A clamp-on controller turns your phone into a handheld console, with the screen sitting between the two halves and the controls plugged in over USB-C. They skip the Bluetooth lag and pair with a phone in seconds. This guide covers six, from a budget GameSir to Razer’s flagship, with standalone pads covered in a separate guide.
Before you buy
Check that your phone fits. Most of these stretch to around 170mm, and some go much wider, but a big phone in a thick case may not. Most connect over USB-C and pass power through, so you can charge while you play, but the port has to be on the bottom and in the right place.
Razer Kishi V3 Pro: The flagship
Razer’s Kishi V3 Pro is the one to buy if budget isn’t the issue, with an RRP of $149.99 and a more than 200-review, 4.2-star listing. According to Razer, it fits phones, iPad mini and Android tablets up to 8 inches with a telescopic bridge, and it has full-size TMR thumbsticks with swappable caps.
It has two mouse-click back buttons and claw-grip bumpers, and the Razer Nexus launcher handles games and recording. Razer says you can also use it wired with a PC, with the cable sold separately.
Key specs
- Fit: phones, iPad mini and Android tablets up to 8 inches
- Controls: full-size TMR thumbsticks with swappable caps, two back buttons, claw-grip bumpers
- Software: Razer Nexus game launcher
- Extras: wired PC mode and PC remote play (cable sold separately)
- RRP: $149.99
Razer Kishi Ultra: The cheaper Razer
The Kishi Ultra gives you Razer’s full-size design at less than half the price, at $69.85 on Amazon at the time of writing. Razer says it has a mecha-tactile 8-way D-pad, Razer Sensa HD haptics and Chroma RGB lighting.
It works with Android, iPhone 15 and 16, and iPad mini, per the listing, and the Nexus app launches games and handles remote play from a PC.
Key specs
- Fit: phones and tablets up to 8 inches
- Controls: mecha-tactile 8-way D-pad, Razer Sensa HD haptics, Chroma RGB
- Software: Razer Nexus app, PC remote play
- Price: $69.85 on Amazon at the time of writing
8BitDo Ultimate Mobile: The Android-first pick
8BitDo’s Ultimate Mobile is the only controller here built for Android, with a listing that says it fits phones from 100mm to 170mm long. It costs $49.99 on Amazon at the time of writing, with more than 850 reviews at 4.4 stars.
8BitDo says it has Hall effect joysticks and triggers, two back paddles, a profile button and turbo.
Key specs
- Fit: phones from 100mm to 170mm long
- Controls: Hall effect joysticks and triggers, two back paddles, profile button, turbo
- Build: metal joystick rings
- Price: $49.99 on Amazon at the time of writing
abxylute S9: The big full-size one
abxylute’s S9 is the controller to look at if you want a full-size grip. The listing says it’s a real full-size gamepad design rather than a telescopic one with a small grip, and it costs $62.99 on Amazon at the time of writing.
abxylute says it supports 5V 1A fast charging while you play and works over USB and Bluetooth. A free app handles button mapping, and it supports Xbox Cloud Gaming, PS Remote Play and emulators.
Key specs
- Connectivity: USB-C and Bluetooth
- Controls: Hall effect sticks, free button mapping
- Charging: 5V 1A pass-through while playing
- Software: abxylute gaming app for local library, Xbox Cloud Gaming, PS Remote Play
- Price: $62.99 on Amazon at the time of writing
Backbone One (2nd Gen): The well-known name
Backbone is the best-known name in phone controllers, and the second-generation One has an RRP of $79.99. Backbone says it works with iPhone and most Android phones over USB-C and includes adapters for case support.
The listing says you can play Fortnite and Roblox, stream through Xbox Game Pass and GeForce NOW, or use remote play, and a Backbone+ trial is included.
Key specs
- Connectivity: USB-C (Backbone says it works with most Android phones)
- Controls: analog triggers, high-precision thumbsticks, responsive D-pad and buttons
- Extras: adapters for case support, Backbone+ trial
- RRP: $79.99
GameSir X5 Lite: The budget pick
GameSir’s X5 Lite is the cheapest option here, with an RRP of $34.99 and more than 2,000 reviews at 4.1 stars. GameSir says it stretches up to 213mm to fit most Android phones and compatible Android tablets.
It weighs 135.4g, has Hall effect sticks and cushioned membrane buttons, and GameSir says it supports cloud gaming, Steam Link and Moonlight.
Key specs
- Fit: up to 213mm, most Android phones and compatible tablets
- Controls: Hall effect sticks, cushioned membrane buttons and triggers, turbo
- Weight: 135.4g
- RRP: $34.99
Verdict
For most Android players, GameSir’s X5 Lite is the one to buy: it’s cheap and fits almost any phone. 8BitDo’s Ultimate Mobile is the Android-first pick, Razer’s Kishi Ultra is the better build for more money, and the Kishi V3 Pro is the one for people who want the best. Backbone suits anyone who wants the best-known brand, and abxylute’s S9 is for full-size grips.
It’ll be worth seeing how these hold up with the latest Android phones and big cases, since many are written for iPhone. Prices and availability can change, so keep an eye out for promotions.
