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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Tuesday, May 22, 2018

APPLE IPHONE 8 RED

APPLE IPHONE 8 RED


Network Technology
GSM / HSPA / LTE


Launch
Announced 2018, April
Body Dimensions
138.4 x 67.3 x 7.3 mm (5.45 x 2.65 x 0.29 in)
Weight
148 g (5.22 oz)

Build
Front/back glass & aluminum frame

SIM
Nano-SIM
- IP67 certified - dust and water resistant
- Water resistant up to 1 meter and 30 minutes
- Apple Pay (Visa, MasterCard, AMEX certified)
Display
Type LED-backlit IPS LCD, capacitive touchscreen, 16M colors
Size 4.7 inches, 60.9 cm2 (~65.4% screen-to-body ratio)
Resolution
750 x 1334 pixels, 16:9 ratio (~326 ppi density)
Multitouch Yes
Protection
Ion-strengthened glass, oleophobic coating
- Wide color gamut display
- 3D Touch display & home button
- True-tone display
Platform
OS iOS 11, upgradable to iOS 11.1
Chipset Apple A11 Bionic
CPU Hexa-core (2x Monsoon + 4x Mistral)
GPU Apple GPU (three-core graphics)
Memory
Card slot No
Internal 64/256 GB, 2 GB RAM
Camera
Primary 12 MP, f/1.8, 28mm, phase detection autofocus, OIS, quad-LED (dual tone) flash
Features
Geo-tagging, simultaneous 4K video and 8MP image recording, touch focus, face/smile detection, HDR (photo/panorama)
Video 2160p@24/30/60fps, 1080p@30/60/120/240fps
Secondary 7 MP, f/2.2, 1080p@30fps, 720p@240fps, face detection, HDR, panorama
Sound
Alert types Vibration, proprietary ringtones
Loudspeaker Yes, with stereo speakers
3.5mm jack No
- Active noise cancellation with dedicated mic
- Lightning to 3.5 mm headphone jack adapter
Comms
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot
Bluetooth 5.0, A2DP, LE
GPS Yes, with A-GPS, GLONASS, GALILEO, QZSS
NFC Yes (Apple Pay only)
Radio No
USB 2.0, proprietary reversible connector
Features
Sensors Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer
Messaging iMessage, SMS (threaded view), MMS, Email, Push Email
Browser HTML5 (Safari)
Java No
- Fast battery charging: 50% in 30 min
- Qi wireless charging
- Siri natural language commands and dictation
- iCloud cloud service
- MP3/WAV/AAX+/AIFF/Apple Lossless player
- MP4/H.265 player
- Audio/video/photo editor
- Document editor
Battery
Non-removable Li-Ion 1821 mAh battery (6.96 Wh)
Talk time Up to 14 h (3G)
Music play Up to 40 h

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