In their stated plans, it appears as if older iPhones than a 4S are screwed and Android is a mess without Bluetooth until an upcoming release.
With the Android mess, you have to question these engineers' business strategy in not supporting older iOS hardware and s/w, perhaps back to the "3".
Billions not served.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.