Your average everyday smart phone is a technological marvel. More CPU and memory horsepower than a gaming PC from the 2010s. Some have input devices (Galaxy Ultra series pen) that are pretty nice. My Galaxy's USB-C to USB-A Master adapter (used for those who were transferring iPhone data to their shiny new Galaxy) allowed me to plug in a wireless mouse and... oh E36 M3, a mouse pointer!? It wasn't even an advertised feature--the thing was just there to swipe data from my iPhone! But hey, mouse drivers? Why not?
They're literally laptops. Except they have cameras. And yes, they can probably run Crysis.
Things you can do with a phone that you probably didn't realize you could do with it:
1.) Run Crysis. Probably. I'm going to look into that. I've never actually played it, but if it's been ported, then I'm plugging in my keyboard and mouse and trying it.
2.) Share media with friends and family in a way that e-mail just can't with its paltry 25 MB size constraint. (See WhatsApp)
3.) Control other devices like your TV. Kids lost the remote? Of course they did (or was it me?). No matter. A few taps, and I'm controlling it with my phone.
4.) Translation of language (written or spoken) in real time. Arigatou Gozaimasu, Google Translate!
5.) Log into your VPN and access your file server and find that document you saved at home. Then....
6.) Open that document in Word. Or Excel. Or a Linux or Apple version of those applications.
7.) Measure distance in 3D space, including angles, just by pointing your camera at them. Like magic.
8.) Ping your own network from inside your network... and then outside the network... simply by turning off wifi and connecting to your provider's network. Because your crappy Motorola wireless access point thinks it should be a router, and because Motorola doesn't know how to design a robust user interface for their home electronics gear.
9.) Take absolutely incredible pictures, including some really wild shots of space, with powerful image enhancement tools (if you want) or just grab the raw image and edit it yourself.
10.) Install Torque (Android only), plug the thing into a charger port, connect it to a bluetooth OBDII dongle, and get real-time data from your race car. Maybe just... velcro it to the dash or whatever.
They're not just attention-grabbing, personal information stealing, time-wasting devices. I've found Android to be a great, flexible, and powerful platform. iOS is always good for almost everybody. Windows Mobile (Windows 8/RT era) was the prettiest, but with the worst support.