2. TimeShift camera feature
An awesome new camera feature in the BlackBerry 10 OS is the TimeShift camera setting, which helps you capture better pictures of groups of people -- particularly children, who may have trouble sitting still. TimeShift takes a rapid series of images and lets you isolate the faces of the subjects in your photos. You can then tap the faces in the picture and fast-forward or rewind them to find the best facial expressions. TimeShift is unique to BlackBerry 10 -- you won't find anything like it built into iOS or Android -- and it works very well.
3. Expandable storage
The BlackBerry Z10 supports MicroSD memory cards up to 64GB in capacity, which boosts the device's overall storage capacity to 80GB. I use one 64GB memory card in my device, and I carry around another pair of 64GB cards for a total of more than 200GB of storage at any given time. I have a massive music collection, and I can fit almost all of it on these three media cards. I could also carry additional memory cards if I wanted more storage space. The iPhone -- whose storage is fixed at 16GB, 32GB, or 64GB, depending on the model you buy -- doesn't support expandable storage; yes, there's an extra-cost Apple adapter that supports SD cards for photos and videos, but it doesn't support any oyther sort of file.
4. Removable battery
Even more valuable than support for MicroSD media cards is the fact that you can swap out the BlackBerry Z10's 1800mAh battery. I have yet to find a single smartphone that will last a full day of travel with heavy use, without needing to be recharged multiple times. That's why support for removable batteries is an absolutely necessity for anyone who travels frequently. Spare Z10 batteries cost less than $25 each at Amazon.com. And BlackBerry offers the cool Battery Charger Bundle that comes with a spare battery and a charging dock for simultaneously powering up your Z10 and an extra battery.
5. Screen share during a video chat
The BlackBerry Messenger (BBM) app got a significant upgrade in the BlackBerry 10 OS. You can now use BBM in BlackBerry 10 for video calls, in addition to voice and text chats, over Wi-Fi and LTE cellular networks. BBM in BlackBerry 10 also lets you share your device's screen with video-chat participants, so you can initiate a video chat with a colleague to show him or her a presentation or chat with a long-distance loved one while showing pictures of your recent travels. (Note: BlackBerry 10 is required for video chats; you cannot chat with users of older BlackBerrys or non-BlackBerry devices.)
I know of some screen-sharing software for iOS, but BBM screen sharing lets you quickly switch back and forth between sharing and a video chat, and you can continue your voice chat while sharing your device's display.
6. Intelligent preductive text entry
My single favorite feature in BlackBerry 10, and on the Z10, is the virtual keyboard's set of predictive-text features, which puts the stock iOS keyboard to shame. The keyboard literally "learns" your typing behavior and adjusts accordingly. For example, if you have large hands and you constantly hit the P key when you're trying to tap the letter O, the keyboard learns your pattern and adjusts itself.
The BlackBerry 10 keyboard's predictive-text features are what truly set it apart from other touch-screen keypads. When you start typing, the software predicts what it thinks you'll type next. But unlike other keyboards, the predicted words appear directly above the next letter in the word you're typing. To finish the word you just slide your finger upward from above the letter you're on.