27oz Wide Water Bottle with Loop Cap vs Aquamira Frontier Flow Filtered Water Bottle: which is safer?

Where these two actually differ

• We flag Cap or closure contamination and Bacterial or mold growth from moisture retention on the Klean Kanteen and not on the Mira.
• We flag Plastic housing leachables (BPA/BPS/phthalates), Bacterial growth in filter cartridge and housing and Filter cartridge material composition (activated carbon quality and binder) on the Mira and not on the Klean Kanteen.
• The Klean Kanteen is 18/8 stainless steel, no interior coating where the Mira is Plastic bottle with carbon/activated carbon filter cartridge, which is most of the difference in these two grades.
• The gap is 30 points, wide enough that this is not a close call, and the Klean Kanteen is the one to buy.
• We are less certain about the Mira grade, at 62% confidence against 92%, because it discloses less.