I wanted to try a portable bike, motorcycle, scooter tire inflator. Let's check out this one by VEVOR. (+) Relatively lightweight at ~1 lb. 0.6 oz (471g) with hose attachment and pouch. Charged up using the included USB-C to USB-A cable in about 1.5 hrs. Adequately bright, built-in LED for lighting up the object being inflated. Contents: electric inflator, 2 inflation hoses (1 spare with pressure relief collar), Presta valve adapter and ball inflation needle, nylon pouch, and charging cable. Auto shut-off. Simple to use: choose different modes for inflating objects: Car, motorcycle, bicycle, ball, custom; set the pressure in PSI (or Bar, kPa, kg/cm³), press start to inflate to preset air pressure. Built-in inflation hose storage compartment. Pumped up my road bike tires to 100 PSI from ~10 PSI in about 1 min. each. (-) A bit bulky at 6.2\" x 2.4\" x 1.7\" ~ the size of a very thick phone or walkie-talkie. At only 1 lb., it's still heavier than a bike frame pump or a CO² inflator with cartridge. A bit loud. Overall: Convenient alternative to frame pump or CO² inflator but takes longer to inflate tires. I can usually, manually inflate a road bike tire in about 30s but that requires manual effort. Too bulky and heavy for a jersey pocket. I would either carry this inflator in a backpack or large seat bag.
Davide 
