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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Sunday, May 3, 2020

Apple iPhone Ten


Apple iPhone 8 / iPhone X Specs, Price & Release Date

2017, September 12
Available. Released 2017, November 3


143.6 x 70.9 x 7.7 mm (5.65 x 2.79 x 0.30 in)
174 g (6.14 oz)
Glass front (Gorilla Glass), glass back (Gorilla Glass), stainless steel frame
Nano-SIM

IP67 dust/water resistant (up to 1m for 30 mins)
Apple Pay (Visa, MasterCard, AMEX certified)

Super Retina OLED capacitive touchscreen, 16M colors
5.8 inches, 84.4 cm2 (~82.9% screen-to-body ratio)
1125 x 2436 pixels, 19.5:9 ratio (~458 ppi density)
Scratch-resistant glass, oleophobic coating

625 nits max brightness (advertised)
Dolby Vision
HDR10
Wide color gamut
3D Touch
True-tone
120Hz touch-sensing

iOS 11.1.1, upgradable to iOS 13.4
Apple A11 Bionic (10 nm)
Hexa-core 2.39 GHz (2x Monsoon + 4x Mistral)
Apple GPU (three-core graphics)

No
64GB 3GB RAM, 256GB 3GB RAM

NVMe

12 MP, f/1.8, 28mm (wide), 1/3", 1.22µm, dual pixel PDAF, OIS
12 MP, f/2.4, 52mm (telephoto), 1/3.4", 1.0µm, PDAF, OIS, 2x optical zoom
Quad-LED dual-tone flash, HDR (photo/panorama), panorama, HDR
2160p@24/30/60fps, 1080p@30/60/120/240fps

7 MP, f/2.2, 32mm (standard)
SL 3D, (depth/biometrics sensor)
HDR
1080p@30fps

Yes, with stereo speakers
No

Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot
5.0, A2DP, LE
Yes, with A-GPS, GLONASS, GALILEO, QZSS
Yes
No
2.0, proprietary reversible connector

Face ID, accelerometer, gyro, proximity, compass, barometer

Siri natural language commands and dictation


Non-removable Li-Ion 2716 mAh battery (10.35 Wh)
Fast charging 15W, 50% in 30 min (advertised)
USB Power Delivery 2.0
Qi wireless charging
Up to 21 h (3G)
Up to 60 h

Space Gray, Silver
A1865, A1901, A1902, A1903
1.09 W/kg (head)     1.17 W/kg (body)    

AnTuTu: 233100 (v7)
GeekBench: 10215 (v4.4)
GFXBench: 28fps (ES 3.1 onscreen)
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