Main
Model
Price
Advantages
launch
Announced
Status
platform
OS
Chipset
CPU
GPU
camera
Rear
Front
Video
Features
display
Size
Resolution
Technology
Protection
Multitouch
battery
General
body
Dimensions
Weight
SIM card
Miscellaneous
Colors
memory
Internal Storage & RAM
Card slot
comms
WLAN
Bluetooth
GPS
NFC
Radio
USB
features
Sensors
Messaging
Browser
sound
3.5mm jack
network
Technology
2G bands
3G bands
4G bands
Speed
GPRS
EDGE
Videos
Summary
The P20 has better graphics processor Mali-G72 MP12 thanks to which you will be able to play more number of the latest games.
The P20 has 4K UHD (1080 x 2244 pixels) display resolution with 429 ppi pixel density that is more high than the Oppo A7 2K HD (720 x 1520 pixels) display resolution with 271 ppi pixel density. It makes this phone a better choice for watching movies. The P20 smartphone is easier to carry as it has smaller dimensions than the A7: 149.1 x 70.8 x 7.7 mm versus 155.9 x 75.4 x 8.1 mm. The P20 cell phone weight 165g that is 3g lighter in compare with the weight of the Oppo A7.
The A7 device has a memory card slot. This is a pleasant pros: the owner can easily expand internal storage and transfer files. The A7 has a better battery life as it is produced with 4230mah battery that is 830mah bigger compared to the P20 cell. That's mean this phone can be used for a longer time without charging.
Considering the above differences the P20 will become the best choice. Check the lowest price on Amazon.