An interesting feature on the camera front is a Selective focus mode that allows you to take some close up shots and have the background blur out, which is what you'd want. If you're trying to take a picture of something in candlelight, the S5 is the better option. If you've got a glorious landscape, you'll get better colour reproduction with the S5.
Video-wise, Samsung ticks the 4K box with the ability to capture 3840 x 2160 UHD clips. Like the Apple iPhone 5s, the Galaxy S5 can record slow-motion video at 120fps, in addition to 4K UHD recording. The latter will eat up a lot of storage space, making your collection of microSD cards come in very useful.
Samsung's latest smartphone can utilize fingerprints to unlock your device, access private content, and even authorize payments. To do this you need to enter the phone's settings, select Finger Scanner, and click Fingerprint manager. Now swipe your finger from the screen down over the home button eight times. Now create a password to use in case the fingerprint fails to register. The Galaxy S5 can store up to three fingerprints.