorie burn, and track your progress over time in the Activity app on your iPhone. Ready? Go.

Big steps forward for runners.

With a gentle tap, new pace alerts let you know whether you’re ahead of or behind where you want to be. The new cadence metric lets you see your steps per minute. And rolling miles allows you to see your split for the preceding mile at any time.

Connected gym.

With just a tap, you can pair your watch with compatible gym equipment.* So you can keep important metrics like heart rate, speed, and calories in sync between your watch and the treadmill, stair climber, or stationary bike you’re on.

* Participating equipment manufacturers and gyms vary.

Automatic workout detection.

For most popular workouts, Apple Watch senses when you’re moving and alerts you to start the Workout app. It even gives you credit for the exercise you’ve already started. It will also remind you to end your workout, in case you get distracted when you’re cooling down.

Sweat, surf, and swim proof.

Apple Watch Series 4 is water resistant to 50 meters and tracks both pool and open-water workouts.* Turn the Digital Crown to eject water from the speaker using a burst of sound.

* Apple Watch Series 4 has a water resistance rating of 50 meters under ISO standard 22810:2010. This means that it may be used for shallow-water activities like swimming in a pool or ocean. However, Apple Watch Series 4 should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth.

Music and podcasts to keep you moving.

Whether it’s an album or playlist from Apple Music, an episode from Apple Podcasts, or a track from Beats 1 radio, you can stream all the motivation you need, right from your watch.*

* Apple Music requires a subscription.

Easy Ways to Connect

The freedom of cellular.

Take a call from the trail. Check in with a buddy over Walkie-Talkie. Keep your workouts going by streaming Apple Music. Or raise your wrist and ask Siri to order your usual. Apple Watch Series 4 with cellular makes it easy to stay connected to the people and information you care about most. Even when you don’t have your phone.1

Call and text with just your watch.

Built-in cellular lets you go with just your watch. Take calls, send texts, listen to voicemail — Apple Watch Series 4 with cellular keeps you connected no matter where you go.*

*Wireless service plan required for cellular service. Apple Watch and iPhone service provider must be the same. Not available with all service providers. Not all service providers support enterprise accounts or prepaid plans; check with your employer and service provider. Some legacy plans may not be compatible. Roaming is not available. Contact your service provider for more details. Check www.apple.com/watch/cellular/ for participating wireless carriers and eligibility.

Say hello to Walkie‑Talkie.

Quicker than a call. More personal than a text. The Walkie-Talkie app lets you communicate in a fun, new way with anyone who has an Apple Watch. Just press to talk. Let go to listen. Roger that?

If you need it, Siri is on it.

Siri is better in more ways than one. You no longer need to say “Hey Siri.” Just raise your wrist and speak. And since the Siri watch face gets to know you as you use it, it can proactively make suggestions at the right time and place — like ordering your morning coffee.

Listen to what you love.

Stream anything from Apple Music and Apple Podcasts, directly from your wrist. You’ve got over 50 million songs to choose from. And a huge variety of stories, personalities, and news. It’s up to you. Rock your run or learn as you burn.*

*Apple Music requires a subscription.

Pay instantly and securely.

Charge purchases to your credit or debit card simply by activating Apple Pay and holding your watch to the checkout reader. You can also send or receive Apple Pay Cash via the Messages app. No matter how you use it, Apple Pay keeps your financial information completely private and secure.

A view with more room.

Thanks to the larger display on Apple Watch Series 4, you get more information and richer detail at a glance than ever before. Maps are bigger, stretching from curved corner to curved corner. Calendars are even more comprehensive and helpful.

Apple Watch, Series 4
Introducing Apple Watch Series 4. Fundamentally redesigned and re-engineered to help you stay even more active, healthy, and connected

All-New Design
Not just evolved, transformed.

Series 4 represents a fundamental redesign and re-engineering of Apple Watch. From the curved corners of the larger, all-new display to the architecture of the S4 chip, every detail has been thoughtfully considered. Apple Watch has always been a uniquely personal product. And now it's even more powerful.

The largest Apple Watch display yet. This is huge.
The display is the defining feature of Apple Watch, and Series 4 pushes it further than ever. The challenge was to make it bigger without noticeably increasing the size of the case or compromising the battery life. Narrower borders enable a viewing area that's over 30% larger, while a new display technology called LTPO improves power efficiency, helping you get through the day on a single charge.

A better experience all the way around.

Curved corners precisely match the radius of the case, creating a more pleasing, continuous appearance. This also allows imagery and the touch surface to extend to the farthest reaches of the screen.

More information in every millimeter.
To take full advantage of the new dimensions of the display, the entire interface has been redesigned to provide more information with richer detail. The new Infograph watch face can accommodate up to eight complications, so you can see more and do more at a glance.

Digital Crown. A breakthrough reborn.
The Digital Crown was invented to provide an easy way to navigate on Apple Watch without obstructing the display. With Apple Watch Series 4, the mechanism has been totally re-engineered. Haptic feedback now delivers a precise, click-like feel as you scroll. And a titanium electrode built into the top allows you to use the ECG app simply by touching it with your finger.

A miracle of miniaturization.
Already one of the most intricate systems Apple has created, the Digital Crown on Apple Watch Series 4 adds even more capability into significantly less space. The entire assembly is 30 percent smaller, yet it includes 21 percent more components.

Two sensors. A pair of eyes on your heart.
The optical heart sensor has been part of Apple Watch from the beginning, allowing you to quickly check your heart rate. Thanks to a new electrical heart sensor (made up of an electrode in the Digital Crown and electrodes on the back crystal), you can use the ECG app to generate an ECG, or electrocardiogram, at any time to share with your doctor.

The biggest thinking happens in the smallest spaces.
Optimized in every way, the new Apple Watch is more powerful, yet even thinner than before. And it delivers up to 18 hours of battery life on a single charge.

All-new S4 chip.
The S4 is more than just a processor. It's a complete System in Package (SiP), with the entire system fabricated onto a single component. This architecture allows Apple Watch to pack amazing capabilities into a tiny space. In fact, Apple Watch is the only product in the world that runs completely on a SiP.

Up to 2x faster.
This fourth-generation CPU is faster than ever.2 Apps open more quickly and performance is boosted across the entire system.

50 percent louder speaker.
Larger and even more powerful, the Apple Watch Series 4 speaker provides dramatically bigger sound for Siri and Walkie-Talkie. In addition, the microphone has been relocated to the opposite side to reduce echoes for clearer phone calls

Proactive Health Monitor
Apple Watch Series 4 inspires you to live a healthier life by helping you manage everything from everyday stress to calories burned. At the same time, it monitors your heart rate and lets you know if it detects something of concern. And that sense of security now goes a step further with fall detection and Emergency SOS. The new Apple Watch has your back as well as your heart.

ECG on your wrist. Anytime, anywhere.
With the ECG app, Apple Watch Series 4 is capable of generating an ECG similar to a single-lead electrocardiogram. It's a momentous achievement for a wearable device that can provide critical data for doctors and peace of mind for you.

Your finger can tell you a lot about your heart.
Electrodes built into the Digital Crown and the back crystal work together with the ECG app to read your heart's electrical signals. Simply touch the Digital Crown to generate an ECG waveform in just 30 seconds. The ECG app can indicate whether your heart rhythm shows signs of atrial fibrillation a serious form of irregular heart rhythm or sinus rhythm, which means your heart is beating in a normal pattern.

Digital Crown Electrode. The all-new Digital Crown contains a titanium electrode that reads the electrical heart impulse s in your fingertip.

Back Crystal Electrodes. An ultrathin chromium silicon carbon nitride layer applied to the sapphire crystal reads the electrical heart impulses in your wrist.

Electrical sensors read the beats.
Each beat of the heart sends out an electrical impulse. With the ECG app, Apple Watch Series 4 can read and record these impulses by connecting the circuit between your heart and both arms. The resulting ECG waveform, its classification, and any notes you've entered on related symptoms are automatically stored in the Health app on your iPhone. You can share them with your doctor and have a better-informed conversation about your health.

It has your heart in mind.
Unusually high or low heart rates and Irregular heart rhythms (known as arrhythmias) could be signs of a serious condition. But many people don't recognize the symptoms, so the underlying causes often go undiagnosed. Apple Watch Series 4 checks your heart and alerts you to these irregularities so you can take action and consult your doctor.

Fall detection.
With the new accelerometer and gyroscope, Apple Watch Series 4 can detect that you've fallen. When an incident like this occurs, a hard fall alert is delivered, and you can easily initiate a call to emergency services or dismiss the alert. If you're unresponsive after 60 seconds, the emergency call will be placed automatically and a message with your location will be sent to your emergency contacts.

Emergency SOS.
Emergency SOS allows you to quickly get help. It calls 911, notifies your emergency contacts, sends your current location, and displays your Medical ID badge on the screen for emergency personnel. And Apple Watch Series 4 with cellular does it all even when you're away from your phone.

Fill your lungs. Clear your mind.
Taking moments throughout the day to stop, relax, and practice mindfulness can help reduce stress and improve overall health. The Breathe app keeps you centered by taking you through a series of calming breaths. It's now available as a watch face, so you can bring focus to your day just by raising your wrist.

Ultimate Workout Partner
Apple Watch Series 4 is more than just a sports watch. It's like a trainer that understands the ways you work out from running to yoga to swimming and puts every metric you need right on your wrist. With innovations from start to finish line, it's made for the athlete in us all.

Ready for whatever moves you.
Whether it's training for a marathon or swimming laps at the pool, Apple Watch Series 4 has something for everyone. Now including yoga and hiking, the Workout app works every way you want to exercise. You can set individual goals, measure your calorie burn, and track your progress over time in the Activity app on your iPhone. Ready? Go.

Big steps forward for runners.
With a gentle tap, new pace alerts let you know whether you're ahead of or behind where you want to be. The new cadence metric lets you see your steps per minute. And rolling miles allows you to see your split for the preceding mile at any time.

Connected gym.
With just a tap, you can pair your watch with compatible gym equipment.1 So you can keep important metrics like heart rate, speed, and calories in sync between your watch and the treadmill, stair climber, or stationary bike you're on.

Automatic workout detection.
For most popular workouts, Apple Watch senses when you're moving and alerts you to start the Workout app. It even gives you credit for the exercise you've already started. It will also remind you to end your workout, in case you get distracted when you're cooling down.

Sweat, surf, and swim proof.
Apple Watch Series 4 is water resistant to 50 meters and tracks both pool and open-water workouts.2 Turn the Digital Crown to eject water from the speaker using a burst of sound.

Put your game face on.
With room for eight complications, the new Infograph watch face can reflect whatever you're into, in richer detail than ever. Create your own custom workout face by adding complications like Music, Heart Rate, or whatever else gets your pulse going.

Music and podcasts to keep you moving.
Whether it's an album or playlist from Apple Music, an episode from Apple Podcasts, or a track from Beats 1 radio, you can stream all the motivation you need, right from your watch.