Nice. Is that the smartphone app version of dashcommander (palmer performance?) I've used the laptop version myself, and I can definitely read knock retard and boost air temp without a CAN buss connection. Check with palmer if it's their software (looks like it) because there are mazda specific extensions to the logging dataset that will let you read all the usuals plus pretty much anything mazda have added as a proprietary value. Even things like air-conditioning duty cycle if you're interested in that.
Personally, I would advise against habitually leaving a bluetooth OBD device attached, as it is a security concern. That might sound paranoid, but let me tell you a story.
I had some sensitive documents that I foolishly left in locked vehicle outside. Late in the night I hear something and go to look but don't see anything. In the morning I discover that the vehicle has been entered and said documents and some other items are missing. Bizarrely some fairly valuable electronics are discarded in the yard. I may have disturbed them the previous night I suspect. I thought the vehicle was locked but figure I must have been mistaken. The vehicle has an OEM "high spec" alarm.
At the time I was regularly performing data logging. By sheer chance I spotted the value for the number of keys associated with the vehicle. I completely freak out when I see it reads three keys. I've only ever had two. That night, and this time completely certain the vehiclke was locked, it is unlawfully entered a second time. This time nothing was taken, but the drivers door was ajar in the morning. I contact police etc and pull out the data logs and do a fresh read and am slightly horrified to discover that the number of associated keys is now two.
My suspicion is that I disturbed them the first time and the second entry was for the purposes of erasing the evidence left in the ECU.
Point is that bluetooth or wifi - gen1 bluetooth especially - is a wireless gateway to your ECU. I absolutely would not trust these devices to be secure. I was using a USB to OBD2 interface at the time that also provided a bluetooth alternative to USB-based serial connections.
After having the vehicles security codes all reset by a Mazda agent I disabled the bluetooth interface by physically removing the bluetooth transciever from the circuit board of the interface (it was attached as a daughter board by what is probably a TTL singnal-level RS-232 serial interface.) A few months later I had the security codes reset a second time by a different agent in a different city.
Moral of the story : Don't forget this device has security and safety implications. It may have been a bizarre coincidence or misread of data on my part but I don't think so.
"Blue Meanie" 2007 Aurora Blue MPS 3 - 18x7.5+48 Enkei RPF1 - 225/45R18 - 3.5" ETS TMIC - CPE stg 2 mount - HKS/CPE BPV - 2XS inlet - 2XS short shift - 2XS turbo manifold - Hypertech tune - Leather/Aluminium handbrake - Momo shifty knob - 7" touchscreen - JDM Mazda Retractable dashtop screen assembly - PC based GPS and instrumentation - 36AH reserve battery + isolator - TEIN Street Advanced coilovers 1" drop - Superpro bushings - 220Kw/410Nm.
"Lipstick" 2013 Velocity Red MPS 3 - CPE TMIC - CPE stg 2 mount - COBB Stage 1 98 octane tune - COBB shifty knob - 2XS short shift