This is my current mobile phone. It's the Sony Ericsson Z520a. I bought it 2 years and 3 months ago so I could take advantage of the Bluetooth handsfree capability of my then-new car. And I have to say that it has REALLY come in handy. Paid about $100 for this.
I have made up my mind about buying the iPhone 3G, so I just wanted you show you the comparison between my current phone and my future phone.
Sony - 3.3 x 1.8 x 0.9 inches (when closed)
iPhone - 4.5 x 2.4 x 0.48 inches
I'm really surprised that the iPhone isn't all that much bigger than my current phone. It's only about an inch longer, about half an inch wider, and actually about a half inch THINNER.
Sony - 3.3 oz
iPhone - 4.7 oz
The iPhone is only about an ounce heavier.
Sony - 128 x 160
iPhone - 480 x 320
Display resolution is nearly tripled.
Sony - 16 MB
iPhone - 16 GB
Here's the first major upgrade. From megabytes to gigabytes. :)
Sony - GSM 850/900/1800/1900, Bluetooth
iPhone - UMTS/HSDPA (850, 1900, 2100 MHz), GSM/EDGE (850, 900, 1800, 1900 MHz), Wi-Fi (802.11b/g), Bluetooth 2.0 + EDR
I wanted to use my iPhone a lot for its internet connectivity. I waited until the iPhone could utilize the 3G HSDPA speeds. Internet on my current phone really SUCKS.
Sony - 9 hours/400 hours
iPhone - 5 hours on 3G, 10 hours on 2G/300 hours
Even though the iPhone can do more, it still has a decent battery.
Sony - 0.3 megapixels, 4x digital zoom, video recording
iPhone - 2.0 megapixels, photo geotagging
This is where I actually lose some features. The iPhone has a resolution that's 7 times better. But, there's no zoom and no video recording. However, photo geotagging is a really interesting feature. It's something I could have used on my trip to Portland.