Really like the one-handed phone form factor, but the Box Palma being WiFi only was a deal breaker for me.
Instead I got a Hisense A5 from eBay for ~$130 and after rooting, debloating, and installing E-ink optimized versions of Open source android apps it's a perfect companion for my Boox Nova Air C. With KOReader syncing across devices.
I used to root and unlock bootloaders all the time is it relatively easy for this device does it work on the color version as well? I really want a eink display phone how do you like it?
Highly phone dependent. Some phones have an official process, others have hacks, many others have fuck all.
That's why they were asking if it was an easy process for this specific device.
The instructions are not official, but there are some good community ones https://forum.xda-developers.com/t/hisense-a5-pro-cc-how-to-root-unlock-bootloader.4109021/post-88755703
Bit of warning though, they're using a variant of the A5, not a base A5. The CVE and exploit code in the link should still work (if not patched) but the image files will certainly not, and will fuck up your device if you try to flash images made for a different device, even a variant.