Chinese dPMR radios comparison

Names	Type	Vocoder / Vocoders	Availability	3.125 kHz steps	Compatibility group	Notes
Puxing PX-508D, Puxing PX-558D, Radtel RT-14D, NRC DigiA	Handheld, no display or keypad	AMBE+2C	Poor	Yes	1
Zastone ZT-9908	Handheld, display and keypad	AMBE+2C	Poor		1
TYT DM-UVF10, Retevis RT2	Handheld, display and keypad	AMBE+2C	Poor		1
Puxing MD-500	Mobile	AMBE+2C	Poor
BFDX/Belfone BF-P108	Handheld, no display or keypad	RALCWI	Poor
BFDX/Belfone BF-P118, Luiton DG-1180	Handheld, display and keypad	RALCWI	Poor
Kirisun S780, Kirisun FP460	Handheld, display and keypad	ASELP	Poor	Yes	2	Poor range - bad receiver sensitivity.
Kydera DP-550S	Handheld, display and keypad	AMBE+2C, ASELP	Poor	No. Rounds to nearest so 446.103125 becomes 446.1		Terrible audio quality - very muffled sound. Does not work with other dPMR radios.
Recent RS208D	Handheld, no display or keypad	ASELP	Good		2
Recent RS209D	Handheld, display and keypad	ASELP	Good		2
Recent RS308D	Handheld, no display or keypad	ASELP	Good		2
Recent RS309D	Handheld, display and keypad	ASELP	Good		2
Sainsonic FM-416, HYND DP320	Handheld, no display or keypad	Probably ASELP	Poor
Recent RS-619D	Handheld, display and keypad	Probably ASELP	Good
HYND DP330		ASELP, AMBE+2C	Good
HYND 500(DPMR)		?	Good			Be careful, they also sell a DMR model of the same radio with the same model number.

Vocoder
The vocoder is the part of the radio that converts your voice into very low bitrate digital data so it can be sent over the radio channel efficiently. Each vocoder will sound different because they make different sacrifices to compress the voice. I wrote a page about different dPMR vocoders here. Some radios are available with multiple vocoders so you have to make sure to get the right one. The only way to tell is usually by trying it, or sometimes the seller or manufacturer will be able to tell you. They often don't know much about their products though.

3.125 kHz steps
For a radio to work on dPMR446 channels it needs this. If not, it will be on the wrong frequency. The radios on this page are not legal to use on PMR446, however it is pretty common for people to program chinese radios to use PMR446 frequencies and as long as you fit in by using the right frequencies and bandwidth then it probably won't be noticed. Therefore, if you're planning to use one of these radios on PMR446 digital frequencies then you should get the one with 3.125 kHz steps.

Compatibility group
This is a term I just made up for this page. Radios in the same compatibility group should be able to talk to each other. This is not guaranteed as I have not tested them all and specifications (including vocoder) are sometimes changed even for the same model number.
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If you're trying to buy any of these radios, aliexpress, eBay and alibaba are usually good places to search. eBay is usually the easiest as they will post from your country but only the most popular radios usually get listed there. Aliexpress is the next best but they post from China so it may take a long time to arrive. I have linked some of the names to the product page on aliexpress.

Please leave a comment below if you have information missing from this page that I can add.