I have owned a lot of smart phones. but this is one of the best ones I have owned. only few items I don't care for. the batteries not replaceable they don't have a sd card and the speakers on the bottom.
I like my new Galaxy 6 as I just upgraded from the Galaxy 4. The only thing I don't like which is common on all my phones and most others is how loud I can make the volume go. I don't like the feature on this phones that states playing volume at high level is bad. Other then that I am very happy with my phone.
I'm no expert but I chose the S6 because it offers many features that I'm sure I'll spend the next year or so trying to take advantage of. I love that because of auto dark/bright setting, I can see the phone in bright sunlight while wearing sunglasses. I also love the extra camera features and especially the themes offered so I can truly personalize my phone. And I've just begun! I'm hard of hearing yet have been able to hear just fine and speakerphone is better on the S6 than it was on the S5, and it seems to be better for me as well as the person I'm talking with. Unfortunately, I did start with a phone that had a glitch in the screen touch sensitivity but quickly received my replacement, which is now much better. I also would like better battery power but the charger is fast and I also have a battery pack for when I'm away from an outlet and having a heavy usage day. It does help to utilize the power saving feature and early if you know you'll need it. I would've loved the S6 Edge but chose a 64GB storage over looks (about same price for 64GB S6 and 32GB S6 Edge). Overall, I'm pleased with my S6 and look forward to finding more of its features.
Pros: Built-in speakers, Bright display, Realistic color, personalization features
I tend to take my phones for the long 2-Yr service agreement haul. I use the phone from dusk to dawn for various tasks.
My main usage of the phone: Facebook, Chrome, Dropbox, Skydrive, Messaging, Calling, Token Software, and Skype. Moderate to rare usage: Camera, Game Apps, Photo Editing, Documents, and Database Access Rare usage: Xbox Smartglass (One and 360), Steam, PSN, and FFXIV Libra
The S6 has a sleek design and fit comfortably within my pockets and hand. I use a slender, yet protective, case and I have no issues regarding size. There is a minor increase in size, not noticeable, from the predecessor Galaxy S4. I recommend protection for the phone, they feel very breakable.
The non-removable battery and lack of expandable media slot has not impeded my enjoyment of the phone, nor have I cared to need either. The 64 GB capacity along side my unlimited data / wifi data has far exceeded any need for data expansion. The removable batter is mute, if I ever run into an issue where the phone locks up, there is a force off function.
The phone performance with Android 5.0 is quick and responsive, even after 2 weeks of usage, loaded applications, and a dozen open apps. I've experience no lag / slow performance. Most performance issues derive from connectivity when on minimal coverage from the service provider.
The touch screen is responsive and smooth. However the swipe keyboard still need improvements in registering the letters you are trying to use.
Battery life is 2x of an improvement. I charge once (1) per 2 days. I use the phone moderately.
Charging is wonderfully fast. 1-2 hour 100% charge time from 1%.
Visually the screen resolution is crisp and clean.
Photos have some fuzz here or there, but over all great.
Audio is as you'd expect.
My experience with the S6, so far, is overwhelmingly positive. There have been minor hiccups, a countable amount of times on one hand, but none to hinder my enjoyment of the device.
I would purchase a Samsung product again.
Pros: Built-in speakers, Bright display, Realistic color, Lightweight, handheld device to serve many if not all needs.