StillHere, please list the features you're talking about.
I'd like to know.
Hi, sure. Well there may be more because I only had a quick read, but some things are as follows:
Nitecore, I like: the higher lumens / the concept of varying the strobe sequence so as to confuse more / the tail switch protruding a bit more, seemingly a longer battery life for the lowest setting but that's only a minor thing,
Olight: I like: the magnetic charger (do not like a usb port) / the ability to choose a couple of different function versions for how the tail switch activates regarding turbo and strobe... both being activated from the tail switch depending on press travel is how I have it. This might be able to be done on the Nitecore but the marketing wasn't clear (for me) on this.
Both: They both seem to be of a suitable good build quality and design. The light setting control inputs seem similar. I think they can both use different batteries, but if not they should. Without getting into looking at the specifics I couldn't say much more about the similarities.
Lastly, the Nitecore mentions a lot about a long "throw", but I'm of the opinion that for the purposes and circumstances I envision that one may need to use such a light for things that happen other than general walking around, it would be a distance of ten meters or less (see how I choose my words carefully, no violent talk going on here). A long throw with a tight beam probably won't be a good feature because one wants to get the main spot on target, so to speak, very quickly and cover enough area that evasion is difficult. So candela is important imo when considering what one may need to use the instrument for. I haven't yet seen what the candela is for the Nitecore, but I think the Olight is about 24,000 or something like that, could be wrong. Regardless, the desired result is to have a wide enough spot beam but not a flood light. The Olight is very good at this point with the spot being about 1m across at about 3 meters. . I suspect the candela could be tightened up a tiny bit and it might still be as good and have a longer throw for general use, but it's pretty good at whatever it is now for the above mentioned proposed use. That's all I can remember right now without really getting into researching both. Hope this helps.
I just want to mention for the forum that I've tried to be careful with my words regarding this subject. I had to say some envisioned usage so as to explain why I like some specs, but otherwise hopefully it isn't of a violent nature,
Cheers,
Rob