Display
Size:
1.6 inches
1.5 inches
Resolution:
394 x 324 pixels, 325 PPI
340 x 272 pixels, 290 PPI
Technology:
OLED
OLED
Screen-to-body:
57.48 %
55.12 %
Peak brightness:
1000 cd/m2 (nit)
1000 cd/m2 (nit)
Features:
Pressure-sensitive, Scratch-resistant glass (Sapphire), Ambient light sensor
Pressure-sensitive, Ambient light sensor
Hardware
System chip:
Apple S4 (7 nm)
Apple S2 (16 nm)
Processor:
Dual-core
Dual-core, 780 MHz, Cortex-A7
GPU:
Apple G11M
PowerVR G6200
RAM:
1GB
0.5GB
Internal storage:
16GB, not expandable
8GB, not expandable
Device type:
Smartwatch
Smartwatch
OS:
watchOS (9.x, 8.x, 7.x, 6.x, 5)
watchOS (6.x, 5.1, 5, 4.x, 3.x)
Battery
Capacity:
225 mAh
273 mAh
Type:
Not user replaceable
Not user replaceable
Charging:
Magnetic charging
Magnetic charging
Design
Dimensions:
1.57 x 1.34 x 0.42 inches (40.0 x 34.0 x 10.7 mm)
1.52 x 1.31 x 0.45 inches (38.6 x 33.3 x 11.4 mm)
Weight:
1.06 oz (30.1 g)
1.48 oz (41.9 g)
Materials:
Frame: Aluminum
Frame: Stainless steel
Resistance:
Water
Water
Colors:
Silver, Black
Silver, Black
Cellular
Data Speed:
LTE, HSPA
SIM type:
eSIM
Multimedia
Speakers:
Loudspeaker
Loudspeaker
Additional microphone(s):
for Noise cancellation
Connectivity & Features
Bluetooth:
5.0
4.0
Wi-Fi:
802.11 b, g, n
802.11 b, g, n
Location:
Glonass, Galileo, QZSS
Glonass, Galileo
Sensors:
Accelerometer, Gyroscope, Heart rate, Barometer
Accelerometer, Gyroscope, Heart rate
Other:
NFC
NFC
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