Are the batteries going to explode?
For everyone's sake, we hope not. Earlier this year, Samsung announced a slew of new testing methods and safety standards meant to ensure the Note 7's failures weren't repeated. Concerns over potential battery issues could partially explain why the S8s don't have bigger batteries than last year's flagships. In fact, while the S7 and the S8 both have 3,000mAh batteries, the S8+ actually has a slightly smaller 3,500mAh battery compared to the S7 Edge's sealed 3,600mAh cell.
What are they like to hold and use?
The phones we played with weren't final, but they were still impeccably crafted. There's barely any bezel between the S8's beautiful, mobile HDR-certified screen and the rest of the phone's body. That's a feat this device shares with LG's new G6, but the approaches couldn't feel more different. If the G6 is a flat slab of stone, the Galaxy S8 is a polished river rock, and it's all the more comfortable as a result. The larger S8+ is as impressive to hold and feel, and it fits neatly into small pockets without trouble. Sure, this screen might not be quite as pixel-dense as the smaller S8s, but there's no way most people would be able to tell. More importantly, this might be the most comfortable big phone I've ever held. The iPhone 7 Plus I usually carry felt like a whale by comparison.
The combination of Qualcomm's new chip and a seemingly lighter new version of TouchWiz mean the S8 and S8+ feel incredibly fast. The updated interface, by the way, is pretty gorgeous; it's not quite as loud as previous iterations, and the subtle new icons, fonts and widget choices make TouchWiz feel more mature. It takes a little more time to get used to the new home button. The physical key (and the capacitive keys that used to flank it) are gone. Instead, you have a small, pressure-sensitive strip of screen at the bottom that you can press while on any screen to jump to the homescreen. You just have to know the home button is there, even when you can't see it.
Since both the S8 and S8+ have curved-edge screens, there's no real need for an Edge model anymore. It makes sense that all of those Edge shortcuts, like app, contact and news panels, have been built into both versions of the S8. I'm still not sold on their usefulness, but it's nice to know they're around, waiting. I haven't had the chance to benchmark these things, but even unfinished, I couldn't get them to hiccup or stutter. For now, in terms of design and performance, the S8 and S8+ consistently impress.
What's up with this Bixby AI assistant thing?
To tell the story of the Galaxy S8s is to tell the story of Bixby, the virtual assistant Samsung has been working on for years. You can invoke ... him? her? it? ... by hitting a button on the S8's left side or saying its name aloud. Samsung's plans are ambitious: You'll eventually be able to control the phone with your voice as capably as you could by tapping the screen, a feat most existing assistants can't pull off.
To be clear, there are some big differences between the version of Bixby I played with and the version you'll see when the phones go on sale next month. When Bixby launches you'll be able to ask it for photos from your last trip to Hong Kong or to open apps. Bixby will also live on your homescreen, tracking your steps and offering suggestions to you when it starts to understand your behavior. Do you call certain people at the same time every day? Expect Bixby to notice and remind you. The S8s I played with weren't quite that far along, but Bixby Vision actually worked pretty well.
Long story short, Bixby will recognize things like products, restaurants and landmarks and offer more information about them. Let's say you're looking at a book someone is reading. You could use Bixby to learn more about the author or find a link to buy it. Even in these early stages, the visual recognition worked well: Bixby identified a bottle of Poland Spring water, a book and a friend's Apple Watch. (That last time, it offered Amazon links to watch bands.)
Is that all?
In a way, Samsung is trying to make the new S8s the center of the connected home. A new application called Samsung Connect lets you control or monitor all of your Samsung connected devices (of which there are now quite a few). Same goes for any third-party, SmartThings-compatible device that's tied into a network of smart home gadgets.
Additionally, Samsung cooked up a system called DeX. Tell me if this sounds familiar: You plop the phone in a dock; connect a monitor, keyboard and mouse; and get stuff done on a phone-powered desktop. I've seen so many other companies try this and frankly screw it all up, but I spent half an hour playing with the demo station Samsung had set up for me. Here's a deeper dive on DeX for you, but Samsung's hybrid approach to Android on the desktop seems surprisingly usable. Consider me cautiously optimistic.
When can I get one?
As of this writing, we don't know how much the new Galaxy S8 or S8+ will cost. It won't be long before we find out though: You'll be able to preorder the phones in the US starting tomorrow, March 30th, with an official launch coming on April 21st. Oh, and you'll get a free Gear VR and controller if you lock down a phone early. (We'll update this story once we get firm pricing details.)
That even these non-final phones were oozing with polish and poise is a testament to how important Samsung believes they are. After all, these are Samsung's attempts at redemption: It couldn't afford to build anything less than excellent. We'll have a full review for you soon, but this much seems clear: While memories of burning Notes still linger, Samsung seems to be right back on track.
Click here to catch all the latest news from Samsung's Galaxy S8 launch event!