all androids older than 5.1 will not work with kodi17 - that is a kodi requirement.

getting new box every 3-5 years is quite normal!

q10pro is a pretty normal box for streaming simple apps.

its advantages n benefits lie mainly in the local playback features - incl 4k full BD menu, ddatmos/dtsx, autoframe switching - giving superior video output quality.

if it is on android7, it does not make sense to go back to android5.1, the first version.

it is with android7 that u get a much improved firmware all round, incl DD (AC3) and DD+ (EAC3) audio with kodi17.

some say certain apps can't run on newer android versions... but i hv yet to encounter any.

read my recent posts - i hv posted quite a bit on latest firmwares, new features, new capabilities.
no, it is not.

i hv q16, same age, same android 4.4.2, no more updates.

it can do 4k, dtshdma/ddatmos, still good for most things, most common apps.

what it CANNOT do compared to latest models:

.. 10 bit video (u get audio, no video)
.. HDR video
.. DTSX audio
.. Kodi 17 - this is a specific kodi requirement, need 5.1 or higher.

if u r used to himedia, q10pro (2/16gb) or q5pro (2/8gb) will be a good choice.

kodi will work fine on either of them.

the q5pro and q10pro i mentioned are android7.0.
bear in mind, tech move fast.

there is already android8.0 since august 2017.

in 3-4 years time, android10 would probably arrive.

prices - about rm500, 600 - check garage sales section or visit stores.

android8 is very very new, i dunno any model or box using it.