This thread can go places if more people posted their thoughts on the phone they own. I feel like some review places are highly biased or too "expecting" somehow.
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Samsung Intercept on Virgin Mobile.
It's my first smart phone, so I was probably expecting a little too much. I will review both the phone itself and the Android OS.
In terms of flexibility, it runs on Android, so applications are abundant. However that is not without a downside, which will be discussed later. Currently I have apps that do math conversions for units (time, distance, mass/weight, etc), as well as a scientific (ish, it's missing the π button; at least it has trigonometric buttons) calculator and "electricity" app (has formulas for equations that revolve around electricity, resistor color codes, SMD resister codes, Ohm's Law, etc). Apps for forums even exist (I can access the "mobile" version of KWA's airsoft forum, as well as Bimmerfest's mobile version of their forum).
However the abundance of apps is not without downside. There is no real quality control for these apps besides from ratings provided by users. The app market/store is not like Apple's, where the apps are tested for quality and content. Android's app store is basically a free for all- anyone can develop and upload. Some applications can even knock out certain features (For some reason Crunchyroll's Android app knocked out my 3G/Data and Wifi capabilities until I force closed it). Be careful what you download, and don't download EVERYTHING.
On this phone, you have both the touch keyboard and the slide-out keyboard. The slide-out, physical keyboard is fantastic. Buttons are big enough without feeling "cramped" in my opinion. However it is a slightly modified version of the QWERTY keyboards normally found on computers. The "b" button for example is placed to the right of the space bar, with the "n" being to the right of that, and the "m" to the right of the "n". Needs time getting used to, but it's not really that much of a big deal.
The touch screen itself is decent. It's not MASSIVE, but it's not Gameboy Micro sized. Can be bright if need be, but I myself put it on the semi-brightest setting to conserve battery.
Sometimes the touch screen does not recognize your movements until a small moment later, this might be due to the phone's hardware not being able to keep up with the movement speed, or the OS itself. I'm not too sure.
The Android OS can hang up on you in general, sometimes lagging behind commands, touch-screen presses, etc, then completely freeze up. A few moments are needed for it to unfreeze by itself, but it's a pain. I found that switching through SMS/texts to browser to Facebook to Twitter (in any order, with almost any program) very fast can cause the hang ups and freezes.
The phone comes with a 2gb micro SD card, which is handy.
Battery life can last you between 4 to around 10 hours, depending on use. Use of certain apps can drain battery life faster, as well as keeping Wifi/Bluetooth/Sync mode/GPS on all the time. I noticed things like the Tiger GBA emulator app can drain battery quick, despite having a play session of 30 minutes.
I installed Launcher Pro (free version) on this phone. It worked fine until recently, where it froze up the phone quite a bit. Upon force quit and uninstall, the phone runs faster.
Camera is somewhat decent. That said it's a phone camera, you're not going to be taking long-range shots with this.
The phone comes with little to no apps, you'll have to find and download those on your own.
There is a problem I keep running across when it comes to Contacts. Certain contacts are uneditable, where you try to edit their information and save, but Contacts ends up not responding and force quitting itself. This does not apply to every contact. However it would be nice if this issue was resolved as multiple users have encountered this problem.
The phone itself is not all that big in its compact state, unlike things like the HTC Evo 4. This is not without trade-off: the Intercept's screen is not as big as the Evo 4's, among other things.
It's a good non-contract Android phone for an unlimited data plan ($25 a month). However if you want more out of an Android phone (using more memory-extensive apps, Live Wallpapers, faster processing speed, etc), look elsewhere (Virgin Mobile mainly, I have bad experiences with AT&T.).