Mohamed mooka, an important thing in order for others to be able to discern key details in whatever you wish to show is to take good photographs. Take close up shots where the screen is filled with whatever you want to show and not whatever else. Light up the subject
a lot. Focus properly. Take multiple shots, select the best looking one. You do not always need to use the gazillion maximum megapixels of the camera, much less if most of them are wasted in “whatever else” (takes up internet bandwidth), so edit and trim off excessive leftovers. Stock camera applications are a piece of
sheesh, which doesn't helps. A nice smartphone in philistine operator hands takes crappy pictures. An obsolete smartphone in wise man's hands takes awesome ones.
Example of a driver closeup picture I took with my obsolete smartphone with Open Camera, good lighting and an additional convex lens on top of my camera lens:
Took me a handful of minutes to get this frame, of course.
Back on topic
D LoL!), as others have said it may not be that easy to identify a knock-off, as they say the devil's in the details.
An easy and relatively safe way if you have a regulated
mod could be to test in it up to whatever output power can the battery handle, but it will require for you to progressively increase the power between puffs and to monitor cell temperature while watching for early cut-off warnings. Yo do not need to go above the maximum VTC5A rating by Mooch which for this cell may be ≈80W average maximum power, this means if you reach up to 70 - 75W at the coil and it
still behaves good it likely is genuine.
By the way, yesterday my deal alert alarm ringed so I had to grab a VTC5A 6-pack for barely $25. Once they reach home from china on the slow boat we'll see.
Cheers everyone