Apple Watch Series 4 Battery Information

Apple Watch is so capable you’ll want to wear it all day long. So we made sure we gave it a battery that lasts all day, too. Our goal for battery life is 18 hours after an overnight charge, factoring in things like checking the time, receiving notifications, using apps, and doing a 60-minute workout. And because everyone will use Apple Watch differently, we tested several other metrics as well.

Apple Watch All-Day Battery Life testing was conducted by Apple in August 2018 using preproduction Apple Watch Series 4 (GPS) and Apple Watch Series 4 (GPS + Cellular), each paired with an iPhone; all devices were tested with prerelease software. Battery life varies by use, cellular coverage, configuration, and many other factors; actual results will vary.

All-Day Battery Life

Up to 18 hours

All-day battery life is based on 18 hours with the following use: 90 time checks, 90 notifications, 45 minutes of app use, and a 60-minute workout with music playback from Apple Watch via Bluetooth, over the course of 18 hours. Apple Watch Series 4 (GPS) usage includes connection to iPhone via Bluetooth during the entire 18-hour test. Apple Watch Series 4 (GPS + Cellular) usage includes a total of 4 hours of LTE connection and 14 hours of connection to iPhone via Bluetooth over the course of 18 hours. Apple Watch Series 4 models also provide up to 18 hours of battery life on a Wi-Fi connection. Testing conducted by Apple in August 2018 using Apple Watch Series 4 (GPS) and Apple Watch Series 4 (GPS + Cellular), each paired with an iPhone; all devices tested with prerelease software. Battery life varies by use, configuration, cellular network, signal strength, and many other factors; actual results will vary.

Talk

Up to 2 hours connected to iPhone

Over 1 hour connected to LTE

Tested with call placed from Apple Watch. Up to 2 hours of talk time while connected to iPhone via Bluetooth. Over 1 hour of talk time while connected directly to LTE. Testing conducted by Apple in August 2018 using preproduction Apple Watch Series 4 (GPS) and Apple Watch Series 4 (GPS + Cellular), each paired with an iPhone; all devices tested with prerelease software. Battery life varies by use, configuration, cellular network, signal strength, and many other factors; actual results will vary.

Audio Playback

Up to 10 hours playback from Apple Watch storage

Up to 7 hours streaming playlist with LTE

Up to 5 hours streaming live radio with LTE

Tested with music playback from Apple Watch via Bluetooth. Testing conducted by Apple in August 2018 using preproduction Apple Watch Series 4 (GPS) and Apple Watch Series 4 (GPS + Cellular), each paired with an iPhone; all devices tested with prerelease software. Apple Music LTE streaming tested in August 2018 with a playlist using the default cellular streaming quality setting. Battery life varies by use, configuration, cellular network, signal strength, streaming quality settings, and many other factors; actual results will vary.

Workout

Up to 10 hours indoor workout

Up to 6 hours outdoor workout with GPS

Up to 5 hours outdoor workout with GPS and LTE

Up to 4 hours outdoor workout with streaming audio, GPS, and LTE

Tested with heart rate sensor on during workout sessions. Indoor workout tested while connected to iPhone via Bluetooth. Outdoor workout with GPS tested with Apple Watch Series 4 (GPS) without iPhone. Outdoor workout with GPS and LTE tested with Apple Watch Series 4 (GPS + Cellular) without iPhone. Outdoor workout with streaming audio, GPS, and LTE tested with a playlist using the default cellular streaming quality setting. Testing conducted by Apple in August 2018 using preproduction Apple Watch Series 4 (GPS) and Apple Watch Series 4 (GPS + Cellular), each paired with an iPhone; all devices tested with prerelease software. Battery life varies by use, configuration, cellular network, signal strength, streaming quality settings, and many other factors; actual results will vary.

Charge

About 1.5 hours to 80%

About 2 hours to 100%

Charge times are from 0–80% and 0–100% using the included Apple Watch Magnetic Charging Cable. Testing conducted by Apple in August 2018 using preproduction Apple Watch Series 4 (GPS) and Apple Watch Series 4 (GPS + Cellular), each paired with an iPhone; all devices tested with prerelease software. Charge time varies with environmental factors; actual results will vary.

CPU Performance

Up to 2x faster than Apple Watch Series 3

Results based on the performance of common user tasks. Testing conducted by Apple in August 2018 using preproduction Apple Watch Series 4 (GPS), preproduction Apple Watch Series 4 (GPS + Cellular), and shipping Apple Watch Series 3, each paired with an iPhone; all devices tested with prerelease software. Results reflect the approximate performance of Apple Watch.

Apple Watch Series 3 Battery Information

Apple Watch is so capable you’ll want to wear it all day long. So we made sure we gave it a battery that lasts all day, too. Our goal for battery life is 18 hours after an overnight charge, factoring in things like checking the time, receiving notifications, using apps, and doing a 60-minute workout. And because everyone will use Apple Watch differently, we tested several other metrics as well.

Apple Watch battery testing was conducted by Apple in August 2018 using shipping Apple Watch Series 3 (GPS) and Apple Watch Series 3 (GPS + Cellular), each paired with an iPhone; all devices were tested with prerelease software. Battery life varies by use, cellular coverage, configuration, and many other factors; actual results will vary.

All-Day Battery Life

Up to 18 hours

All-day battery life is based on 18 hours with the following use: 90 time checks, 90 notifications, 45 minutes of app use, and a 60-minute workout with music playback from Apple Watch via Bluetooth, over the course of 18 hours. Apple Watch Series 3 (GPS) usage includes connection to iPhone via Bluetooth during the entire 18-hour test. Apple Watch Series 3 (GPS + Cellular) usage includes a total of 4 hours of LTE connection and 14 hours of connection to iPhone via Bluetooth over the course of 18 hours. Apple Watch Series 3 models also provide up to 18 hours of battery life on a Wi-Fi connection. Testing conducted by Apple in August 2018 using shipping Apple Watch Series 3 (GPS) and Apple Watch Series 3 (GPS + Cellular), each paired with an iPhone; all devices tested with prerelease software. Battery life varies by use, configuration, cellular network, signal strength, and many other factors; actual results will vary.

Talk

Up to 3 hours connected to iPhone

Over 1 hour connected to LTE

Tested with call placed from Apple Watch. Up to 3 hours of talk time while connected to iPhone via Bluetooth. Over 1 hour of talk time while connected directly to LTE. Testing conducted by Apple in August 2017 using preproduction Apple Watch Series 3 (GPS) and Apple Watch Series 3 (GPS + Cellular), each paired with an iPhone; all devices tested with prerelease software. Battery life varies by use, configuration, cellular network, signal strength, and many other factors; actual results will vary.

Audio Playback

Up to 10 hours playback from Apple Watch storage

Up to 7 hours streaming playlist with LTE

Up to 5 hours streaming live radio with LTE

Tested with music playback from Apple Watch via Bluetooth. Testing conducted by Apple in August 2017 using preproduction Apple Watch Series 3 (GPS) and Apple Watch Series 3 (GPS + Cellular), each paired with an iPhone; all devices tested with prerelease software. Apple Music LTE streaming tested in October 2017 with a playlist using the default cellular streaming quality setting. Battery life varies by use, configuration, cellular network, signal strength, streaming quality settings, and many other factors; actual results will vary.

Workout

Up to 10 hours indoor workout

Up to 5 hours outdoor workout with GPS

Up to 4 hours outdoor workout with GPS and LTE

Up to 3 hours outdoor workout with streaming audio, GPS, and LTE

Tested with heart rate sensor on during workout sessions. Indoor workout tested while connected to iPhone via Bluetooth. Outdoor workout with GPS tested with Apple Watch Series 3 (GPS) without iPhone. Outdoor workout with GPS and LTE tested with Apple Watch Series 3 (GPS + Cellular) without iPhone. Testing conducted by Apple in August 2017 using preproduction Apple Watch Series 3 (GPS) and Apple Watch Series 3 (GPS + Cellular), each paired with an iPhone; all devices tested with prerelease software. Outdoor workout with streaming audio, GPS, and LTE tested in October 2017 with a playlist using the default cellular streaming quality setting. Battery life varies by use, configuration, cellular network, signal strength, streaming quality settings, and many other factors; actual results will vary.

Charge

About 1.5 hours to 80%

About 2 hours to 100%

Charge times are from 0–80% and 0–100% using the included Apple Watch Magnetic Charging Cable. Testing conducted by Apple in August 2017 using preproduction Apple Watch Series 3 (GPS) and Apple Watch Series 3 (GPS + Cellular), each paired with an iPhone; all devices tested with prerelease software. Charge time varies with environmental factors; actual results will vary.

CPU Performance

Up to 1.7x faster than Apple Watch Series 2

Results based on the performance of common user tasks. Testing conducted by Apple in August 2017 using preproduction Apple Watch Series 3 (GPS), preproduction Apple Watch Series 3 (GPS + Cellular), and shipping Apple Watch Series 2, each paired with an iPhone; all devices tested with prerelease software. Results reflect the approximate performance of Apple Watch.