Review to Best phone IPhone 6S

Specifications

Display

• Type: LED-backlit IPS LCD, capacitive touchscreen, 16M colors
• Size: 4.7 inches (~65.6% screen-to-body ratio)
• Resolution: 75 x 1334 pixels (~326 ppi pixel density)
• Multitouch: Yes
• ProtectionIon-strengthened glass, oleophobic coating
•  - 3D Touch display
• - Display Zoom

Platform

• OS: iOS 9, upgradable to iOS 9..2
• Chipset: Apple A9
• CPU: Dual-core 1.84 GHz
• GPU: PowerVR GT76 (six-core graphics)

Memory

• Card slot: No
• Internal: 64GB, 2 GB RAM

Camera

• Primary: 12 MP, 432 x 324 pixels, phase detection autofocus, dual-LED (dual tone) flash, check quality
• Features: Geo-tagging, simultaneous 4K video and 8MP image recording, touch focus, face/smile detection, HDR (photo/panorama)
• Video: 216p@3fps, 18p@6fps,18p@12fps, 72p@24fps, check quality
• Secondary: 5 MP, 18p@3fps, 72p@24fps, face detection, HDR, panorama

Sound

• Alert types: Vibration, proprietary ringtones
• Loudspeaker: Yes
• 3.5mm jack: Yes

Comms

• WLAN: Wi-Fi 82.11 a/b/g/n/ac, dual-band, hotspot
• Bluetooth: v4.2, A2DP, LE
• GPS: Yes, with A-GPS, GLONASS
• NFC: Yes (Apple Pay only)
• USB: v2., reversible connector

Features

• Sensors: Accelerometer, gyro, proximity, compass, barometer
• Messaging: iMessage, SMS (threaded view), MMS, Email, Push Email
• BrowserHTML5 (Safari)
•  Active noise cancellation with dedicated mic
• Siri natural language commands and dictation
• iCloud cloud service
• iCloud Keychain
• TV-out
• Maps
• Organizer
• Document editor
• Photo/video editor

Battery 

• Non-removable Li-Po 1715 mAh battery (6.9 Wh)
• Stand-by: Up to 24 h (3G)
• Talk time: Up to 14 h (3G)
• Music play: Up to 5 h