Oh yeah, I forgot they had most of that. I switched from the Note 5, which if I remember, didn't have too many of those, but they are pretty neat. (I still liked my Galaxy S5, though it broke 11 months into owning it, like my Note 5 did. :_: ) But my previous year with the Note 5 was pretty bad. I'm still unsure what caused it all, but the device just preformed poorly for me. Even after getting a replacement phone, (The charger port died so I was able to get a warranty claim) the replacement phone felt slow to me aswell. I've had my OP3 for ~7 months now, so most of that is off of memory, since I don't use the Note 5 anymore. (I have to keep it until the payments are done tho :/ ) I think if I had stayed with the Galaxy S series, I could still be using a Samsumg, but the experience with the Note 5 was just not fun. Plus, I've finally gotten to play with having root and all that good stuff, so I think it was for the better.Samsung phones have more gadgets than the OnePlus series however.
-It has the Gyroscope for AR (augmented reality)
-Fingerprint sensor (I think OnePlus has this one though)
-Heart rate sensor
-Pedometer
-Barometer (because why not?)
-IR Blaster (removed from S7)
-KNOX security
Exclusively runs the Exynos CPU, which proves to be an extremely fast CPU that usually can be overclocked to outperform most phones.
Ultra AMOLED display
Water, dirt, dust, repellent
The disadvantages I see that come with Samsung though can be:
-Bloatware
-Slow updates
-TouchWiz (poor RAM management)
~Kinda hard to root/flash custom ROMs due to Samsung not releasing kernel sources.
But the disadvantages can be negated when developers work hard to root the phone and build a custom ROM.
Now don't quote me because I'm too lazy to fact check, but this was gathered as me being a Samsung Galaxy S6 owner, and kinda why I turned down other amazing phones like the Moto X Pure, OnePlus 3, and a few others.
Side note: Wireless charging saved my life for about a week, but I don't think it's all that great since it wouldn't work half the time (on the Note 5) when I put the phone on the charge pad thing. It's still a really awesome idea though.