Some people say, I am a newbie on the retro game handheld,
I have no idea about what are the exact differences between 
RK2020, RGB10, and ZPG Pro. For those people who have trouble making a decision.
I will compare the 
RK2020, RGB10 and ZPG Pro specifically in this video
do not miss it if you are interested in.
Welcome back to 
Panda Mimi
Let's get started and take a look at RK2020,
you can get a black or metal version on their website
but I prefer the translucent purple housing
it's unique with colorful 
buttons combined
The panel has a great sense of touch
and the shell is lightweight, just carry it on your journey.
Now we get the RGB10, 
whether the color or the button layout, 
It brings a strong Nintendo style.
To be honest, with the same plastic material, it's a little bit ordinary and it lighter 
than RK2020. 
It takes more effort to pick ZPG Pro up
OK,
 just kidding!
The silvery-gray ZPG Pro has an aluminum shell 
with some glitters on the panel,
the edges are sleek and smooth. On the market
right now,  there are a lot of retro consoles with 
great build quality to the corners. Edges of RK2020 
and RGB10 are angular 
but ZPG Pro is more rounded, feels better in my hands. With the same thickness,
ZPG Pro is a little wider than the two plastic devices. 
This is a dimension comparison.
Let's go ahead,
you may think ZPG pro has a large screen, hold on,
you have to see the bezels. 
Why are the bezels are so large? 
In fact,
all the units feature a 3.5inch screen.
I mentioned it in the video of ZPG Pro,
such a large bezel brings an illusion when gaming that the screen of ZPG Pro is smaller than that 
of RK2020 or RGB10. 
I turned all the screens' brightness to 50% to compare how's the display looks under the same status. 
By contrast,
ZPG Pro shows a brighter display, whilst, RK2020 is darker.
With an identical resolution of 320x480, 
ZPG Pro has a better picture quality and viewing angle 
than RK2020
 I just feel the characters showed on 
RK2020 are fuzzy, 
That's not good for my eyes.
RGB10 also has an excellent image quality.
From the screen shows, it's apparent that RK2020 has a warmer color tone
while the others are cooler and more brilliant. 
Next,
we will talk about the buttons. 
RGB10 and ZPG Pro have two more custom function buttons 
than RK2020. 
ZPG pro 
has a volume button.
I prefer the four concave face buttons of RK2020, 
but there's one thing I want to complain about
 is the gap, 
the button sits in, 
it's easy to be moved around.
Direction pad of ZPG Pro  it's bigger than RK2020, 
is low-profile with a concave in the center,
it's bigger than RK2020, 
and more comfortable when my thumb 
covers it
The d-pad of RK2020 sits
very high 
and I feel it's hard to press. 
RGB10 has a well-regulated, 
soft d-pad, and comfortable to press. ZPG Pro has a thick analog stick, can be pressed down. 
I feel the joystick of RK2020 
and RGB10 will be slightly slack.
The shoulder buttons of RK2020 are more suitable for me, 
fingers can perfectly control two pairs of buttons, 
they are still a bit rattling, 
but much better 
than original. The shoulder button of RGB10
 is not very easy to press and it doesn't give loud clicks.
When playing games on ZPG Pro, 
I don't know if I pressed R1 or R2
but they can offer crisp feedback, 
I am quite satisfied with that.
RK2020 
has a USB Type-A 
port used for connecting 
WiFi Dongle. RGB10 get an 
OTG port. 
ZPG Pro has an OTG port, and it has an HDMI output port 
but doesn't work. 
Other configurations are similar, so I won’t go into detail.
From Rock Chip's RK3326, their performance almost the same, 
so I'll show you some video clips.
In the end,
 I sort out the pros and cons of the three devices. 
Okay,
those are just some using experiences from my perspective and you can share your opinions in the comments section.
