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Apple iphone 7 256GB vs Vivo Y55

2G Network GSM 850 / 900 / 1800 / 1900 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network HSDPA 850 / 900 / 1700 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100  
4G Network LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700) LTE band 1(2100), 3(1800), 7(2600), 8(900), 20(800)  
Dimensions 138.3 x 67.1 x 7.1 mm 160.80 x 73.79 x 8.42mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)  
Weight 138g 182 g  
Display Type LED-backlit IPS LCD, capacitive touchscreen, 16M colors, Ion-strengthened glass, oleophobic coating, Wide Gamut display, 3D Touch display + home button, Display Zoom AMOLED Capacitive Touchscreen, Multitouch  
Display Size 4.7 inches, 750 x 1334 pixels (~326 ppi pixel density) 6.44 Inches   1080 x 2400 Pixels (~409 PPI)  
Multitouch Yes
Memory 256GB built-in 128GB Built-in, 8GB RAM  
Card slot microSD Card, (supports up to 1TB)  
RAM 2GB RAM
GPRS Yes Yes
WLAN WLAN (Wi-Fi 802.11 a/b/g/n/ac Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot  
BlueTooth Bluetooth v4.2 with A2DP v5.1 with A2DP, LE  
USB USB (v2.0 USB Type-C, USB On-The-Go  
NFC Yes  
GPS Yes Yes + A-GPS support, & GLONASS, BDS, GALILEO, QZSS  
Main Camera 12 MP, f/2.2, 29mm, phase detection autofocus, dual-LED + dual tone) flash, 1/3" sensor size, 1.22 ?m pixel size, geo-tagging, simultaneous 4K video and 8MP image recording, touch focus, face /smile detection, HDR (photo + panorama), Video (2160p@30fps, 1080p@60fps,1080p@120fps, 720p@240fps), Triple Camera: 50 MP, f/1.8, 26mm (wide), PDAF + 2 MP, f/2.4, (macro) + 2 MP, f/2.4, (depth), Dual LED Flash   Night, Portrait, Photo, Double Exposure, Live Photo, Panorama, Slow Motion, Time-Lapse, Pro, Video  
Front Camera 7 MP, f/2.2, 1080p@30fps, 720p@240fps, face detection, HDR, panorama 16 MP  
OS iOS 10 Android 12 OS  
Chipset Apple A10 Fusion GPU: Qualcomm Snapdragon 680 4G  
Processor Quad-core Octa core (4 x 2.4 GHz Kryo 265 + 4 x 1.9 GHz Kryo 265)  
GPU GPU: (six-core graphics) Adreno 610  
Sensors Accelerometer, gyro, proximity, compass, barometer, Fingerprint Accelerometer, Compass, Fingerprint (side mounted), Gyro, Proximity  
Browser HTML5 (safari) HTML5  
Sound 3.5 mm to lightning headphone adapter incl, MP3/WAV/AAX+/AIFF/Apple Lossless player, MP4/H.264 player, Image editor, Games (built-in + downloadable) 3.5mm Audio Jack, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Speaker Phone  
Colors Jet Black, Black, Silver, Gold, Rose Gold Midnight Galaxy, Ice Dawn  
Battery Music-Play up to 40 hrs Non-removable Li-Po battery (Li-Po Non removable), 5000 mAh   - Fast charging 44W  
TalkTime Talk-time up to 14 hrs
Misc GPS + A-GPS support and GLONASS, Nano-SIM, Active noise cancellation with dedicated mic, Siri natural language commands and dictation, iCloud cloud service, Google Maps, Audio/video/photo editor, Apple Pay + Visa, MasterCard, AMEX certified), Waterproof, Voice memo/command/dial, Document editor, Speakerphone SMS(threaded view), MMS, Email, Push Mail, IM   Glass front, Plastic frame, Plastic back, Active noise cancellation with dedicated mic, Document viewer, Photo/video editor