These Chinese Cheap radios as some call them are not to be compared with name brands such as Icom, Yaesu, Kenwood etc. The top 3 radios are pricey but you are getting a solid radio with a real warranty and most importantly, a good track record.
I think you may be a little confused on the various types of Digital out there. No worries though, we all at one point were confused with all these different formats of digital communications.
Below is a brief breakdown from the most popular to least.. ...
DMR (Open Sourced to various equipment makers )
DStar (Proprietary to Icom equipment only)
C4FM (Proprietary to Yaesu only)
The Tytera, Motorola, Hytera, CA rigs are some of the brands that can ONLY be used on the DMR system or with a SharkRF device.
DStar can only be used with Yaesu rigs and not compatible with DMR or C4FM.
C4FM can only be used with Icom rigs and not with DMR and DStar.
C4FM rigs can be used with SharkRF to connect to the Brandmeister network. Usually the most the common radio is the MD 380.
There is a device called SharkRF by Open Spot that allows any DMR or C4FM radio to be used on those 2 systems only. An example of this is : DMR radio to C4FM network and vice versa. With this SharkRF that is connected to your home or mobile internet you are able to connect to any of the Brandmeister repeaters worldwide. So let's say you are in the middle of Alaska with no DMR repeaters available anywhere close. Assuming you have either internet on your phone or house you can use your dmr radio connected to SharkRF to talk to anyone worldwide.
I know this is confusing but in my opinion I have the following setup.
Tyt MD 380 with the hacked version of MD 380 tools. This will allow me to get onto the DMR repeaters available on DMR Marc repeaters worldwide. This network has the most user's.
With this radio, I also have the SharkRF connected when I am mobile and not within range of a Repeater. I easily dial up a zone and bam. I connected.
I am planning on getting the MD 2017 but am waiting for the price to drop and for them to fix the antenna sturdy issue that is affecting that radio.