Are portable travel bidets actually powerful enough to clean properly?

It depends on the type. Across specialist-subreddit discussion, the single most common complaint about cheap portable bidets is weak pressure that leaves users feeling like the device 'didn't do the job.' Electric rechargeable models with a real pump (CubeJet, GoFlow, Vikken Go+) consistently get better pressure marks than passive squeeze bottles, though even the best portables fall short of a plumbed bidet seat. If pressure is your priority, the consensus points to electric pump-driven models.