(I also wrote about the Galaxy S3 vs the One X here, though everything I posted here is still relevant, but perhaps much more so with the S3/One X!)
One of the first things (the second, to be precise) I look for in the specs of smartphone when I want to decide on the best performing device is RAM memory, both total and ideally how much is available to the user after a soft reset.
Having enough RAM is the difference between a pleasurable user experience and an exercise in frustration: I would much rather have a phone with a somewhat slower CPU than a RAM-starved device (and I know that from my personal experience). Given this fact alone, and when you take into account the RAM specs for the Galaxy S2 and the Sensation, 1GB vs. 768MB respectively, the decision is obvious, even more so given some reports that Sense 3.0 on the Sensation uses up half the RAM on the phone! Yet most people only look at the CPU when they compare two phones for performance, seemingly unaware of the significant slowdowns that occur when the OS has to start closing down apps in the background and then run the garbage collector due to lack of RAM memory, or worse, completely reload the apps.
So in the case of the Galaxy S2 and the Sensation, comparing CPUs is virtually pointless as far as day-to-day performance and usage is concerned. Any bottlenecks will much sooner be a result the amount of RAM available. And with the Galaxy’s RAM you can also be much more certain that your phone will be able to run future versions of Android, as it invariably grows and requires more demanding hardware (look no further than the HTC Desire and Gingerbread-update debacle, where HTC claimed that the Desire does not have the required hardware to run Gingerbread well).
Add to that the superior battery life on the Galaxy S2 and there is nothing to think about, really. And no, not even the Sensation’s qHD display nor HTC’s Watch video streaming service can make up for this.
In all, the Galaxy S2 is almost the perfect phone right now as far as the hardware goes (the only thing I would *desperately* add is a notification light!), and the other manufacturers should take note.
I had heard about the so-called “death grip” on the Sensation but since I had not seen any evidence of it I did not include it. But then I came across this where you will be able to see it firsthand; if you still were not convinced that the Galaxy is the right choice then you should be after watching that video.
I now have an SG2, coming from an iPhone 4 – i.e. I absolutely meant it when I said that the SG2 is the better phone compared to the HTC Sensation, and that it is the best phone currently on the market.