PRIMALS Blue Light Blocking Glasses vs Gunnar Enigma Onyx

Buy the PRIMALS if your main goal is blocking the most blue light before bed or during long screen days; its red lens blocks up to 99.9% and owners report faster sleep and less eye strain. Buy the Gunnar Enigma if you want a normal-looking pair you can wear all day, need a prescription (up to ±5.00), or want a choice of lens tints. The PRIMALS is a single-purpose sleep and screen tool with a strong red tint; the Gunnar is a broader eyewear product with more frame and lens options but a milder blue-light filter.

• Choose the PRIMALS if you want maximum blue-light blocking for evening screen time and better sleep, and you can accept a visible red tint.
• Choose the Gunnar Enigma if you need prescription lenses, want clear or amber tints for daytime wear, or prefer a rectangular onyx frame that looks like regular glasses.