
Casio F-91W-1YER vs Benyar BY-5140: which one suits you?
The two differ in 4 of the specs we have recorded, and the Casio F-91W-1YER is cheaper by SAR 65 (prices checked 10 Nov 2026).
Which one should you choose?

Choose the
Casio F-91W-1YER if you care about:- Paying less: cheaper by SAR 65

Choose the
Benyar BY-5140 if you care about:- Higher water resistance: 30 m vs 10 m
The deciding difference here: water resistance and price.
Compares recorded specs; a missing spec does not mean the feature is absent.


Key differences
Display type
DigitalAnalogCase diameter
35 mm45 mmCase shape
RectangularRound
Specifications side by side
Scroll the table sideways to see the rest.
| Spec | ![]() | ![]() |
|---|---|---|
| Reference price | SAR 55 | SAR 120 |
| Display type | Digital | Analog |
| Case material | — | Stainless steel |
| Water resistance | 10 m | ✓ 30 m |
| Glass | — | Hardlex |
| Movement | Quartz | Quartz |
| Case diameter | 35 mm | 45 mm |
| Case shape | Rectangular | Round |
| Strap material | — | Leather |
| Clasp type | — | Buckle |
| Weight | — | 80 g |
| Date window | — | Yes |
| Colour | Black | — |
| Warranty | — | 2 years |
| Chronograph | Yes | Yes |
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Similar comparisons
Direct comparison questions
What is the difference in movement between the Casio F-91W-1YER and the Benyar BY-5140?
No difference here: movement is Quartz on both.
What is the difference in case diameter between the Casio F-91W-1YER and the Benyar BY-5140?
Casio F-91W-1YER: 35 mm; Benyar BY-5140: 45 mm. A higher value is not necessarily better for you.
What is the difference in water resistance between the Casio F-91W-1YER and the Benyar BY-5140?
Water resistance is higher on the Benyar BY-5140: 30 m vs 10 m on the Casio F-91W-1YER. If this spec is your priority, the difference favours it.
What is the difference in display type between the Casio F-91W-1YER and the Benyar BY-5140?
Casio F-91W-1YER: Digital; Benyar BY-5140: Analog. This is a spec difference, not a verdict that one is better overall.









