Reviews of radio watch sync

By: jin ning

List of user reviews and ratings for radio watch sync

Total ratings

4.90 (Rating count: 5,464)

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Review summary

Users largely praise Radio Watch Sync for enabling quick syncing across many watch brands, but note ads/paywall and usage frictions (placement/orientation/volume) with mixed reliability depending on location and model. It’s a valuable workaround for hard-to-receive signals, yet not universally consistent.

Pros

Works well to sync multiple radio-controlled watches that previously wouldn’t receive signals
Compatible with a wide range of brands/models (Citizen, Casio WaveCeptor, G‑Shock, La Crosse, etc)
Fast results, often completing in minutes and can sync in a single session
Clear guidance and steps improve success and user confidence
Useful as a workaround when automatic radio reception is weak or unavailable

Cons

Ads and a paid upgrade are required for continued use, and ads can be aggressive
Requires precise usage: near-field communication, specific watch orientation (e.g., bottom speaker facing phone, 9 o'clock position) and high volume for best results
Results can be inconsistent depending on location and watch model/antenna availability (not all regions/watches sync)
Some users report the app failing to run after multiple uses without upgrading or issues with connectivity to certain antennas
Overall reliability can vary, making it feel finicky for some users

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User Reviews

Recent rating average: 4.90

All time rating average: 4.90

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4% (6)

Date	Author	Comment
2026-05-19	me*****	works
works
2026-05-19	Ar*****	very sensitive..requires a complete quiet room without fan etc.real world radio signal is not like that. Needs to be easier to use.
very sensitive..requires a complete quiet room without fan etc.real world radio signal is not like that. Needs to be easier to use.
2026-05-18	Ma*****	This app works wonders. I work nights and in a 35 story building downtown Phoenix so going to the roof is a good but cant always. I have a 2021 Citizen Promaster Skyhawk Blue Angels Edition and it works perfectly with this app everyday!
This app works wonders. I work nights and in a 35 story building downtown Phoenix so going to the roof is a good but cant always. I have a 2021 Citizen Promaster Skyhawk Blue Angels Edition and it works perfectly with this app everyday!
2026-05-16	Jo*****	It works great. Start manual sync on the watch. Put your watch up against your phone speaker, turn the volume all the way up, in a few minutes, the sync completes. It's a bit loud, so do it in a room where you can close the door.
It works great. Start manual sync on the watch. Put your watch up against your phone speaker, turn the volume all the way up, in a few minutes, the sync completes. It's a bit loud, so do it in a room where you can close the door.
2026-05-16	Ch*****	This app, on a Motorola phone, sync's my 20-year-old Casio G-shock reliably.... No Beast Mode needed.. The watch isn't multiband, the app chooses WWVB, and the watch is happy.
This app, on a Motorola phone, sync's my 20-year-old Casio G-shock reliably.... No Beast Mode needed.. The watch isn't multiband, the app chooses WWVB, and the watch is happy.
2026-05-14	Su*****	app works perfect
app works perfect
2026-05-14	MU*****	Used this app to set time on my Automic time keeping Blue angels watch in India works like a charm.My watch was not receiving radio signals in India.Great app Thank you so much to the people behind this application.
Used this app to set time on my Automic time keeping Blue angels watch in India works like a charm.My watch was not receiving radio signals in India.Great app Thank you so much to the people behind this application.
2026-05-13	Ma*****	This app is amazing for syncing radio wave Seiko watches. I bought one while traveling abroad and used it to sync in Japan first and then used it again when I had trouble syncing it after traveling back to the US. The watch refused to find a signal without the help of radio watch sync. I highly recommend.
This app is amazing for syncing radio wave Seiko watches. I bought one while traveling abroad and used it to sync in Japan first and then used it again when I had trouble syncing it after traveling back to the US. The watch refused to find a signal without the help of radio watch sync. I highly recommend.
2026-05-11	Sa*****	Synchronization took about 5 minutes with my GW-9400 g-shock, and the resulting time on the watch is about a second off atomic time. Overall though, it is a great app, as I live in Australia, and so I can't get any signal from the actual radio towers.
Synchronization took about 5 minutes with my GW-9400 g-shock, and the resulting time on the watch is about a second off atomic time. Overall though, it is a great app, as I live in Australia, and so I can't get any signal from the actual radio towers.
2026-05-11	Ry*****	I have no idea how but after 2 days of fighting my Casio range man to update on its own and getting nothing but errors this app connected in 2 minutes and the phone updated.
I have no idea how but after 2 days of fighting my Casio range man to update on its own and getting nothing but errors this app connected in 2 minutes and the phone updated.