[Thomas Dewangga]

Okay, please help me to decide these two OS. I'm running W10M latest preview build (.63) on my 920. It works pretty good and fast. I just don't like the heat and battery life. It's so poor compare to 8.1.
As long as I join this Insider thing, I always want to go back to 8.1. And I did it for about 4-5 times with WDRT. After I back to 8.1, I just found that no matter what build I'm running in my 920, 8.1 always faster and responsive. I presume maybe because the lack of features on 8.1 so the OS seems so light (and friendly), or the aging hardware on 920 (well, compare to 640 or newer devices).

Base on that reason, maybe I should stick with 8.1. And if I want W10M, I'll just go buy the new device like 950, 550, 650(if this real exist), or maybe from other OEM which build the phone base by W10M.

Frankly I love W10M. The reason why I tempted to upgrade to 10 again after I back to 8.1 is the Groove, Settings, the better font, the keyboard, all the MSN and UWP apps, and the ability to customize start screen. I love it and I really miss it on 8.1. But the performance, the responsiveness, the battery life, the heat, is worst than 8.1.

Can someone tell me that newer devices bring more performance than my 920? Should I stay in 10 or downgrade to 8.1? I really need help to decide. (sorry for the long post)

[jodeltje]

on my 830 performance is great, better than 8.1, especially the browser in 10 is awesome.

[Tonio78]

On my 930 it's the same: Equal or better than 8.1.

[Zhenren Zhou]

Most people say the battery life and HEAT issues have been fixed in build .63. I would suggest staying with W10M for now, as everything is improved or equal compared to WP8.1. I would say try to enjoy the improved part of the OS.