There are two elements to consider for compatibility:
- Hardware (your physical phone, size, shape and location of the camera)
- Software (what operating system it uses)
The Movi uses an adjustable clamp to physically accommodate a variety of phones. If the camera on your phone is in the center of the body (like the Samsung S9), you will likely need counterweights to keep the roll motor out of view of the camera. Let us know if a counterweight kit specific for this purpose (where you won't every use accessory lenses and don't need the full Movi Adjustable Counterweight Kit) would be valuable for you!
However, there is a possibility that a Plus/Max or XL sized phone won't fit, if you have a bulky case. If you are unsure if your case will fit, check out the graphic below: