Picture the second session, not only the first
An attached phone can make either product look like the same idea. The distinction becomes clearer when that session ends. Backbone explicitly documents three Pro modes: phone-in-controller handheld play, Bluetooth wireless use and a USB-C cable. If the next screen is meant to stand away from the hands, an unattached wireless mode is a concrete reason to investigate it.
Kishi also has a route beyond the phone
Razer documents cabled PC and iPad use for Kishi Ultra, so it should not be dismissed as a controller that only works while gripping a phone. Its proposition remains centred on the direct USB-C arrangement, with a 3.5 mm audio connection and 15 W passthrough charging. Someone happy with a supported USB setup has a different requirement from someone specifically seeking an untethered second screen.
Fit and haptics can settle a closer choice
For handheld use, the USB-C connector and the actual device/case matter more than a broad diagonal-size headline. Razer says cases covering the phone’s USB port may not fit the arrangement. Its current page also restricts Sensa HD Haptics to Android 12 or later and Windows 11; it is not supported on iOS. An iPhone reader should therefore choose the physical controls and playing form, rather than buying for that particular haptic feature.
Choose the form you will return to
Backbone Pro is the more relevant documented option when moving from an attached phone to Bluetooth play is central to the plan. Kishi Ultra deserves consideration when the intended devices and cable route fit the routine. In either case, a connection mode is only one part of the arrangement: the exact host and game must support the intended controller use. The better choice is the one that matches those actual sessions, not the device that lists the most possible screens.
Sources & further reading
Editorial review date:
