Samsung Galaxy Z Flip4 is a definite step up over Flip3
Reasonable one-day battery life, Excellent phone reception strength for city, suburbs, regional and rural use, The camera is good – not outstanding, The external screen is more useful now, Nice, colourful, and bright display
Throttles badly after four minutes, No mountable external SSD storage, The crease and two-handed opening may bother you, Mohs hardness 2 (out of 10) for the main screen – take extreme care, No charger inbox – bad Samsung