Dave's initial computing device. It looks like a regular, but fairly advanced desktop computer. His wallpaper is from And It Don't Stop, another one of Hussie's comics. Not much is known about it.
Dave Strider's phone is an item found in Homestuck. Much like John Egbert's PDA, Dave's phone allows him to communicate with his friends using Pesterchum and, according to the icons, allows him to call others, check his email, and use the internet with Hephaestus, his favored browser. It is clearly an iPhone, as the Apple logo is on the back. More specifically, the general shape of the device and appearance of the dock suggest it is the iPhone 3GS model. The sole difference between the real life iPhone and this one is the fact that this one can open programs such as Pesterchum as separate windows.
The background of Dave's phone, like his computer, is from one of Andrew Hussie's other comics, And It Don't Stop.
The iShades, sometimes referred to as iGlasses, are Dave's equivalent of John's Serious Business Goggles. They look like his normal sunglasses with an Apple logo in the middle of each lens, and they create a blue glow around his eyes when active.
The iShades are created both by future Dave and alpha Dave. When future Dave prototypes himself, the iShades seem to be the only thing he takes with him into the sprite. Since Davesprite can access Pesterchum seemingly without using a computer, it is implied that prototyping himself while wearing the iShades made them a permanent part of his sprite. When present (alpha) Dave finds the time to mess around with his alchemiter, the iShades are the first thing he creates, as he has already seen Davesprite's iShades.
The iShades are made by combining Dave's iPhone and sunglasses. It is unclear how they are operated, but it is likely to be some kind of hands-free system. When running PesterChum, the iShades to use a voice-to-text converter.
The turntop is a portable computer, created by alchemizing the Timetables and Dave's PC. It costs 600 Build Grist, 1200 Garnet, 900 Mercury, 300 Gold, and 1 Diamond. It allows him to take his PC with him wherever he goes, a significant upgrade from the iShades as it allows him to operate Sburb. It seems like they are able to be used without hands.
Dave's wrist communication device Edit
In Act 6 Act 6 Intermission 2, Dave is seen wearing a communication device on his wrist, from which he receives a blurry message from Karkat. It is shaped like a green butt, and it was most likely alchemized from one of his bro's smuppets.