I'm unlikely to recommend Android devices until Google and the hardware providers get the upgrade situation under control. I might make an exception for the Nexus and Samsung devices, but as I write this I have no faith in the rest of the Android ecosystem.
As I often do, let me tell you a story to illustrate this opinion:
When I started with IBM I chose the Motorola Droid Maxx over other Android phones and Apple iPhones.
My choice wasn't arbitrary. I did my research.
The decision of iOS versus Android wasn't a fair fight. KitKat made it easier to be effective. Sharing data between apps was not just easier, it was POSSIBLE on Android. iOS could copy and paste, but not much else.
The Maxx offered excellent battery life (I easily get through a full day on a single charge), a decent screen, an adequate amount of storage, and a rugged build according to my research. Two other major reasons I went with it was that Motorola was a part of Google (at the time) and they listed it as on the upgrade path to Android Lollipop.
14 months later and the only thing still true is the battery life. The screen cracked easily and repeatedly with regular use, the 16GB storage barely keeps up with my minimal workload, and it quickly becomes sluggish unless I close apps and/or reboot.
As for the upgrade to Lollipop, Motorola changed tack yesterday:
We apologize that we will not be upgrading DROID Ultra/Mini/Maxx to Android Lollipop, as we had hoped. We know how important software upgrades are to our customers, and we're very sorry that we are unable to provide the upgrade.
The Maxx is still on 4.4.2 while Marshmallow (version 6) is the release du jour on Nexus. Verizon released few updates (and they're complicit in the upgrade mess) but not at the cadence required. I'm sure my Maxx is vulnerable to many issues long since fixed on other platforms. Corporate mandates and enforces robust mobile security, yet I only use my corporate issued phone for email, calendar, tasks, and internal instant messaging. I don't trust the phone to do much more. I've removed almost all non-stock applications.
My personal phone, the older OnePlus One with the Cyanogen Android flavor at 5.1.1, sees vastly more attention than the Motorola. On the 1+1 I do my social media and podcasts and RSS feeds and whatnot, much of which is work related or adjacent.
The funny thing: I used to carry a second phone to protect me from my benevolent corporate overlords. Now my personal phone protects my clients.
iPhones receive regular updates - some better than others, but Apple updates viable phones for a long time (the iPhone 4S, anyone?). Apps have to keep up, for better or worse. Newer iOS versions addressed the data sharing issue, making Apple devices more useful to me as productivity tools.
The moral of my story is that I'm going through the process to replace the Maxx with an iPhone, but it's a bureaucratic mess that takes time. Now that Motorola came clean, the upgrade path theoretically eases.
What about you? What are your experiences in this space? Have you standardized on iOS or Android or Windows? Or do you struggle with the mercurial nature of the vendors and your users? What about when vendors pull the rug out from under you? Are you considering alternate platforms like Microsoft Windows Mobile and Ubuntu?
Full Disclosure: I work for IBM. IBM and Apple are partners (who would have thought that in the 80's?). My opinions are mine alone.