If you grew up on sour candy and want that same experience in a vape, the Sour Rainbow Fruitia X Fifty Bar 20K nails the profile. It opens with a sharp tangy hit of mixed fruit – think rainbow candy with an edge – then softens into a sweet, layered finish that keeps each puff interesting rather than repetitive.

Device Specifications

What Makes This One Different

The standout feature here is the Always Active Boost Mode – unlike devices where you have to toggle settings, this one stays in boosted output automatically. That means every puff delivers fuller vapor and stronger flavor without any adjustment needed on your end.

The built-in anti-burn technology works alongside this to keep the flavor profile clean even when the device is running at higher output. No harsh hits, no burnt aftertaste – just consistent sour-sweet draws from first puff to last.

With 18mL of USA-made e-liquid and a fast-charging USB-C battery, this 5-pack gives daily vapers a reliable, flavor-forward option that doesn’t need babysitting. Open and vape – nothing else required.