Yeah, the Whale Fall Bike Phone Holder should work for bigger phones like the Galaxy S23 Ultra.
The manufacturer says it can fit handlebars with a tube diameter of less than 45mm, so it's pretty flexible and can be used on different bike types: mountain bikes, road bikes, city bikes, and even electric ones.
While the manufacturer's description doesn't spell out exact phone sizes, our research shows it's made to handle bigger phones. So your Galaxy S23 Ultra should fit.
Still, it's always smart to double-check the size specifics just to be sure it'll hold your phone securely.
Setting it up is pretty straightforward—you won't need any special tools. It comes with thickened buckles and anti-slip pads, which should keep it steady on your bike.
Just be aware that, according to our research, it might loosen a bit on really rough surfaces, so make sure to tighten it well from the start for the smoothest ride.
All in all, the Whale Fall Bike Phone Holder seems like a solid choice for fitting various phone sizes and bike types.
Just check your handlebar space, make sure the fit is snug, and you should be good to go with your Galaxy S23 Ultra on your rides.