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Original FITOVER Blue Light Blocking Glasses vs Zenni Optical Blokz

Buy the Original FITOVER if you want maximum blue light blocking and wear prescription glasses, since it blocks 100% of blue light from 380-500nm and slips over your existing frames. Choose Zenni Blokz if you want a normal-looking pair of prescription glasses with blue light filtering built into the lens and full UV protection. The FITOVER is the cheaper, purpose-built sleep aid; Zenni is the everyday pair you wear all day.

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Original FITOVER
Original FITOVER Blue Light Blocking Glasses

Original FITOVER Blue Light Blocking Glasses

4.8· 1,088 ratings

Choose the Original FITOVER if you need strong evening blue light blocking over your prescription glasses to protect sleep, and you accept a bulky amber fit-over frame.

Pros
  • Blocks all blue light from 380-500nm, the strongest figure in this pair
  • Wears over existing prescription glasses, so no new prescription needed
Amber lens keeps more color perception than a red lens
  • Buyers report better sleep and less eye fatigue at night
  • Lowest-cost option of the two
    • Cons
    • Buyers report pressure on the nose bridge and pinching at the temples
    • Stiff TR90 frame can't be bent wider, causing headaches for some
    • Doesn't cover peripheral vision fully
    • Amber tint shifts colors, so it's not for color-critical work
    • Bulky look over glasses
    Zenni Optical
    Zenni Optical Blokz

    Zenni Optical Blokz

    Choose Zenni Blokz if you want blue light filtering built into everyday prescription glasses with anti-reflective coating and 100% UVA/UVB protection.

    Pros
    • Blue light filtering built into prescription lenses, no second pair to carry
    • 100% UVA and UVB protection
    • Anti-reflective coating reduces glare
    • Clear lens keeps colors close to normal for daytime wear
    • Frame made to your prescription and fit
    Cons
    • Filters only up to 420nm, weaker than the FITOVER's 380-500nm range
    • Requires a prescription and Zenni order process
    • Costs more than a fit-over pair
    • Less suited to strict evening melatonin protection

    What separates them

    Original FITOVER Blue Light Blocking GlassesZenni Optical Blokz
    Blue light blockingBlocks 100% of blue light from 380-500nm plus 43% of green light from 500-570nmFilters blue light up to 420nm
    How it's wornFit-over frame worn on top of prescription or reading glassesPrescription lenses made to your own prescription
    Lens tintAmber SunDown lens shifts colors to a warm hueClear lens with a blue-filtering polymer, near-normal color
    UV protectionUV lens type listed, no UVA/UVB figure given100% protection against UVA and UVB rays
    Frame fitAbout 150mm wide, stiff TR90 that can't be bent wider; buyers report pinching and sore earsFull-rim frame built to your measurements and prescription
    Best time of dayDesigned for evening use to support melatonin and sleepEveryday all-day wear, including screen work
    CostBudget fit-over, the brand's most cost-effective blue blockerPrescription eyewear pricing, higher than a fit-over
    Lens materialAcrylicAdvanced polymer built into the lens with anti-reflective coating

    Price history

    • Original FITOVER Blue Light Blocking Glasses: lowest $16.96 on Nov 2 at Amazon.
    • Zenni Optical Blokz: lowest $14.95 on Nov 2 at Zenni Optical.

    Prices at every store

    Original FITOVER Blue Light Blocking Glasses

    • LIFE MarketCheck price at LIFE Market
    • AmazonCheck price at Amazon
    • BlockBlueLightCheck price at BlockBlueLight
    Prices and history →

    Zenni Optical Blokz

    • Zenni OpticalCheck price at Zenni Optical
    Prices and history →

    Specs compared

    SpecOriginal FITOVER Blue Light Blocking GlassesZenni Optical Blokz
    Lens materialAcrylicadvanced polymer incorporated into the lens
    Blue light blockingBlock 100% blue lightup to 420 nm
    Frame materialTR90—
    Frame widthabout 5 15/16 inches (150mm)—
    Lens widthabout 2 1/6 inches (53mm)—
    Lens heightabout 1 13/16 inches (46mm)—
    Bridge (DBL)about 1/2 inches (13mm)—
    Temple lengthabout 5 11/16 inches (145mm)—
    Rim TypeFull Rim—
    DepartmentWomen's—
    ColorTortoise—
    ShapeRectangle—
    Show all 17 specsShow fewer specs
    SpecOriginal FITOVER Blue Light Blocking GlassesZenni Optical Blokz
    StyleFashion—
    Lens TypeUV—
    UV protection—100% protection against both UVA and UVB rays
    Coating—anti-reflective coating
    Frame Type—Full Rim

    What reviewers say

    Original FITOVER Blue Light Blocking Glasses

    Owners rate these highly at 4.8 out of 5 from 1,088 ratings. Many say they fall asleep faster and feel less eye fatigue at night. The main complaints are fit: pressure on the nose and tight arms.

    Pros
    • Helps wearers fall asleep faster
    • Reduces night-time eye fatigue
    • Fits over prescription glasses
    • Blocks light from the sides
    Cons
    • Uncomfortable over prescription glasses
    • Nose bridge presses down
    • Tight arms cause headaches and sore ears
    • Stiff frame can't be widened

    Zenni Optical Blokz

    Owners generally describe Blokz as a cheap way to add blue light filtering to prescription glasses, and many report less eye strain during long screen sessions. Complaints tend to focus on lens tint, frame durability and the do-it-yourself ordering process.

    Pros
    • Noticeably less eye strain after long screen days, according to many owners
    • Low cost compared with blue light glasses from optical stores
    • UV protection and anti-reflective coating included
    • Wide frame selection
    Cons
    • Slight yellow or warm tint visible in some lenses
    • Frame hinges and materials feel cheap on budget models
    • Prescription or fit issues when measurements are entered wrong
    • Shipping and remake waits reported by some buyers

    Questions and answers

    Which is better for sleep?
    The Original FITOVER. It blocks 100% of blue light from 380-500nm and 43% of green light, and it's designed for evening use. Zenni Blokz filters only up to 420nm, which is fine for daytime screen comfort but weaker for melatonin protection.
    Can I wear the FITOVER over my prescription glasses?
    Yes, that's the design. It's about 150mm wide and fits over reading or prescription glasses. Some buyers report the frame pinches at the temples and presses on the nose bridge, and the stiff TR90 can't be bent wider.
    Is Zenni Blokz worth the extra cost?
    If you need prescription glasses anyway, yes. You get blue light filtering, anti-reflective coating and 100% UVA/UVB protection in one pair. If you only want evening blue light blocking, the FITOVER does more for less.
    Which blocks more blue light?
    The Original FITOVER. It blocks 100% of blue light from 380-500nm plus 43% of green light. Zenni Blokz filters up to 420nm, a narrower range.
    Do either protect against UV?
    Zenni Blokz states 100% protection against UVA and UVB. The FITOVER lists a UV lens type but gives no UVA/UVB figure.
    Which is more comfortable for all-day wear?
    Zenni Blokz, since the frame is made to your prescription and fit. The FITOVER is a bulky over-glasses frame that buyers say causes sore ears and temple pressure with daily wear.

    More comparisons

    • Original FITOVER Blue Light Blocking Glasses vs Lumadux Anti Blue Light Glasses
    • Original FITOVER Blue Light Blocking Glasses vs Gunnar Intercept Gaming Glasses
    • Lumadux Anti Blue Light Glasses vs Zenni Optical Blokz
    • Gunnar Intercept Gaming Glasses vs Zenni Optical Blokz

    Buying guides that pick them

    • Best blue light blocking glasses for screen use