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

SAMSUNG GALAXY S8 PLUS

SAMSUNG GALAXY S8 PLUS

Specification
Technology
GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 20(800), 28(700)
Speed HSPA 42.2/5.76 Mbps, LTE-A (4CA) Cat16 1024/150 Mbps
GPRS Yes
EDGE Yes
Launch
Announced 2017, March
Status Available. Released 2017, April
Body
Dimensions
159.5 x 73.4 x 8.1 mm (6.28 x 2.89 x 0.32 in)
Weight
173 g (6.10 oz)
Build
Corning Gorilla Glass 5 back panel
SIM
Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)
- Samsung Pay (Visa, MasterCard certified)
- IP68 certified - dust/water proof over 1.5 meter and 30 minutes
Display
Type Super AMOLED capacitive touchscreen, 16M colors
Size 6.2 inches (~84.0% screen-to-body ratio)
Resolution
1440 x 2960 pixels (~529 ppi pixel density)
Multitouch Yes
Protection
Corning Gorilla Glass 5
- 3D Touch (home button only)
- Always-on display
Platform
OS Android 7.0 (Nougat)
Chipset Exynos 8895 Octa - EMEA
Qualcomm MSM8998 Snapdragon 835 - USA & China
CPU
Octa-core (4x2.3 GHz & 4x1.7 GHz) - EMEA
Octa-core (4x2.35 GHz Kryo & 4x1.9 GHz Kryo) - USA & China
GPU
Mali-G71 MP20 - EMEA
Adreno 540 - USA & China
Memory
Card slot microSD, up to 256 GB (uses SIM 2 slot) - dual SIM model only
Internal 64 GB, 4 GB RAM or 128 GB, 6 GB RAM
Camera
Primary 12 MP, f/1.7, 26mm, phase detection autofocus, OIS, LED flash
Features
1/2.5" sensor size, 1.4 µm pixel size, geo-tagging, simultaneous 4K video and 9MP image recording, touch focus, face/smile detection, Auto HDR, panorama
Video 2160p@30fps, 1080p@60fps, HDR, dual-video rec.
Secondary 8 MP, f/1.7, autofocus, 1440p@30fps, dual video call, Auto HDR
Sound
Alert types Vibration; MP3, WAV ringtones
Loudspeaker Yes
3.5mm jack Yes
- 32-bit/384kHz audio
- Active noise cancellation with dedicated mic
Comms
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth 5.0, A2DP, LE, aptX
GPS Yes, with A-GPS, GLONASS, BDS, GALILEO
NFC Yes
Radio No
USB 3.1, Type-C 1.0 reversible connector
Features
Sensors Iris scanner, fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer, heart rate, SpO2
Messaging SMS(threaded view), MMS, Email, Push Mail, IM
Browser HTML5
Java No
- Samsung DeX (desktop experience support)
- Fast battery charging (Quick Charge 2.0)
- Qi/PMA wireless charging (market dependent)
- ANT+ support
- Bixby natural language commands and dictation
- MP4/DivX/XviD/H.265 player
- MP3/WAV/eAAC+/FLAC player
- Photo/video editor
- Document editor
Battery
Non-removable Li-Ion 3500 mAh battery
Tests
Performance Basemark OS II: 3401 / Basemark OS II 2.0: 3298
Basemark X: 43862
Display Contrast ratio: Infinite (nominal), 4.658(sunlight)
Camera Photo / Video
Loudspeaker Voice 68dB / Noise 69dB / Ring 71dB
Audio quality Noise -92.2dB / Crosstalk -93.3dB
Battery life
Endurance rating 88h

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