Apple Watch Ultra 3 Battery Information
Apple Watch Ultra 3 was designed for endurance athletes, outdoor adventurers, and water sports enthusiasts who need longer battery life to train, compete, and explore. It can last up to 42 hours without needing to charge. With a full charge in the morning, after an 18-hour day, factoring in activities like doing a 60-minute workout, using apps, receiving notifications, and checking the time, Ultra 3 can track sleep for 6 hours and provide another 18 hours of battery life.
Apple Watch Ultra 3 battery life testing was conducted by Apple in July and August 2025 using preproduction Apple Watch Ultra 3 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.
Multi-Day Battery Life
Up to 42 hours
Up to 72 hours in Low Power Mode
Multi-day battery life including sleep tracking is based on the following use: 600 time checks, 180 notifications, 30 minutes of app use, a 60‑minute workout with music playback from Apple Watch via Bluetooth, and 6 hours of sleep tracking over the course of 42 hours; Apple Watch Ultra 3 usage includes a total of 8 hours of cellular connection and 34 hours of connection to iPhone via Bluetooth over the course of 42 hours. Battery life in Low Power Mode including sleep tracking is based on the following use: 900 time checks, 270 notifications, 45 minutes of app use, two 60‑minute workouts with music playback from Apple Watch via Bluetooth, and 18 hours of sleep tracking over the course of 72 hours; Apple Watch Ultra 3 usage includes on-demand cellular connection and 60 hours of connection to iPhone via Bluetooth over the course of 72 hours. Testing conducted by Apple in July and August 2025 using preproduction Apple Watch Ultra 3 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.
Workout
Up to 35 hours outdoor workout with GPS and LTE in Low Power Mode with fewer GPS and heart rate readings
Up to 20 hours outdoor workout with GPS and LTE in Low Power Mode
Up to 14 hours outdoor workout with GPS
Tested without iPhone and with heart rate sensor on during workout sessions. Testing conducted by Apple in July and August 2025 using preproduction Apple Watch Ultra 3; 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 20 hours playback from Apple Watch storage
Tested with music playback from Apple Watch storage via Bluetooth. Testing conducted by Apple in July and August 2025 using preproduction Apple Watch Ultra 3; all devices tested with prerelease software. Battery life varies by use, configuration, cellular network, signal strength, and many other factors; actual results will vary.
Charge
About 45 minutes to 80%
About 75 minutes to 100%
Charge times are from 0–80% and 0–100% using the included Apple Watch Magnetic Fast Charger to USB-C Cable. Testing conducted by Apple in July and August 2025 using preproduction Apple Watch Ultra 3 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.
Charge for 15 minutes
15 minutes of charging for up to 12 hours of battery life
Testing conducted by Apple in July and August 2025 using preproduction Apple Watch Ultra 3 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.
Charge for Sleep Tracking
5 minutes of charging for up to 8 hours of Sleep Tracking
Testing conducted by Apple in July and August 2025 using preproduction Apple Watch Ultra 3 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.
Apple Watch Series 11 Battery Information
Apple Watch Series 11 is the ultimate device for a healthy life that can last up to 24 hours without needing to charge, including 18 hours of normal daily use and 6 hours of sleep tracking. An 18-hour day factors in activities like doing a 60-minute workout, using apps, receiving notifications, and checking the time.
Apple Watch All-Day Battery Life testing was conducted by Apple in July and August 2025 using preproduction Apple Watch Series 11 (GPS) and Apple Watch Series 11 (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 24 hours
Up to 38 hours in Low Power Mode
All-day battery life including sleep tracking is based on the following use: 300 time checks, 90 notifications, 15 minutes of app use, a 60-minute workout with music playback from Apple Watch via Bluetooth, and 6 hours of sleep tracking over the course of 24 hours; Apple Watch Series 11 (GPS) usage includes connection to iPhone via Bluetooth during the entire 24-hour test; Apple Watch Series 11 (GPS + Cellular) usage includes a total of 4 hours of cellular connection and 20 hours of connection to iPhone via Bluetooth over the course of 24 hours. Battery life in Low Power Mode including sleep tracking is based on the following use: 530 time checks, 160 notifications, 26 minutes of app use, a 60-minute workout with music playback from Apple Watch via Bluetooth, and 6 hours of sleep tracking over the course of 38 hours; Apple Watch Series 11 (GPS) usage includes connection to iPhone via Bluetooth during the entire 38-hour test; Apple Watch Series 11 (GPS + Cellular) usage includes on-demand cellular connection and 30 hours of connection to iPhone via Bluetooth over the course of 38 hours. Testing conducted by Apple in July and August 2025 using preproduction Apple Watch Series 11 (GPS) and Apple Watch Series 11 (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 11 hours playback from Apple Watch storage
Tested with music playback from Apple Watch storage via Bluetooth. Testing conducted by Apple in July and August 2025 using preproduction Apple Watch Series 11 (GPS) and Apple Watch Series 11 (GPS + Cellular); all devices tested with prerelease software. Battery life varies by use, configuration, cellular network, signal strength, and many other factors; actual results will vary.
Workout
Up to 8 hours outdoor workout with GPS
Tested without iPhone and with heart rate sensor on during workout sessions. Testing conducted by Apple in July and August 2025 using preproduction Apple Watch Series 11 (GPS) and Apple Watch Series 11 (GPS + Cellular); all devices tested with prerelease software. Battery life varies by use, configuration, cellular network, signal strength, and many other factors; actual results will vary.
Charge
About 30 minutes to 80%
About 1 hour to 100%
Charge times are from 0–80% and 0–100% using the included Apple Watch Magnetic Fast Charger to USB-C Cable. Testing conducted by Apple in July and August 2025 using preproduction Apple Watch Series 11 (GPS) and Apple Watch Series 11 (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). Fast-charge testing conducted with drained Apple Watch 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 will vary.
Charge for 15 minutes
15 minutes of charging for up to 8 hours of battery life
Testing conducted by Apple in July and August 2025 using preproduction Apple Watch Series 11 (GPS) and Apple Watch Series 11 (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.
Charge for Sleep Tracking
5 minutes of charging for up to 8 hours of Sleep Tracking
Testing conducted by Apple in July and August 2025 using preproduction Apple Watch Series 11 (GPS) and Apple Watch Series 11 (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.
Apple Watch SE 3 Battery Information
Apple Watch SE 3 has all-day 18-hour battery life. Starting with a fully charged battery in the morning, it can last up to 18 hours, factoring in activities like doing a 60-minute workout, using apps, receiving notifications, and checking the time. 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 July and August 2025 using preproduction Apple Watch SE 3 (GPS) and Apple Watch SE 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
Up to 32 hours in Low Power Mode
All-day battery life is based on the following use: 300 time checks, 90 notifications, 15 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 SE 3 (GPS) usage includes connection to iPhone via Bluetooth during the entire 18-hour test; Apple Watch SE 3 (GPS + Cellular) usage includes a total of 4 hours of cellular connection and 14 hours of connection to iPhone via Bluetooth over the course of 18 hours. Battery life in Low Power Mode including sleep tracking is based on the following use: 430 time checks, 130 notifications, 20 minutes of app use, a 60-minute workout with music playback from Apple Watch via Bluetooth, and 6 hours of sleep tracking over the course of 32 hours; Apple Watch SE 3 (GPS) usage includes connection to iPhone via Bluetooth during the entire 32-hour test; Apple Watch SE 3 (GPS + Cellular) usage includes on-demand cellular connection and 24 hours of connection to iPhone via Bluetooth over the course of 32 hours. Testing conducted by Apple in July and August 2025 using preproduction Apple Watch SE 3 (GPS) and Apple Watch SE 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.
Apple Watch For Your Kids Battery Life
Up to 16 hours
Apple Watch For Your Kids battery life is based on the following use: 80 time checks, 50 notifications, 22 minutes of app use, a 5-minute phone call, and a 30-minute workout with music playback from Apple Watch via Bluetooth, over the course of 16 hours with cellular connection and Find My location sharing enabled. Testing conducted by Apple in July and August 2025 using preproduction Apple Watch SE 3 (GPS + Cellular); 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
Tested with music playback from Apple Watch storage via Bluetooth. Testing conducted by Apple in July and August 2025 using preproduction Apple Watch SE 3 (GPS) and Apple Watch SE 3 (GPS + Cellular); all devices tested with prerelease software. Battery life varies by use, configuration, cellular network, signal strength, and many other factors; actual results will vary.
Workout
Up to 7 hours outdoor workout with full GPS and heart rate readings
Tested without iPhone and with heart rate sensor on during workout sessions. Testing conducted by Apple in July and August 2025 using preproduction Apple Watch SE 3 (GPS) and Apple Watch SE 3 (GPS + Cellular); all devices tested with prerelease software. Battery life varies by use, configuration, cellular network, signal strength, and many other factors; actual results will vary.
Charge
About 45 minutes to 80%
About 75 minutes to 100%
Charge times are from 0–80% and 0–100% using the included Apple Watch Magnetic Fast Charger to USB-C Cable. Testing conducted by Apple in July and August 2025 using preproduction Apple Watch SE 3 (GPS) and Apple Watch SE 3 (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). Fast-charge testing conducted with drained Apple Watch 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 will vary.
Charges up to 2x faster
Apple Watch SE 3 charges up to 2x faster than Apple Watch SE 2
Testing 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.
Charge for 15 minutes
15 minutes of charging for up to 8 hours of battery life
Testing conducted by Apple in July and August 2025 using preproduction Apple Watch SE 3 (GPS) and Apple Watch SE 3 (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.
Charge for Sleep Tracking
8 minutes of charging for up to 8 hours of Sleep Tracking
Testing conducted by Apple in July and August 2025 using preproduction Apple Watch SE 3 (GPS) and Apple Watch SE 3 (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.