- Apple Watch Edition Series 3
 
- Single Sim, 4G GSM / HSDPA / LTE
 - 312 x 390 pixels
 - 11.4 mm Thickness
 - watchOS 4.0, 16 GB, 768 MB RAM No
 - Dual-core
 - Wi-Fi, Bluetooth, USB, NFC, Edge
 - GPS
 
Cell Phone,In the 1990s, the 'second generation' mobile phone systems emerged. Two systems competed for supremacy in the global market: the European developed GSM standard and the U.S. developed CDMA standard. These differed from the previous generation by using digital instead of analog transmission, and also fast out-of-band phone-to-network signaling. The rise in mobile phone usage as a result of 2G was explosive and this era also saw the advent of prepaid mobile phones.
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