you can compare the these parameters of the two products.
OPPO R7
• splay Resolution 1920x1080
• Screen Size 6.0 inches
• CPU eight Core
• Feature MP3 , Message , Bluetooth , Touchscreen , Wi-Fi , Email , Memory Card Slots , Video Player , Gravity Response , Front Camera , Multi Touch , Webcams , G Sensor , Camera , Phone Call , FM , Ultra Slim , Dual Cameras , GPS
• Operation System Android
• Language Chinese(Traditional) , English , French , German , Japanese , Italian , Portuguese , Polish , Russian , Spanish , Chinese(Simplified)
• Network Communication Wifi , Built-in 3G , 4G LTE
• Capacity 32G
• RAM 3G
• Cellular WCDMA , LTE , GSM
• SIM Card Quantity Single SIM Card
• Rear camera:13 million pixels
• Front-facing camera 8million pixels
Price:630 doller(amazon)
Special ability: quick charge
(ASUS)ZenFone 2
• splay Resolution 1920x1080
• Screen Size 5.5 inches
• CPU Quad Core
• Feature MP3 , Message , Bluetooth , Touchscreen , Wi-Fi , Email , Memory Card Slots , Video Player , Gravity Response , Front Camera , Multi Touch , Webcams , G Sensor , Camera , Phone Call , FM , Ultra Slim , Dual Cameras , GPS
• Design Bar
• Operation System Android
• Language Chinese(Traditional) , English , French , German , Japanese , Italian , Portuguese , Polish , Russian , Spanish , Chinese(Simplified)
• Network Communication Wifi , Built-in 3G , 4G LTE
• Micro SD
• ROM 16G
• RAM 4G
• Cellular WCDMA , LTE , GSM
• SIM Card Quantity Single SIM Card
• Rear camera:13 million pixels
• Front-facing camera 5million pixels
Price:$299
After comparation ,ypu can see that oppo r7 ,have 8core,so it can operate more quickly and smoothly. front-facing camera pixels is higher ,so the photo is more clear.but in my opinion,it is not important. and oppo has a special ability. it can be fully charged in 5 minite, but the life cycle of charge is shorter. oppo r7 also has a fashionable desige. if you want be a fashionable man which is different with the people use iphone,you can use it.