* Carrier Support (GSM vs CDMA)
* "Modes" (Frequencies, bands,whatever you want to call it)
* Sim card size (Normal 3FF, Nano 4FF)
* Removable Battery
* Wireless charging (I must have Qi)
* Fingerprint
Comparison vs other phones (I'd love to compare these vs my Note 3. Yes... 3.) would be nice, but probably a bit beyond the scope of this.Otherwise, awesome tool.