I need a new phone! [This time I'm serious]

No, it seems like it should have Flyme 4 on board, judging by the photo, but the description says otherwise: Android OS, v4.2 (Jelly Bean), meaning that it's probably only 3.5.3, you can upgrade it yourself though, but it is said that you won't be able to downgrade back to 3.x afterwards (Not that you'd want to, Flyme 4 feels a lot more polished and has apps like Clean Master out of the box, not to mention that they're trying to make it more customizable like MIUI), if you're hoping to install custom roms on your mobile phone then ignore my messages, as you can't install them on MX3 and MX4/MX4 Pro (Apparently, Meizu thinks that by encrypting the bootloader and not sharing sources they are protecting your phone and its data, I can't say for sure if that's a smart move or not, I'm no dev, at the same time, they've promised to port Ubuntu Touch for their phones so here's hoping they release it for the MX3 as well)
The only problem I have with my phone is that the battery could've been better (MX4 has a 3100mAh battery, while the MX3 has an irreplaceable 2400mAh battery which lasts for upto 1.5 days for me, but, generally, I recharge my phone everyday because I often have to use the mobile internet, which eats up the battery quite quickly) but I guess it depends on how you're going to use your phone, if you don't mind Meizu's weird resolution fetish (All their phones have a slightly different resolution than most phones, mine is 1080x1800 and the only app which didn't quite adapt to the resolution for me was Skype, the emoticons in it look too small, otherwise, everything works quite fine) and want a phone that can sound great with earphones then I'm sure you'll like their phones, but instead of listening to me, what you really should do is go to a store and try every phone out, that way you could make sure to find the perfect model for you, because my dad wanted the MX3 as well until he got his hands on Xiaomi Mi3 and found all that he wanted in it :)