PRIMALS Blue Light Blocking Glasses vs Firmoo Classic Square Blue Light Glasses

Buy the PRIMALS if your main goal is sleep and heavy evening screen use. Its red lenses block 99.9% of blue light, and owners say they fall asleep faster and get relief from dry, aching eyes. The Firmoo is the better everyday pair: 11 g, a neutral clear lens, and a classic square frame you can wear at work without comments. Both are plastic-frame glasses with no prescription, so build is comparable; the PRIMALS takes about a week to get used to, and the Firmoo blocks slightly less blue light.

• Choose the PRIMALS if you wear glasses mainly at night before bed and want the strongest blue light blocking, even if the red tint is obvious.
• Choose the Firmoo if you want a light, neutral-looking pair for all-day computer and TV use that you can wear around other people.