Improving upon its unique foldable smartphone line, the Galaxy Z Fold 4 gets a refinement in nearly all areas. The main and cover display now support up to 120Hz refresh rate. The handset is more durable now thanks to Samsung’s Armor Aluminum frame, and what is even more astonishing is the fact that despite having accessible openings when the device is folded and unfolded, the Galaxy Z Fold 4 still gets an IP68 water-resistance rating. The internals include the powerful and power-efficient Snapdragon 8 Plus Gen 1, along with 12GB of LPDDR5 RAM. The cameras at the front and back also see major improvements compared to previous iterations, and there is an S-Pen support if you care about that sort of stuff. The battery is also a reasonable size of 4,400mAh, so even if you used the foldable flagship aggressively, you would have some charge left over before plugging it in late at night.