Top choice is the SX mini and it's soon to be released cousin with Temp control - but those are ~200.00 devices
Xpro 50 or 65 - nice size and form factor , but maxes at 4.2 V - I need 40 W for my Atlantis off this device to have the same affect as 32 for the SX mini
IPV2 mini is about the same form factor and size as the SX mini and I think they are available for 50-60
My Atlantis at 32 W 4.4 V is perfect for that tank. Billow at 37 is just right (.5 ohm dual coil)
Tried a .3 atty at 45 W and that was excellent- sleep mode to fire is almost instant. Really like this device
The black seems to scratch easily, but that will not be an issue once my wrap arrives
Much better chip then them the first IPV mini.
30 watts just seems to give more voltage, more powerful vape then both the original IPV mini and Xpro
Easy to change the Battery so I don't bother with pass through, but I will charge overnight if I remember to
IPV2 original is nice although they still use screws, but mine have worked fine for many months.
Just a bit larger of a box mod style
I can post pics of them all if needed
Some atty's like the plume have issues on the 510