Apple Watch Series 7 (45mm) vs Apple Watch Series 2 (38mm)

Apple Watch Series 7 (45mm) $429
Apple Watch Series 2 (38mm) $399
Base Price (MSRP)
$429
Base Price (MSRP)
$399
CPU
S7
CPU
S2
GPU
S7
GPU
PowerVR GX6240 S2
Memory
1GB
Memory
512MB
Storage
32GB
Storage
16GB
Display
1.9" LTPO OLED 484x396 Touch
Display
1.3" OLED 340x272 Touch
S7
2 Cores
2 Threads
1.8GHz Clock
S2
2 Cores
2 Threads
0.52GHz Clock
N/A
0%
N/A
0%
N/A
0%
N/A
0%
S7
128 Shaders
675MHz
Shared Memory
PowerVR GX6240 S2
64 Shaders
450MHz
Shared Memory
N/A
0%
FP32 0.17 TFLOPS
0%
N/A
0%
FP32 0.06 TFLOPS
0%
1GB
512MB
Unknown # Tabs
0%
Unknown # Tabs
0%
32GB
16GB
Unknown # min 4K Video
0%
Unknown # min 4K Video
0%
No Optical Drive
No Optical Drive
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1.9"
LTPO OLED
Always On
1.3"
OLED
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1,000 Nits Peak
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1,000 Nits Peak
60Hz
Variable
60Hz
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484x396
0.2 Million Pixels
329 PPI
340x272
0.1 Million Pixels
326 PPI
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1,000,000:1 Contrast
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1,000,000:1 Contrast
Touch
Capacitive
Touch
Capacitive
No Cameras
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No Cameras
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Not Included
Not Included
Not Included
Not Included
Not Included
Not Included
Not Included
Not Included
No Biometrics
No Biometrics
1
1
1
1
No Cellular
Cellular
No Cellular
Wi-Fi 4E (802.11n)
1 Stream
Up to 150Mbps
Wi-Fi 4 (802.11n)
1 Stream
Up to 72Mbps
Bluetooth 5.0
Bluetooth 4.0
Motion
Accelerometer
Gyroscope
Altimeter
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Motion
Accelerometer
Gyroscope
Altimeter
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Health
Optical Heart
Electrical Heart
Blood Oxygen
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Health
Optical Heart
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Utility
Proximity
Ambient Light
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Utility
Proximity
Ambient Light
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Communication
NFC
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Ultra-Wideband Chip
Communication
NFC
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Location
GPS
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GLONASS
Galileo
QZSS
Beidou
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Compass
Location
GPS
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GLONASS
Galileo
QZSS
Beidou
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Integrated Chipset
Integrated Chipset
No Ports
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No Ports
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External
External
Not Included
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Not Included
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1.2Wh
309mAh
3.85V
Lithium-Ion
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1Wh
273mAh
3.77V
Lithium-Ion
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Up to 18 Hours
Up to 18 Hours
Charge Time
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Up to 80% in 45 min
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watchOS
watchOS
Build Material
Aluminum, Glass
IP6X
Up to 50m Water Resistant
Build Material
Aluminum, Glass
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Up to 50m Water Resistant
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Proprietary Wireless Charging
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Proprietary Wireless Charging
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Height
45 mm (1.8 in)
Width
38 mm (1.5 in)
Depth
10.7 mm (0.4 in)
Volume
0.018 L
Height
38.6 mm (1.5 in)
Width
33.3 mm (1.3 in)
Depth
11.4 mm (0.4 in)
Volume
0.015 L
Weight
39 g (1.38 oz)
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Weight
30 g (1.06 oz)
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CPU
Not Upgradable
CPU
Not Upgradable
GPU
Not Upgradable
GPU
Not Upgradable
Memory
Not Upgradable
Memory
Not Upgradable
Storage
Not Upgradable
Storage
Not Upgradable
Wi-Fi
Not Upgradable
Wi-Fi
Not Upgradable
Motherboard
Not Upgradable
Motherboard
Not Upgradable
Power Supply
Not Upgradable
Power Supply
Not Upgradable
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Change Comparison