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AppleWatch Ultra3 was designed for endurance athletes, outdoor adventurers and water sports enthusiasts who need longer battery life to train, compete and explore. It can last upto 42hours without needing to charge. With a full charge in the morning, after an 18hour day, factoring in activities like doing a 60minute workout, using apps, receiving notifications and checking the time, Ultra3 can track sleep for 6hours and provide another 18hours of battery life.
AppleWatch Ultra3 battery life testing was conducted by Apple in July and August2025 using preproduction AppleWatch Ultra3 paired with an iPhone; all devices were tested with prerelease software. Battery life varies by use, network coverage, configuration and many other factors; actual results will vary.
Multi-day battery life including sleeptracking is based on the following use: 600time checks, 180notifications, 30minutes of app use, a 60minute workout with music playback from AppleWatch via Bluetooth and 6hours of sleep tracking, overthe course of 42hours; AppleWatch Ultra3 usage includes atotal of 8hours of cellular connection and 34hours of connection to iPhone via Bluetooth over the course of 42hours. Battery life in LowPowerMode including sleep tracking is based on the following use: 900time checks, 270notifications, 45minutes of app use, two 60minute workouts with music playback from AppleWatch via Bluetooth and 18hours of sleep tracking, over the course of 72hours; AppleWatch Ultra3 usage includes ondemand cellular connection and 60hours of connection to iPhone via Bluetooth over the course of 72hours. Testing conducted byApple in July and August 2025 using preproduction AppleWatch Ultra3 paired with an iPhone; all devices tested with prerelease software. Battery life varies by use, configuration, mobile network, signal strength and many otherfactors; actual results willvary.
Tested without iPhone and with heart rate sensor on during workout sessions. Testing conducted by Apple in July and August 2025 using preproduction AppleWatch Ultra3; all devices tested with prerelease software. Battery life varies by use, configuration, mobile network, signal strength and many other factors; actual results will vary.
Tested with music playback from AppleWatch storage via Bluetooth. Testing conducted by Apple in July and August 2025 using preproduction AppleWatch Ultra3; all devices tested with prerelease software. Battery life varies by use, configuration, mobile network, signal strength and many other factors; actual results willvary.
Chargetimes are from 080% and 0100% using the included AppleWatch Magnetic Fast Charger to USBCCable. Testing conducted by Apple in July and August 2025 using preproduction AppleWatch Ultra3 paired with an iPhone; all devices tested with prerelease software, AppleWatch Magnetic Fast Charger to USBC Cable (Model A2515) and Apple 20W USBC Power Adapter (Model A2305). Charge time varies with adapter, region, settings, initial battery levels, usage and environmental factors; actual results willvary.
Testing conducted by Apple in July and August 2025 using preproduction AppleWatch Ultra3 paired with an iPhone; all devices tested with prerelease software, AppleWatch Magnetic Fast Charger to USBC Cable (Model A2515) and Apple 20W USBC Power Adapter (Model A2305). Charge time varies with adapter, region, settings, initial battery levels, usage and environmental factors; actual results willvary.
Testing conducted by Apple in July and August 2025 using preproduction AppleWatch Ultra3 paired with an iPhone; all devices tested with prerelease software, AppleWatch Magnetic Fast Charger to USBC Cable (Model A2515) and Apple 20W USBC Power Adapter (Model A2305). Charge time varies with adapter, region, settings, initial battery levels, usage and environmental factors; actual results willvary.
AppleWatch Series11 is the ultimate device for a healthy life that can last upto 24hours without needing to charge, including 18hours of normal daily use and 6hours of sleep tracking. An 18hour day factors in activities like doing a 60minute workout, using apps, receiving notifications and checking thetime.
AppleWatch AllDay Battery Life testing was conducted by Apple in July and August 2025 using preproduction AppleWatch Series11 (GPS) and AppleWatch Series11 (GPS+ Cellular), each paired with an iPhone; all devices were tested with prerelease software. Battery life varies by use, network coverage, configuration and many other factors; actual results will vary.
Allday battery life including sleep tracking is basedon the following use: 300time checks, 90 notifications, 15minutes of app use, a 60minute workout with music playback from AppleWatch via Bluetooth and 6hours of sleep tracking, over the course of 24hours; AppleWatch Series11 (GPS) usage includes connection to iPhone via Bluetooth during the entire 24hour test; AppleWatch Series11 (GPS+ Cellular) usage includes a total of 4hours of cellular connection and 20hours of connection to iPhone via Bluetooth over the course of 24hours. Battery life in LowPowerMode including sleep tracking is based on the following use: 530time checks, 160 notifications, 26minutes of app use, a 60minute workout with music playback from AppleWatch via Bluetooth and 6hours of sleep tracking, over the course of 38hours; AppleWatch Series11 (GPS) usage includes connection to iPhone via Bluetooth during the entire 38hour test; AppleWatch Series11 (GPS+ Cellular) usage includes ondemand cellular connection and 30hours of connection to iPhone via Bluetooth over the course of 38hours. Testing conducted byApple in July and August 2025 using preproduction AppleWatch Series11 (GPS) and AppleWatch Series11 (GPS+ Cellular), each paired with an iPhone; all devices tested with prerelease software. Battery life varies by use, configuration, mobile network, signal strength and many other factors; actual results will vary.
Tested with music playback from AppleWatch storage via Bluetooth. Testing conducted by Apple in July and August 2025 using preproduction AppleWatch Series11 (GPS) and AppleWatch Series11 (GPS+ Cellular); all devices tested with prerelease software. Battery life varies by use, configuration, mobile network, signal strength and many other factors; actual results will vary.
Tested without iPhone and with heart rate sensor on during workout sessions. Testing conducted byApple in July and August 2025 using preproduction AppleWatch Series11 (GPS) and AppleWatch Series11 (GPS+ Cellular); all devices tested with prerelease software. Battery life varies by use, configuration, mobile network, signal strength and many other factors; actual results will vary.
Chargetimes are from 080% and 0100% using the included AppleWatch Magnetic Fast Charger to USBCCable. Testing conducted by Apple in July and August 2025 using preproduction AppleWatch Series11 (GPS) and AppleWatch Series11 (GPS+ Cellular), each paired with an iPhone; all devices tested with prerelease software, AppleWatch Magnetic Fast Charger to USBC Cable (Model A2515) and Apple 20W USBC Power Adapter (Model A2305). Fast-charge testing conducted with drained AppleWatch units. Times measured from the appearance of the Apple logo as the unit started up. Charge time varies with adapter, region, settings, initial battery levels, usage and environmental factors; actual results willvary.
Testing conducted by Apple in July and August 2025 using preproduction AppleWatch Series11 (GPS) and AppleWatch Series11 (GPS+ Cellular), each paired with an iPhone; all devices tested with prerelease software, AppleWatch Magnetic Fast Charger to USBC Cable (Model A2515) and Apple 20W USBC Power Adapter (Model A2305). Charge time varies with adapter, region, settings, initial battery levels, usage and environmental factors; actual results willvary.
Testing conducted by Apple in July and August 2025 using preproduction AppleWatch Series11 (GPS) and AppleWatch Series11 (GPS+ Cellular), each paired with an iPhone; all devices tested with prerelease software, AppleWatch Magnetic Fast Charger to USBC Cable (Model A2515) and Apple 20W USBC Power Adapter (Model A2305). Charge time varies with adapter, region, settings, initial battery levels, usage and environmental factors; actual results willvary.
AppleWatchSE3 has allday 18hour battery life. Starting with a fully charged battery in the morning, it can last up to 18hours, factoring in activities like doing a 60minute workout, using apps, receiving notifications and checking the time. And because everyone will use AppleWatch differently, we tested several other metrics aswell.
AppleWatch AllDay Battery Life testing was conducted by Apple in July and August 2025 using preproduction AppleWatchSE3 (GPS) and AppleWatchSE3 (GPS+ Cellular), each paired with an iPhone; all devices were tested with prerelease software. Battery life varies by use, network coverage, configuration and many other factors; actual results willvary.
Allday battery life is based on the following use: 300time checks, 90 notifications, 15minutes of app use and a 60minute workout with music playback from AppleWatch via Bluetooth, over the course of 18hours; AppleWatchSE3 (GPS) usage includes connection to iPhone via Bluetooth during the entire 18hour test; AppleWatchSE3 (GPS+ Cellular) usage includes a total of 4hours of cellular connection and 14hours of connection to iPhone via Bluetooth over the course of 18hours. Battery life in LowPowerMode including sleep tracking is based on the following use: 430time checks, 130 notifications, 20minutes of app use, a 60minute workout with music playback from AppleWatch via Bluetooth and 6hours of sleep tracking, over the course of 32hours; AppleWatchSE3 (GPS) usage includes connection to iPhone via Bluetooth during the entire 32hour test; AppleWatchSE3 (GPS+ Cellular) usage includes ondemand cellular connection and 24hours of connection to iPhone via Bluetooth over the course of 32hours. Testing conducted by Apple in July and August 2025 using preproduction AppleWatchSE3 (GPS) and AppleWatchSE3 (GPS+ Cellular), each paired with an iPhone; all devices tested with prerelease software. Battery life varies by use, configuration, mobile network, signal strength and many other factors; actual results willvary.
AppleWatch For Your Kids battery life is based on the following use: 80time checks, 50 notifications, 22minutes of app use, a 5minute phone call and a 30minute workout with music playback from AppleWatch via Bluetooth, over the course of 16hours with cellular connection and FindMy location sharing enabled. Testing conducted by Apple in July and August 2025 using preproduction AppleWatchSE3 (GPS+ Cellular); all devices tested with prerelease software. Battery life varies by use, configuration, mobile network, signal strength and many other factors; actual results willvary.
Tested with music playback from AppleWatch storage via Bluetooth. Testing conducted by Apple in July and August 2025 using preproduction AppleWatchSE3 (GPS) and AppleWatchSE3 (GPS+ Cellular); all devices tested with prerelease software. Battery life varies by use, configuration, mobile network, signal strength and many other factors; actual results willvary.
Tested without iPhone and with heart rate sensor on during workout sessions. Testing conducted by Apple in July and August 2025 using preproduction AppleWatchSE3 (GPS) and AppleWatchSE3 (GPS+ Cellular); all devices tested with prerelease software. Battery life varies by use, configuration, mobile network, signal strength and many other factors; actual results willvary.
Chargetimes are from 080% and 0100% using the included AppleWatch Magnetic Fast Charger to USBCCable. Testing conducted by Apple in July and August 2025 using preproduction AppleWatchSE3 (GPS) and AppleWatchSE3 (GPS+ Cellular), each paired with an iPhone; all devices tested with prerelease software, AppleWatch Magnetic Fast Charger to USBC Cable (Model A2515) and Apple 20W USBC Power Adapter (Model A2305). Fast-charge testing conducted with drained AppleWatch units. Times measured from the appearance of the Apple logo as the unit started up. Charge time varies with adapter, region, settings, initial battery levels, usage and environmental factors; actual results willvary.
Testing conducted by Apple in July and August 2025 using preproduction AppleWatchSE3 (GPS+ Cellular) and AppleWatchSE2 (GPS+ Cellular), each paired with an iPhone; all devices tested with prerelease software, AppleWatch Magnetic Fast Charger to USBC Cable (Model A2515) and Apple 20W USBC Power Adapter (Model A2305). Charge time varies with adapter, region, settings, initial battery levels, usage and environmental factors; actual results willvary.
Testing conducted by Apple in July and August 2025 using preproduction AppleWatchSE3 (GPS) and AppleWatchSE3 (GPS+ Cellular), each paired with an iPhone; all devices tested with prerelease software, AppleWatch Magnetic Fast Charger to USBC Cable (Model A2515) and Apple 20W USBC Power Adapter (Model A2305). Charge time varies with adapter, region, settings, initial battery levels, usage and environmental factors; actual results willvary.
Testing conducted by Apple in July and August 2025 using preproduction AppleWatchSE3 (GPS) and AppleWatchSE3 (GPS+ Cellular), each paired with an iPhone; all devices tested with prerelease software, AppleWatch Magnetic Fast Charger to USBC Cable (Model A2515) and Apple 20W USBC Power Adapter (Model A2305). Charge time varies with adapter, region, settings, initial battery levels, usage and environmental factors; actual results willvary.
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