Buy on Aliexpress — GuoPhone V19
Price — from 85 USD
Phones with increased protection (IP67, IP68) require longer battery life, and so for these models make optimal use of the most energy-efficient processors. For this reason, most of these phones still produce
— very economical processor at the same time having a full 2 cores, but unfortunately, it is quite old, and it can not be equipped with more than 512Mb of RAM.
Next similar processor, released by Mediatek in 2016 — MTK6580
, already has 4 cores and the amount of available RAM memory to 2 Gb — it is much more interesting, and most importantly — more urgent, but phone manufacturers have only recently begun to produce protected phone numbers on the new processor — one of them and became GuoPhone V19