Casio F-B100W: Official Specs, Price & Release Date (1A/1B/3A)

Disclosure: This article contains affiliate links. If you buy through our links, we may earn a commission at no extra cost to you.

Ready to buy? Confirm the exact F-B100W suffix, seller warranty, delivery region, and return terms before ordering. If your preferred color is unavailable, compare the currently listed alternatives below.

Check current F-B100W availability and prices on Amazon →

Looking for F-B100W-1A, 1B, or 3A? Use our buyer checklist to compare the exact model, seller terms, shipping, and availability before ordering.

Compare F-B100W availability by model →

The Casio F-B100W is attracting attention because it brings Bluetooth connectivity and step tracking to a compact, classic-style digital watch. This guide separates confirmed information from details that may vary by market, so you can decide whether to wait, compare versions, or look for a similar Casio model.

What is confirmed about the F-B100W?

• The F-B100W is a digital Casio watch designed around a compact retro-inspired look.
• It is associated with Bluetooth smartphone connectivity and a step-tracking function.
• Searches commonly reference variants including F-B100W-1A, F-B100W-1B, and F-B100W-3A. Exact suffixes, availability, and specifications can differ by region.

Always confirm the exact model number on the retailer or official Casio product page before ordering. Product names, colors, release timing, and regional model suffixes are not always identical.

Bluetooth: what it is likely used for

On comparable Casio Bluetooth-enabled watches, pairing with the CASIO WATCHES app can support automatic time adjustment and make settings such as alarms and world time easier to manage. The app also supports activity information for compatible step-tracking models. Treat the F-B100W’s final app functions as model-specific until Casio publishes the product manual for your region.

Step tracking: what to expect

A step tracker is useful for everyday awareness rather than medical measurement. If step counting is your main reason to buy, look for the official manual and confirm the display range, goal features, app syncing, and battery information for the exact F-B100W version you are considering.

F-B100W-1A vs F-B100W-1B vs F-B100W-3A

At this stage, use the suffix primarily to identify a colorway or regional listing. Do not assume that a suffix automatically changes the watch module or Bluetooth features. Compare the retailer’s product photos, model number, warranty region, and the official product listing before purchase.

Who should consider the F-B100W?

• Buyers who like small, lightweight digital Casio watches but want basic connected functions.
• People who want a simple daily step reference without wearing a large smartwatch.
• Collectors interested in a modern take on the compact Casio digital-watch style.

Check current availability

Search current Casio F-B100W availability on Amazon

Compare the 1A, 1B, and 3A listing suffixes in our F-B100W Amazon availability buyer’s guide.

Before you buy

Check the product page for your exact market, not only a social-media post or an early listing. Confirm the model number, strap and case materials, water resistance, mobile-app compatibility, warranty, and final price. This is especially important for new Japanese releases sold internationally.

Quick buying decision: F-B100W or another Casio?

• Choose the F-B100W if you want a compact digital watch and the exact local listing confirms Bluetooth and step tracking.
• Choose a classic Casio digital watch if low price and simple timekeeping matter more than connected functions.
• Choose a G-SHOCK if shock resistance, outdoor use, or a larger case is more important than a slim retro-style design.

For an inexpensive non-connected alternative, see our Casio watches under $50 guide. For the exact F-B100W suffix and marketplace checks, use the F-B100W buyer’s guide.

Final check before checkout: verify the suffix, app compatibility, warranty region, delivery date, and return policy on the listing you are about to buy.

Official specification snapshot (Japan)

Casio’s Japanese product page for the F-B100W-1AJF confirms that this is not only an early marketplace listing: it is a 2026 model with mobile-link time adjustment and a daily activity focus. Specifications and availability can differ outside Japan, so use this section as a practical reference and verify the listing for your delivery country.

Source: Casio Japan F-B100W-1AJF product page. Check this source and the seller’s listing before purchase, especially for warranty coverage and model suffix.

Best purchase route by priority

• Want a specific color: start with the 1A, 1B, and 3A availability guide, then compare the exact suffix on the listing.
• Want the lowest-risk international order: choose a listing that clearly states the model number, estimated delivery date, return policy, and seller warranty.
• Want fitness features first: confirm the app compatibility and step-count functions on the official page for the market where you will use the watch.

Compare F-B100W-1A, 1B and 3A purchase options →