Are cheap backless boosters as safe as expensive ones?

Not always, according to the labs. BabyGearLab reported lower crash-test analysis results for the Graco TurboBooster backless line, while it gave the Maxi-Cosi RodiSport its best crash-test analysis among boosters. A booster's core job is belt positioning, so fit-to-child and fit-to-vehicle matter most — but if crash performance is your priority, the higher-trust testing points to seats like the RodiSport and high-back Chicco/Britax options.