These are my two choices (dictated by my company). Tough decision. Both 4G LTE. Stratosphere has removable battery, Droid 4 does not. Stratosphere has better display technology. Droid 4 is larger/heavier, but faster processor and double the memory, newer. Reviews on call quality seem to be generally better for the Droid 4. I just can't understand why a great phone like this locks the battery. I currently have a BB Bold and having that spare battery has really come in handy in some cases.
Recommendations?