Current option

Current verified colourway

Shop Available Colours

Availability varies by region. The shop link shows current colours and stock.

BEST BACKLIGHT VALUE

Casio

Casio F-105W

A strong F-91W alternative with excellent illumination and familiar basic functions.

4.6 / 5 GOAT Reviews score

Best forA bright backlight in a compact Casio

Skip or reconsider ifThe F-91W is thinner, but this watch has the much better backlight.

Shop Now Watch Review

Buying through this link can support GOAT Reviews at no extra cost to you.

Case size39 × 35.4 × 9.6 mm

Weight21 g

Water ResistanceSplash Resistant

Rating Guide

BatteryCR2016 | Approx. 7 Years

Source: Casio Specifications

The practical verdict

What matters before you buy

A strong F-91W alternative with excellent illumination and familiar basic functions.

The F-91W is thinner, but this watch has the much better backlight.

More from my testing

The verdict combines the full review, real wrist use and the practical questions viewers asked after publication.

Read My WatchCrunch Review

Original GOAT Reviews photos

How the Casio F‑105W actually wears

Tim's original photos show scale, fit and strap details that polished product images cannot.

Casio F-105W and modified G-Shock GD-350 worn outdoors on both wrists — On the wristThe compact F-105W beside the much larger GD-350 gives a useful real-world sense of wrist presence.

Underside view of Casio F-105W and modified G-Shock GD-350 straps — Strap and fitThe reverse angle shows the slim F-105W strap and the modified GD-350 setup rather than repeating the dial view.

High-intent comparison

Still between the Casio F-105W and Casio F-91W?

Choose between stronger illumination and the slimmer, more famous everyday classic.

Compare With the F-91W

GOAT Reviews video

See it worn, tested and explained

See the wrist fit, controls, display and real-world drawbacks that product photos cannot show.

Watch My Review and Unboxing

Not sure this is your best fit?

Get three recommendations based on your priorities.

Answer three quick questions about style, priorities and budget. Results may include this watch when it fits your answers.

Open the Watch Finder