340x272 pixels
No video recorder
Apple S1
5W
No cellular connectivity
2014, September. Released 2015, April
Disconnected
38.6 x 33.3 x 10.5 mm (1.52 x 1.31 x 0.41 in)
25 g body (2.19 oz)
Glass front, composite plastic back, aluminum frame
SIM
No
IPX7 water resistant up to 1 meter and 30 minutes
Retina OLED, 450 nits (peak)
1.5 inches
340 x 272 pixels (~290 ppi density)
Ion-X strengthened glass
3D Touch display
watchOS 1.0, upgradable to watchOS 4.3.2
Apple S1 (28 nm)
520 MHz Cortex-A7
PowerVR SGX543
8GB 512MB RAM
Yes
Wi-Fi 802.11 b/g/n
4.0, LE
Accelerometer, gyro, heart rate
Natural language commands and dictation
Li-Ion 205 mAh (0.78 Wh), non-removable
Wireless
Silver/White, Orange, Blue; Gray/Black; Rose Gold/Lavender, Stone; Gold/White, Blue, Yellow, Apricot, Royal Blue, Pink/Royal Blue/Gold&Red/Black Woven Nylon
A1553
About 250 EUR
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