[RAZR i Q&A, Help & Troubleshooting] RafaelOliveira:
I had the "common" Defy, not the plus one, before the Razr I. What a tough phone, I really enjoyed that, upgraded the CyanogenMod's until the ICS, then I sold it to a friend... whom killed him sinking it in a glass of Red Label whisky! Poor phone :crying:. But let's talk about the Ri. I bought mine in December, 2012. Now, I was about to buy another phone, but the news about upgrade to KK changed my mind, and I'll keep it a little more months. The Ri isn't water and dust proof as Defy, but it's tough anyway. It fell in the ground after 1 week I received it, and made a VERY little scratch in the bottom left metal corner! The Kevlar, in practice, doesn't make it feel tougher, but helps a lot about finger prints usually is visible in the back of other phones, in Ri is extremely reduced.

-compactness: In comparison to Defy, it's MUCH thinner! I use my Ri with a silicon case, and screen shield, and when I take out the case, it makes a huge difference, in weight, and dimensions, and the feel that metal + kevlar gives you. Yes, it can be used with only one hand easily.

-good battery life: It depends a lot of use. I use my Ri with static wallpaper and auto brightness. 2G/3G always ON, 40% of the time in WIFI, a few times checking Facebook, Instagram, Snapchat, some SMS's and a few calls, it can handle from 8am till 10pm~01am most of times, in my style of use.

-music playing: I have to admit that Ri isn't my main music player, but my tablet Asus Transformer. Anyway, I have PowerAmp installed in Ri too, it has a good sound quality, the speaker could be louder, it reduces the bass to avoid dirtortions. The earphone that comes with Ri is an ordinary one, with a mic. If you really like sound quality, I recommend you to buy a good one, if you don't have already done.

-enough power for multi-tasking: It can handle this case of Multi Tasking easily. It won't be as fast as the top phones, but it won't disappoint you in your situation of multi tasking.

-quick camera: The camera opens REALLY fast. The case I use in my Ri, doesn't have the hole to press the camera button, so sometimes when I take my phone, accidentaly press the camera button and it instantly turns on. In quality of image, it's more than enough to post in Facebook, and this social websites. But looking deeply, in dark situations, it shows a lot of noise, if not used in Night mode (use in Auto, for ex.). The videos in Full HD are awesome, sound too, but the against part, is that if you don't get steady, they'll be shaky very easily.

-custom ROMs: This is weakest point of Ri, because of Intel processor, it makes to get the drivers much harder for the developers. But I'm fine with the way stock JB is, and Kit Kat is about to come. I had already passed some bad situations changing ROM's in my old Defy, so the more you stand in a stock ROM, better it'll be. With KK, Ri will be up to date, so there's no reason for a while to search for other ROMS.

I don't like gaming in the phones too. Although, Ri can handle most of them, it heats a little, nothing that makes unconfortable, like most of the other phones in the market.

Sometimes, my Ri starts to get a little laggy, but I learned a trick, that anyone can use it if you want: the cache memory from apps. When the laggy starts, just go to Settings, and clear the caches from the main apps (Facebook, Instagram, for ex., which ones can reach +100MB of cache quickly).

It's a good phone, worth it for it's price, but it will get outdated, as I bet that KK will be the last update for Ri. As someone told before, there is the Moto G, that is newer, and can receive another update, but it loses against the Ri in the lack of SD card, and camera.

Sorry for any mistake in my English, I really hope you understood everything I wrote, because it's my routine with Razr I.