Galaxy S5 was IP67-rated (1 metre depth, 30 minutes) and had a user-replaceable back cover / battery
Also a notification LED, OLED screen, bezels to pick the device up by, headphone jack, unlockable, a continuous light sensor... peak smartphone, save perhaps for the meager 200 Hz accelerometer refresh rate (modern phones have 500 Hz usually, I have no idea what for but I personally love toying with FFT plots)
If the headphone port flap was perfectly sealed….