To be accurate, Planet announced "Final Hardware Specification" in September 2017:
"Gemini's CPU has been upgraded from Mediatek's Helio X25 to Helio X27. The Helio X27 processor is an update to the X25 processor and has faster main cores and a faster GPU. The fastest cores are now running at 2.6 MHz. It has overall better power consumption characteristics than the X25 chip."
**and also dual SIM with an eSIM along with a physical one excluded from the early X25 ones.
Then some early backers who felt they had been the enabling support and the longest wait felt a bit aggrieved that they didn't get this and later backers did. This caught Planet by surprise too, they were not expecting it and did apologise.
The key mat was a self fit, involving removing and refitting all the keys. It didn't go well for some.
I do love my Gemini (a nice later one) but I'm not diving in on this.