First let's take a look at the exterior of the iPhone. The front of the phone is all screen - that's right, there is no "keyboard". The virtual keyboard only comes into play when you need it for a certain application. This certainly frees up a lot of real estate on the phone which allows for such a large screen. The screen itself is a widescreen display measuring 3.5" from corner to corner, 320x480 resolution with 160 pixels per inch. The only button on the front face of the iPhone is the Home button, which of course, takes you back to the home screen from any application.
Here we have the left side of the iPhone. There are two buttons on the left side: one for the ringer and the other for volume. The backside of the iPhone is plain enough, with a 2 Megapixel camera in the top corner. The bottom of the device features a speaker, mic and a 30-pin iPod style connector. Finally, we have a 3.5 mm headphone jack, a slot for your SIM card and a Sleep-Wake button.
Now let's take a look at the Treo 700p. The front of the 700p features a 320x320 resolution touchscreen capable of displaying up to 65,536 colors. Below the screen is a navigational key layout and six other buttons used for various tasks such as placing or ending a call. The four smaller buttons can be reassigned to different applications. Below these keys is a full backlit QWERTY style keyboard.
The left side of the Treo has two buttons for volume control and a third button for recording voice memos. The bottom of the Treo has a 2.5mm proprietary headphone jack, sync cable connector and battery connector port. Up top, we find an external antenna, IR sensor, ringer on/off switch and an SD memory card slot. The back of the unit has a 1.3 Megapixel camera, self-portrait "mirror", speaker, stylus and holder and a battery cover.
So, what's good and what's bad on each phone's layout? One of the key selling points of the iPhone is its lack of a true external keyboard. I think this is a really good idea, but I am sure it might take some time to get used to. As for screens, the iPhone clearly wins out here. While both displays are touchscreen (and no, a stylus isn't required for the Treo - you can use your finger just like the iPhone), the iPhone is indeed a few years ahead of the Treo's display.
The iPhone features some really cool display technology, such as the built in proximity sensor. This sensor detects when the phone is close to your face and turns off the screen, thus saving battery life and preventing any "misclicks". I have had problems with this on the 700p - I have actually hung up on a few people on accident, because my cheek presses the Hang-Up button on the touchscreen. Another nice feature of the iPhone is the ambient light sensor, which automatically adjusts the display brightness based on the surrounding light conditions. With the Treo, you are required to adjust screen brightness manually.
The last thing I want to mention is the headphone jack on each unit. The iPhone uses a standard 3.5 mm jack whereas the 700p makes use of a 2.5 mm jack. This proprietary 2.5 mm jack is a real pain, and forces you to use an adapter if you want to use any headphones besides the ones that come with the phone.
Continue on as we take a look at some of the basic features of each phone, including e-mail, text messaging and pictures...