The game controller is very comfortable for the users to play. Game controller has been improvised from wired to wireless and Bluetooth. It is definitely needed to get the most functionality. The best game controllers for android among all are listed below.
Mad Catz C.T.R.L.R.
Mad Catz C.T.R.L.R. made gaming peripherals for all types of platforms for decades. It has a complete set of buttons with D-Pad, dual thumbsticks, a back button, a start button, four action buttons, left and right trigger and bumper buttons up top, and a set of dedicated media button across the top front. This can easily manage playback of media on your Android device.
NVIDIA SHIELD Controller
NVIDIA SHIELD is a battle-tested option. This can also be plugged into a PC and used as a game controller for PC games. It consists of the standard D-Pad, dual joysticks, four action buttons, and left and right trigger and bumper buttons. It also contains a touchpad at the bottom along with up and down volume controls which can be used for in-game chat on supported games when you have a headset plugged into the controller, and there are dedicated buttons on the top for your home, back, and resents keys.
SteelSeries Stratus XL
SteelSeries Stratus XL has been designed specifically for Android devices as well as Windows PCs. It also works with Oculus Rift and Gear VR. It consists of a D-Pad, clickable dual joysticks with a rubberized top for comfort, four action buttons, and it has a home and back buttons for easy navigation of your Android device. It has no built-in battery instead it has 2 AA batteries with a 40-hour battery life.
Razel Serval is an excellent gaming accessory company. Their Serval controller for Android and PC is no different. Despite usual buttons, it has a home and back button, and an adjustable game clip so you can play games on the go.
Satechi Bluetooth Wireless Gamepad
Satechi is a full-sized controller yet still a little more compact. It has a total of 14 buttons with D-Pad, dual joysticks, four action buttons, and the left and right bumper and trigger buttons up top. It also has a start and select button. The 220 mAh battery is used which is rechargeable.