After two weeks of testing the Koiiko controller across my iPhone 15 and iPad Air, I've got some strong opinions. The stretchable clamp design is genius - it swallowed my phone with its bulky case without fuss, though my friend's iPad Pro did wobble during intense sessions.

The Hall Effect triggers are the star here. Playing Diablo Immortal, the hair-trigger responsiveness made dungeon runs buttery smooth. But those hollow-feeling shoulder buttons? They click like cheap plastic toys during Call of Duty marathons.

Battery life was disappointing. While advertised for 15 hours, real-world use barely hit 4.5 hours streaming Xbox Game Pass. The ergonomic grips force wrists outward uncomfortably - after an hour, my hands needed breaks that my Xbox controller never demands.

Where this shines? Cloud gaming setup. Connecting to GeForce NOW took seconds, and those programmable back buttons saved me in Dead Cells runs. Just don't expect PS5 direct connectivity - streaming only works through apps.

For $40, it's a decent mobile stopgap but not a premium replacement. Casual gamers will love the convenience, while hardcore players should wait for something sturdier.