[LeEco Le Pro3 Guides, News, & Discussion] Ascertion:
I received my LEX727 in the mail yesterday (US variant). So far it's pretty nice. I'm coming from an S7, I do miss the AMOLED screen, but this screen isn't bad either. As far as first impressions go, the speakers are very clear and can get pretty loud. (with the phone facing you) the bottom left speaker is a microphone), it's something I've noticed when testing the speakers. It is stereo though as the ear piece plays music and the bottom right speaker plays music. It is a step up from the standard S7 speakers I am used to (I'm guessing it's not as loud or clear because of the water-resistant coating?)

Software - The UI is different. It is clean and very skinned. I'm not noticing very many frame drops either. It's a pretty optimized system. However it has some quirks in it I'd like to have changed. Sometimes the OS doesn't let you close out of the most recent app since it is dedicated to the quick switch process (ie: pressing recents twice in a row let you switch between the last two apps.) It can be kind of frustrating if you're trying to clear the most recent app because you will need to open a new one to close the previous one. Instead of having the quick toggles in the pulldown, it's now a part of the recents screen. It can take some getting used to. The music settings in the recents menu are global. They work with my Pandora, Spotify, and Poweramp. This is something I really like! It's not requiring you to use the built-in music player.

Battery - I haven't used the battery to its fullest potential yet. It is already noticeably better than my standard S7 in this department though. Just driving to work with music streaming and almost an hour of screen time I have 91% battery left. We'll see how it holds up during the day.

Bloatware - The Le apps are kind of annoying because it's something you can't uninstall or disable. There's probably 10 or so total that I noticed. The only Le app I've actually used so far is the Le Remote (IR blaster). It works pretty well with my Samsung TV and I like that you can control the volume of the TV with the volume buttons on the device itself (I had to enable this in settings of the app). Makes it very easy to adjust volume without looking at the phone. It seemed to have support for a TON of brands too but I haven't tested anything aside from the Samsung. The device comes with about 59GB available out of the box (5GB dedicated to system.)

Hardware - The buttons, speakers, metal unibody, and specs are definitely worth the cost of this device alone. Speakers as already mentioned are good. I do wish I had an AUX port, but it's something I don't use too often and it did come with an adapter for those times you need it. The buttons are pretty well placed and I really like that they're all on the right-side of the device. It makes using the phone 1-handed a lot easier and it's also easier to take screenshots by using just your thumb (vol down+power.) As far as build quality goes, this one doesn't disappoint. I do wish I could've got the grey color though.

Cellular connectivity - I'm on T-Mobile and from initial testing, it supports quite a variety of T-Mobile's features. From WiFi-Calling, to T-Mobile's HD voice, to VoLTE, to Carrier Aggregation (it at least combines B2 with B4, no idea on B12) and when it does utilize CA, it'll change your LTE icon to 4G+ which is nice. Comparing signal strength of my S7, it's very comparable in stronger signal locations. I think it is a bit weaker when it comes to the edge of signal however and I've noticed roughly a 25% decrease in speeds coming from the S7 (which is 4x4 MIMO and 256QAM enabled). Still very usable though as my speeds are typically around 100mbps on the S7 and 75mbps on the Pro 3. HD voice sounds wonderful. Great quality from both the ear piece and the microphone. YES!

Bonus stuff - Screen protector is preinstalled but comes off VERY EASILY when you peel off the initial film. I actually threw mine out accidentally because I didn't even know it came with a screen protector. The clear case it comes with is very very cheap. It'll offer some protection and some of you will like it but something that turned me off right away if that it absorbs and reflects the light from the LED flashlight on the back and makes the device extremely bright to look at (case design flaw imo.) I'd have to show you to explain it better haha. It does come with USB-C earphones, but I have no tested those.

Overall, worth the cost. I'm going to test a bit more before I decide if I'm going to keep it.