Mini models remove the screen and manual menu for a simpler auto-draw experience. Full-size models add a button and more setting control. Battery capacity does not always follow size: both XROS 5 models use 1500mAh batteries, while the XROS 4 pair uses 1000mAh batteries.
XROS 4 kits were supplied with COREX 2.0 pods, while the included 0.6Ω and 0.8Ω pods in the XROS 5 generation use COREX 3.0. The four devices support the wider 0.4Ω–1.2Ω XROS pod range. Shop the live COREX 2.0 replacement pods and COREX 3.0 replacement pods, checking the resistance guidance before ordering.
Focus on screen and controls, battery capacity, charging rate, output adjustment and the pod supplied in the UK box. All four featured models already share 2ml top-fill pods, adjustable airflow and Type-C charging, so repeating those shared features does not help distinguish them.