But before that, I'd like to stress two things:
a) There are all kind of Android devices, but for this post I'll refer only to the high-end phones.
b) Sybmian devices also have their strong points, but I'm sure these points will be posted in Symbian forum section.
So, here we go, the advantages of an Android device:
1) Great processing power based on modern processors. Androids use Cortex-A8 based processors which deliver a much better performance than Symbians with Arm 11 CPUs. Excellent examples are HTC Snapdragons (currently with 2nd generation) and Samsung Hummingbirds, both running at 1 GHz speed (versus 680MHz speed in Symbians). The gap in processing power is even larger with the newest dual-core CPUs based on Cortex-A9 architecture (like in Motorola Atrix). That makes Symbians to fall even farther behind Androids.
2) Screen resolution. Androids use higher screen resolutions with 800(854)x480 compared to Symbians (640x360). This allows more details to be displayed on screen, which is especially handy with web browsing (the extra information on screen saves the trouble to scroll too much). Furthermore, the recently announced Atrix brings even a higher qHD resolution (960x540)! That means 2.25 times more pixels on the phone display than those found in Symbian phones.
3) Memory (RAM). Everyone hates when the applications in a phone start to crash because of low memory. While 512MB RAM is normal for Androids, Symbians have to leave with 256MB RAM. Despite Nokia trying to optimize the memory usage, “out of memory” messages still happen in Symbian phones. On the contrary, some Androids reward you with even more RAM (768MB in Desire HD, 1GB in Atrix).
4) Graphics and games. Symbian devices use the Broadcom BCM2727 GPU, which while seems to perform pretty well against the old Adreno 200 chips (Nexus One), it falls behind the newest Android GPUs. Current Android devices come with powerful GPUs based on Adreno 205 (Desire HD) or PowerVR SGX540 cores. Furthermore, the newest Nvidia Tegra 2 chips bring even further boost in graphics performance, that is said to show 3-4 times better performance than Adreno 205 or SGX540! Nvidia has opened a special portal called Tegra Zone, where the owners of Android Tegra 2 devices can enjoy high quality gaming (as Nvidia describes the chip: "capable of extreme multitasking with the first mobile dual-core CPU, hardware accelerated Flash, and console-quality gaming with an ultra-low power GeForce GPU).
5) UI and customization. It has been pointed out by many analysts that Nokia UI is not modern enough to compete with Android/iOS. The limited customization of the homescreens and deep menus are all weaknesses of Symbian. On contrary, Androids offer huge customization of homescreens, menus, launchers, widgets that will satisfy vast majority of tastes. Either go with manufacturer customized UI (like HTC Sense with its 7 homescreens and widgets) or create a new one completely suited to your tastes. Popular launchers like Launcher Pro or ADW Launcher are handy to create customized UIs.
6) Web Browser. The Android stock browser is the most popular out there because it does the job nicely. Starting form Android 2.2, it can support Adobe 10.1 full flash, that is being used in many websites. This enables full browsing experience, enables flash video streaming and playing flash games from websites like Kongregate. Symbian browser at this moment is a headache to use. For that reason, some users have jumped to use Opera, but it doesn’t support flash.
7) Multimedia. Thanks to powerful hardware and abundance of multimedia applications, playing videos, listening to music or playing with photos is fun on Android devices. Large screens (up to 4.3"), great displays (Super Amoleds), huge amount of media players, support for all popular audio/video formats, HDMI connectivity, DLNA media streaming - all these contribute to the media fun. Symbians have to limit themselves with lesser displays, rely on default media player (because there are hardly any good alternative applications) and miss DLNA connectivity.
8.) Applications Store. While Symbian OVI Store has grown recently (258% in 2010), it's growth is lower compared to Android market (544% in 2010). The number of applications is also much higher in Android Market (200,000) compared to OVI (40,000). However, what the user notices most is how these app stores integrate with their phones. While OVI seems to be just a disconnected place to download applications, Android Market will synchronize your installed applications, will notify you of almost daily updates, will auto update them all if you wish (even simultaneously) and offer similar apps. Some alternative client applications for Android Market, like AppBrain, take it even further by allowing you to browse the applications on PC and schedule auto installs on your phone or allow customized selection of apps suitable for your needs.
9) Applications. As pointed above, there are more Android apps available than Symbian Apps. But what does this give us?
For one, you can do more things that you can't do with Symbian, because Symbian doesn't have similar application. Next, there is the variety of applications. Thanks to more developers being involved with Android, we get a huge choice of applications. Try to count the number of applications available for Android and Symbian in a particular interest, say how many music or medical applications are available in each platform.
When we look at the applications outside the Apps Stores, they are most easy to install on Androids: just copy them to the phone and run it there. With Symbian, you have to deal with the complicated Symbian signing procedure. DailyMobile's Symbian forum has probably a few thousands posts with desperate questions on this matter.
Finally, sharing apps on Androids is a breeze thanks to Apps Sharing applications and QR codes. There are multiple ways to do this, including Dropbox sharing and Barcode scanning.
10) Custom ROMs and Modding. This is a special area where Androids shine above other platforms. Professional modding communities like Cyanogen, XDA-World, or Modaco are immensely popular by creating new firmware with either new OS versions or improving those that come built-into the devices or by adding new features. For people who love to scqueeze the best out of their phones, Android truly offers the best possibilities.
11) OS updates. On average, every 6 month there is a new OS version in Android. While manufacturers have different ideas about updating their phones (HTC does an excellent job updating their phones), you can almost always update your phone to latest version thanks to custom ROMs. The fist Android phone (G1) that was released in 2008, was updated to Android 2.2 Froyo via Vodaphone and via custom ROMs. Symbian jumped from S60V5 to S^3 for touch devices, but none of those S60V5 devices was updated (probably because the hardware was crap).
12) Market trends.Some trends are obvious, like declining popularity of Symbian devices, falling Symbian and rising Android market shares, other manufacturers abandoning Symbian at all (like Samsung and SE), disposal of Symbian foundation, etc... It has come now to "One versus Many" where Symbian is alone (Nokia) against a team of players (Google, Samsung, HTC, Motorola, SE, LG, etc...). In January, the CES 2011 electronics show was all about Android devices (now even stronger with tablets invading the market), while Symbian was nowhere to be found. Maybe in MWC in February? Maybe... Taking too much time between announcing a phone and releasing it doesn't help Symbian at all (typical examples are Nokia N8 and E7). Contrary to this Androids keep it short, between 1 to 3 months (see DHD or Nexus S or LG Optimus 2X).
So, which devices have a brighter future? One doesn't need to be an Oracle to point it in Androids direction...
Folks what gonna be your next phone??
