Compare Apple Watch
Compare Apple Watch models
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The most advanced Apple Watch yet, with a blood oxygen sensor and app1 and the Always-On Retina display. | Features the same larger display size as Series 6, fall detection, a compass, and always-on altimeter. | The core fitness, health, and connectivity features of Apple Watch. | GPS | GPS | GPS |
Quick Look
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Key Differences
Display | ||
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Always-On Retina display The display never sleeps, so you can always see the time and information that's most important to you. The viewing area stretches deep into the rounded corners and is over 30 percent larger than the Apple Watch Series 3 display. | Retina display The same larger display size as Series 6, so you can see more and use all the latest watch faces and complications. Just raise your wrist and the display instantly comes to life. | Retina display Just raise your wrist and the display instantly comes to life. |
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44mm case 40mm case | 44mm case 40mm case | 42mm case 38mm case |
Materials and Finishes
Aluminum The Apple Watch Series 6 case is 11 percent thinner than the Apple Watch Series 3 case and is available in 100 percent recycled aluminum. | Aluminum Featuring the same case size as Series 6 and available in 100 percent recycled aluminum. | Aluminum Available in 100 percent recycled aluminum. |
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Health
Blood Oxygen app1 High and low heart rate notifications Series 6 has the most advanced health and wellness features ever in an Apple Watch. You can measure your blood oxygen levels,1 be alerted if it detects unusually high or low heart rates, and even measure your current heart rate. | — High and low heart rate notifications Apple Watch SE can alert you if it detects unusually high or low heart rates, as well as measure your current heart rate. | — High and low heart rate notifications Apple Watch Series 3 can alert you if it detects unusually high or low heart rates, as well as measure your current heart rate. |
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Safety and Emergency
Emergency SOS3 Fall detection Noise monitoring With Emergency SOS, you can quickly call for help and alert your emergency contacts.3 Apple Watch Series 6 can also detect if you've taken a hard fall, then automatically call emergency services for you. The Noise app alerts you when decibels reach levels that could damage your hearing. | Emergency SOS3 Fall detection Noise monitoring With the same safety and emergency features as Series 6, you're never too far away from help if you need it. The Noise app alerts you when decibels reach levels that could damage your hearing. | Emergency SOS3 — — You can quickly call for help and alert your emergency contacts if you need to.3 |
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Technology
Blood Oxygen sensor1 Electrical heart sensor Optical heart sensor Dual-core S6 SiP Digital Crown with haptic feedback GPS Compass Always-On altimeter Second-generation speaker and mic The back crystal of Apple Watch Series 6 features four clusters of green, red, and infrared LEDs and four photodiodes used to measure blood oxygen levels with the Blood Oxygen app.1 It has an optical heart sensor for measuring your heart rate. The Digital Crown provides haptic feedback when you turn it. The S6 SiP with 64-bit dual-core processor is up to 20 percent faster than the S5 in the Apple Watch Series 5. The Always-On Altimeter detects your elevation in real time. | — — Optical heart sensor Dual-core S6 SiP Digital Crown with haptic feedback GPS Compass Always-On altimeter Second-generation speaker and mic Apple Watch SE has an optical heart sensor for measuring your heart rate. The Digital Crown provides haptic feedback when you turn it. The S5 SiP with 64-bit dual-core processor is up to two times faster than the S3 in Apple Watch Series 3. The Always-On Altimeter detects your elevation in real time. | — — Optical heart sensor Dual-core S6 SiP Digital Crown with haptic feedback GPS — Always-On altimeter Second-generation speaker and mic Apple Watch Series 3 includes an optical heart sensor for measuring your heart rate and GPS to provide location information. |
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Tech Specs
Finishes | ||
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GPS Aluminum available in silver, space gray, gold, blue and (PRODUCT)RED. | GPS Aluminum available in silver, space gray, and gold. | GPS Aluminum available in silver and space gray. |
Features | ||
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 GPS/GNSS | GPS/GNSS | GPS/GNSS |
 Compass | Compass | |
 Always-on Altimeter | Always-on Altimeter | Always-on Altimeter |
 Water resistant 50 meters2 | Water resistant 50 meters2 | Water resistant 50 meters2 |
 Blood oxygen sensor (Blood Oxygen app)1 | | |
 Second-generation optical heart sensor | Second-generation optical heart sensor | Optical heart sensor |
 Emergency SOS3 | Emergency SOS3 | Emergency SOS3 |
 Accelerometer up to 32 g-forces with fall detection | Accelerometer up to 32 g-forces with fall detection | Accelerometer up to 16 g-forces |
 Gyroscope | Gyroscope | Gyroscope |
 Ambient light sensor | Ambient light sensor | Ambient light sensor |
 Speaker 50 percent louder | Speaker 50 percent louder | Speaker |
 Microphone (enable Noise app) | Microphone (enable Noise app) | Microphone |
 GymKit | GymKit | GymKit |
 Capacity 32GB GPS | Capacity 32GB GPS |  Capacity 8GB GPS |
 Ceramic and sapphire crystal back GPS |  Ceramic and sapphire crystal back GPS | Composite back GPS |
Display | ||
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44mm 368 by 448 pixels 977 sq mm display area | 44mm 368 by 448 pixels 977 sq mm display area | 42mm 312 by 390 pixels 740 sq mm display area |
40mm 324 by 394 pixels 759 sq mm display area | 40mm 324 by 394 pixels 759 sq mm display area | 38mm 272 by 340 pixels 563 sq mm display area |
Always-On Retina LTPO OLED display 1000 nits brightness | Retina LTPO OLED display 1000 nits brightness | Retina OLED display 1000 nits brightness |
Chip | ||
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S6 SiP with 64-bit dual-processor Up to 20 percent faster than S5 | S5 SiP with 64-bit dual-processor Up to 2x faster than S3 | S3 SiP with dual-processor |
W3 Apple wireless chip | W3 Apple wireless chip | W2 Apple wireless chip |
U1 chip (Ultra Wideband) | | |
Connectivity | ||
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Wi-Fi 802.11b/g/n 2.4GHz and 5GHz | Wi-Fi 802.11b/g/n 2.4GHz | Wi-Fi 802.11b/g/n 2.4GHz |
Bluetooth 5.0 | Bluetooth 5.0 | Bluetooth 4.2 |
Power | ||
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Built-in rechargeable lithium-ion battery Up to 18 hours4 | Built-in rechargeable lithium-ion battery Up to 18 hours5 | Built-in rechargeable lithium-ion battery Up to 18 hours6 |
Magnetic charging cable | Magnetic charging cable | Magnetic charging cable |
There's an Apple Watch for everyone.
- Blood Oxygen app measurements are not intended for medical use, including self-diagnosis or consultation with a doctor, and are only designed for general fitness and wellness purposes.
- Apple Watch Series 6, Apple Watch SE, and Apple Watch Series 3 have a water resistance rating of 50 meters under ISO standard 22810:2010. This means that they may be used for shallow-water activities like swimming in a pool or ocean. However, they should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth.
- To use Emergency SOS, your iPhone needs to be nearby. If your iPhone isn't nearby, your Apple Watch needs to be connected to a known Wi-Fi network and you must set up Wi-Fi Calling.
- Apple Watch All-Day Battery Life testing was conducted by Apple in August 2020 using preproduction Apple Watch Series 6 (GPS) and Apple Watch Series 6 (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. See apple.com/batteries and apple.com/watch/battery.html for more information.
- Apple Watch All-Day Battery Life testing was conducted by Apple in August 2020 using preproduction Apple Watch SE (GPS) and Apple Watch SE (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. See apple.com/batteries and apple.com/watch/battery.html for more information.
- Apple Watch All-Day Battery Life testing was conducted by Apple in August 2018 using shipping Apple Watch Series 3 (GPS) 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. See apple.com/batteries and apple.com/watch/battery.html for more information.
Some bands sold separately
Apple Watch Series 6, Apple Watch SE and Apple Watch Series 3 require an iPhone 6s or later with iOS 14 or later.
Features are subject to change. Some features, applications, and services may not be available in all regions or all languages. See apple.com/watchos/feature-availability for complete list.