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Brand | apple | apple | apple |
Model | apple Watch edition 38mm (1st gen) | apple Watch series 2 aluminum 38mm | apple Watch edition 42mm (1st gen) |
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Announced | 2014 September | 2016 September. Released 2016 December | 2014 September |
Status | Available. Released 2015 July | discontinued | Available. Released 2015 July |
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Device Body | | glass front | ceramic back | aluminum frame | |
Dimensions | 38.6 x 33.3 x 10.5 mm ( 1.52 x 1.31 x 0.41 in ) | 38.6 x 33.3 x 11.4 mm ( 1.52 x 1.31 x 0.45 in ) | 42 x 35.9 x 10.5 mm ( 1.65 x 1.41 x 0.41 in ) |
Weight in gram | 55 | 28.2 | 69 |
SIM card | No | No | No |
Water Resistance | | 50meterwater resistant | |
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Display type | OLED capacitive touchscreen | 16millioncolors | Retina OLED | 1000 Luminance units ( the peak ) | OLED capacitive touchscreen | 16millioncolors |
Display resolution | 340 x 272 pixels ( ~290 pixel per inch density ) | 340 x 272 pixels ( ~290 pixel per inch density ) | 390 x 312 pixels ( ~303 pixel per inch density ) |
Display size | 1.5 inches | 7.1 cm2 ( ~55.1% screen to body ratio ) | 1.5 inches | 1.65 inches | 8.6 cm2 ( ~56.8% screen to body ratio ) |
Display Protection | | ion-x strengthened glass | |
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Operating System | watchos 1.0 | upgradable to 4.3.2 | watchos 3.0 | upgradable to 6.2.8 | watchos 1.0 | upgradable to 4.3.2 |
CPU | 520 mhz cortex-a7 | Dual-core 780 mhz cortex-a7 | 520 mhz cortex-a7 |
Chipset | apple s1 ( 28 nm ) | apple s2 ( 16 nm ) | apple s1 ( 28 nm ) |
GPU | powervr sgx543 | powervr g6200 | powervr sgx543 |
Memory card | No | No | No |
Memory v1 | 8gb 512mb RAM | 8gb 512mb RAM | 8gb 512mb RAM |
Memory v2 | | | |
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Primary camera |
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Secondary camera |
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Loud speaker | Yes | Yes | Yes |
Audio jack | No | No | No |
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WLAN | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n |
Bluetooth | 4.0 | le | 4.0 | a2dp | 4.0 | le |
GPS | No | Yes with glonass | No |
NFC | Yes | Yes | Yes |
Radio | No | No | No |
USB | No | No | No |
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Sensors | accelerometer | gyroscope | heart rate | accelerometer | gyroscope | heart rate | accelerometer | gyroscope | heart rate |
Battery | Non-removable Li-lon 205 mAh battery ( 0.78watt per hour ) | Li-lon 273 mAh | Non-removable ( 1.03watt per hour ) | Non-removable Li-lon 250 mAh battery ( 0.94watt per hour ) |
Battery Charge | | wireless charging | |
Colors | white color gradations, gray color gradations | silver color gradations, gold, gold color gradations, gray | white color gradations, blue color gradations |
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Network technology | No cellular connectivity | No cellular connectivity | No cellular connectivity |
5G bands | | | |
Network speed | | | |
GPRS | No | No | No |
EDGE | No | No | No |
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Approx price |  110 GBP 144 EUR 1310 NOK 1400 SEK 8500 RUB 140 USD 710 BRL 200 AUD 180000 KRW 18000 JPY 190 SGD 600 MYR 500 AED 2300 ZAR
| - 360 GBP
- 428 EUR
- 4150 NOK
- 4400 SEK
- 26800 RUB
- 430 USD
- 2260 BRL
- 620 AUD
- 560000 KRW
- 58000 JPY
- 590 SGD
- 1910 MYR
- 1570 AED
- 7200 ZAR
| - 130 GBP
- 167 EUR
- 1540 NOK
- 1700 SEK
- 10000 RUB
- 160 USD
- 840 BRL
- 230 AUD
- 210000 KRW
- 22000 JPY
- 220 SGD
- 710 MYR
- 590 AED
- 2700 ZAR
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