Which Apple Watch
The biggest, most advanced Always‑On Retina display. Measure your blood oxygen and take an ECG. With the most crack-resistant front crystal ever and dust resistance certification, it’s the most durable Apple Watch ever.
With essential features to help you stay connected, active, and healthy. Large Retina display. Fall detection.
The core fitness, health, and connectivity features
of Apple Watch.
case size
Most crack-resistant front crystal
Certified IP6x
dust resistant
case size
case size
Nearly 20% more screen area than Apple Watch SE
Over 50% more screen area than Series 3
Over 30% larger than Series 3
notification3
notification3
notification3
emergency calling5
emergency calling5
by 10.7mm (45mm)
by 10.7mm (44mm)
36.36 grams (GPS + Cellular)
by 11.4mm (42mm)
by 10.7mm (41mm)
by 10.7mm (40mm)
30.68 grams (GPS + Cellular)
by 11.4mm (38mm)
1143 sq mm display area
368 by 448 pixels
977 sq mm display area
740 sq mm display area
904 sq mm display area
324 by 394 pixels
759 sq mm display area
563 sq mm display area
-
GPS/GNSS, BeiDou
-
GPS/GNSS
-
GPS/GNSS
-
Compass
-
Compass
-
Compass not available
-
Always-on altimeter
-
Always-on altimeter
-
Altimeter
-
Blood oxygen sensor
(Blood Oxygen app)2 -
Blood oxygen sensor not available
-
Blood oxygen sensor not available
-
Electrical heart sensor
(ECG app)3 -
Electrical heart sensor not available
-
Electrical heart sensor not available
-
Third-generation optical heart sensor
-
Second-generation optical heart sensor
-
Optical heart sensor
-
International emergency calling5
-
International emergency calling5
-
International emergency calling not available
-
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
(enables Noise app) -
Microphone
(enables Noise app) -
Microphone
-
GymKit
-
GymKit
-
GymKit
-
Capacity 32GB
GPS + Cellular -
Capacity 32GB
GPS + Cellular -
32GB Capacity not available
-
Capacity 32GB
GPS -
Capacity 32GB
GPS -
Capacity 8GB
GPS
-
Ceramic and sapphire crystal back
GPS + Cellular
GPS -
Ceramic and sapphire crystal back
GPS + Cellular
GPS -
Composite back
GPS
Apple Watch models
Apple Watch Series 7
- 41mm or 45mm case; over 50 percent more screen area18
- Always-On Retina LTPO OLED display, 1000 nits
- Ion-X glass display on aluminum cases; sapphire crystal display on stainless steel and titanium cases
- GPS and GPS + Cellular models
- S7 SiP with 64-bit dual-core processor; W3 wireless chip; U1 chip (Ultra Wideband)13
- Digital Crown with haptic feedback
- Blood oxygen sensor; electrical heart sensor and third-generation optical heart sensor
- High and low heart rate notifications, irregular heart rhythm notification, and ECG app3
- International emergency calling,5 Emergency SOS,4 and fall detection
- Water resistant 50 meters1
- Dustproof (IP6X)
- Most crack-resistant front crystal
- LTE and UMTS,6 Wi-Fi, and Bluetooth 5.0
- GPS/GNSS, compass, and always-on altimeter
- 50 percent louder speaker18; built-in mic
- 32GB capacity
- Faster charge time
Apple Watch Series 6
- 40mm or 44mm case; over 30 percent larger display18
- Always-On Retina LTPO OLED display, 1000 nits
- Ion-X glass display on aluminum cases; sapphire crystal display on stainless steel and titanium cases
- GPS and GPS + Cellular models
- S6 SiP with 64-bit dual-core processor; W3 wireless chip; U1 chip (Ultra Wideband)13
- Digital Crown with haptic feedback
- Blood oxygen sensor; electrical heart sensor and third-generation optical heart sensor
- High and low heart rate notifications, irregular heart rhythm notification, and ECG app3
- International emergency calling,5 Emergency SOS,4 and fall detection
- Water resistant 50 meters1
- LTE and UMTS,6 Wi-Fi, and Bluetooth 5.0
- GPS/GNSS, compass, and always-on altimeter
- 50 percent louder speaker18; built-in mic
- 32GB capacity
Apple Watch SE
- 40mm or 44mm case; over 30 percent larger display18
- Retina LTPO OLED display, 1000 nits
- Ion-X glass display
- GPS and GPS + Cellular models
- S5 SiP with 64-bit dual-core processor; W3 wireless chip
- Digital Crown with haptic feedback
- Second-generation optical heart sensor
- High and low heart rate notifications and irregular heart rhythm notification3
- International emergency calling,5 Emergency SOS,4 and fall detection
- Water resistant 50 meters1
- LTE and UMTS,6 Wi-Fi, and Bluetooth 5.0
- GPS/GNSS, compass, and always-on altimeter
- 50 percent louder speaker18; built-in mic
- 32GB capacity
Apple Watch Series 5
- 40mm or 44mm case; over 30 percent larger display18
- Always-On Retina LTPO OLED display, 1000 nits
- Ion-X glass display on aluminum cases; sapphire crystal display on stainless steel, titanium, and ceramic cases
- GPS and GPS + Cellular models
- S5 SiP with 64-bit dual-core processor; W3 wireless chip
- Digital Crown with haptic feedback
- Electrical heart sensor and second-generation optical heart sensor
- High and low heart rate notifications, irregular heart rhythm notification, and ECG app3
- International emergency calling,5 Emergency SOS,4 and fall detection
- Water resistant 50 meters1
- LTE and UMTS,6 Wi-Fi, and Bluetooth 5.0
- GPS/GNSS, compass, and barometric altimeter
- 50 percent louder speaker18; built-in mic
- 32GB capacity
Apple Watch Series 4
- 40mm or 44mm case; over 30 percent larger display18
- Retina LTPO OLED display, 1000 nits
- Ion-X glass display on aluminum cases; sapphire crystal display on stainless steel cases
- GPS and GPS + Cellular models
- S4 SiP with 64-bit dual-core processor; W3 wireless chip
- Digital Crown with haptic feedback
- Electrical heart sensor and second-generation optical heart sensor
- High and low heart rate notifications, irregular heart rhythm notification, and ECG app3
- Emergency SOS4 and fall detection
- Water resistant 50 meters1
- LTE and UMTS,6 Wi-Fi, and Bluetooth 5.0
- GPS/GNSS and barometric altimeter
- 50 percent louder speaker18; built-in mic
- 16GB capacity
Apple Watch Series 3
- 38mm or 42mm case
- Second-generation Retina OLED display, 1000 nits
- Ion-X glass display on aluminum cases; sapphire crystal display on stainless steel and ceramic cases
- GPS model
- S3 SiP with dual-core processor; W2 wireless chip
- Digital Crown
- Optical heart sensor
- High and low heart rate notifications and irregular heart rhythm notification3
- Emergency SOS4
- Water resistant 50 meters1
- Wi-Fi and Bluetooth 4.2
- GPS/GNSS and barometric altimeter
- Built-in speaker and mic
- 8GB capacity
Apple Watch Series 2
- 38mm or 42mm case
- Second-generation Retina OLED display
- Ion-X glass display on aluminum cases; sapphire crystal display on stainless steel and ceramic cases
- GPS model
- S2 with dual-core processor
- Digital Crown
- Optical heart sensor
- High and low heart rate notifications and irregular heart rhythm notification3
- Water resistant 50 meters1
- Wi-Fi and Bluetooth 4.0
- GPS/GNSS
- Built-in speaker and mic
- 8GB capacity