Don't know if it will help you out or not,
my background is pretty broad with devices ego's,riva's, small kr808's both old and new, leo, box mods, 5v box mods, 5v passthroughs...vv..mechanical mods
have used boge LR, boge SR, original joye 510 cartomizers, kanger 808's, ce2's, the new bloog style 808's, ego t tanks, 306/901/510/801 attys in various resistance from various places.
I have really liked boge cartomizers @2ohm (that is the LR ones) on a 3.7 battery...its just a good vape, for me, it provides the right amount of warmth, for me. So a boge on a real 3.7 battery is good. I also love these echo dual coils on the automatic echo battery...I was NOT that impressed with the smoketech dual coils on an riva or mod battery, I honestly am not sure what the difference is between the 510 and the echo ones but I like the echo ones yet never reordered the smoke tech 510 ones.
I am sitting here going back and forth between my boge 2ohms on a Riva and the Dual Coils on the echo, with nitelite 60/40 bounty hunter juice in both and I think I really prefer the Echo Dual Coil cartomizer. I prefer the Boge over the single coil echo cartomizer that comes with the Echo kit but when it comes time to order more I think I will be getting more of these Dual Coils for the echo.
That being said the Boge cartomizer is a good vape, I have been using that set up for over a year now and, other than dripping now and again for testing new flavors, its primarily what I use.
I would say on warmth they are the same, flavor is the same on both maybe slightly better on the Echo dual coil, vapor production...with this juice...is huge on both. Capacity is obviously higher on the Echo..a lot higher... so you refill less.I find myself having to refill the echo once a day the Boge felt like once every two hours So having used both, and using both right now to compare, I am going to say if it was my money (heck it is my money) the Echo wins by a nose.
If you have to have a manual the Boge is obviously a good choice. I have used manuals a long time though and really have been greatly enjoying the echo auto with dual coils. I had an echo a few months back, before they had dual coils out and it was ok but not good enough to replace any of my current stuff...these are just enough of an improvement to make me stop ordering boge cartomizers and move over to the echo ones.
got my Echo at
North West Vapors. Electronic Cigarettes
get my Boge at
Welcome to MadVapes LLC
everything else came from all over the place.
hope some of that helps.
edit: forgive the rambling nature of the post and capitalization errors just kind of wrote it as it came.