Among refillables, the XROS 3 Mini and Gotek Nano set the standard: genuinely tiny, all-day batteries, proper flavour. On the prefilled side the SKE Bar 15K keeps the classic bar shape while packing weeks of liquid. None of them ask you to accept a weaker vape for the size.
Usually once a day with modern cells, and USB-C fast charging means a coffee break covers an evening out. The days of a mini dying by lunchtime ended when draw-activated chips got efficient; standby drain is now close to zero.
They are arguably the best tool for it: the size and hand-feel are the closest match to a cigarette, and paired with a 10mg or 20mg nic salt the draw completes the picture. Our starter kit guide narrows it to a shortlist.