Yes, Oppo F3 have a Screen Mirroring feature. In fact, all the android are capable of screen mirroring. You and the other device must be connected to the same network. You can download an application from here( Play Store Screen Mirroring ) to assist you with screen mirroring. Alternatively, you need to download the specified application of the gadget, if any you are using.
You can see full specs of your device here: Oppo F3You can follow the video if required:
SAR Value (Head)1.225 Wkg@1g
SAR Value (Body)0.618 Wkg@1g
Gionee A1 vs Vivo V5s vs Oppo F3
Both the phones have their pros and cons, Iet's analyze both:-
Advantages of Gionee A1:-
1.Faster CPU:- Faster CPU means more smooth experience.
2.Supports FM Radio:-Listen to your favourite radio stations on your device. Enjoy music on the go with FM Radio.
3.Bigger Battery:-With more battery size, device's battery can generally last more time,
4.Better Screen Resolution:-More resolution means sharper and crisper screen.
5.Supports HD Video Recording:-HD Videos are of higher quality and they look great on big TV screen.
Advantages of OPPO F3:-
1.Has Dual Front Camera:-Dual front camera is useful for certain effects like blur, zoom and wide angle selfies.
Verdict - In my opinion, Gionee A1 is better overall performance and price ,if you need then you can go for OPPO F3:.
You can also compare these devices on 91mobiles