247Bom 1Day Gray vs Tobetter Big 1Day Black: Which Daily Lens?
By Buy Colored Contacts for Brown & Grey | LENSTOWNUS | Published: 2026-11-01
Category: Comparisons
Compare 247Bom 1Day Gray and Tobetter Big 1Day Black on diameter, water content, and daily convenience to pick the right 1-day colored contact for your eyes.
Quick answer
Choose 247Bom 1Day Gray if you want a smaller, lighter-feeling lens with a natural gray tint; choose Tobetter Big 1Day Black if you want a larger diameter and a bolder black look for a bigger-eye effect.
Size and effect: 14.2 mm vs 14.5 mm total diameter
The 247Bom 1Day Gray has a 14.2 mm total diameter and a 13.4 mm graphic diameter, while the Tobetter Big 1Day Black measures 14.5 mm total with a 13.5 mm graphic diameter. That 0.3 mm difference in total size is small on paper, but it changes how much the lens extends beyond your natural iris and how noticeable the color looks.
Both lenses share an 8.6 mm base curve, so the fit on the eye should feel similar. The main decision is whether you prefer a subtler gray that blends more gently or a black lens designed for a more defined, larger-eye appearance.
Comfort and material: same water content, same daily wear
Both are 1-day lenses made from PC-Silicone with 50% water content, so neither has a comfort advantage on paper. The daily format means you open a fresh pair each morning and throw them away at night, which removes the need for cleaning and storage.
Because the material and water content match, your choice should come down to the look you want and how the slightly larger diameter feels on your eyes. If you have not worn 14.5 mm lenses before, the Tobetter may take a little getting used to.
Trade-offs to weigh
- Natural vs bold: Pick the 247Bom Gray for a softer, more understated color; pick the Tobetter Big Black for a stronger, more defined eye look. Decide how much color contrast you want before comparing sizes.
- Smaller vs larger diameter: The 247Bom is 14.2 mm total and the Tobetter is 14.5 mm; the extra 0.3 mm on the Tobetter can make the lens more visible on the eye. If you have smaller eyes or rarely wear enlarging lenses, start with the 247Bom.
- Same daily convenience: Both are 1-day, 10-piece boxes with 50% water content and PC-Silicone material, so there is no comfort or care difference to factor in. Base your choice on appearance and diameter, not on material.
Product facts
- 247Bom 1Day Gray: 14.2 mm total diameter with a 13.4 mm graphic diameter and 50% water content. The smaller graphic zone gives a more natural gray effect that is less likely to overwhelm your natural eye size.
247Bom 1Day Gray - Tobetter Big 1Day Black: 14.5 mm total diameter with a 13.5 mm graphic diameter and 50% water content. The larger overall size creates a bigger-eye look, which suits people who want a more dramatic black finish.
Tobetter Big 1Day Black
Who should choose which
Best for
- People who want a natural gray tint for everyday wear
- First-time 1-day colored contact wearers who prefer a smaller lens
- Anyone who wants a subtle change rather than a dramatic look
Not for
- People who want a bold, obvious color change
- Wearers who prefer a larger diameter for a bigger-eye effect
- Those looking for a black lens rather than gray
