Karl—May 21, 2023
Quality build. Screen is small, but very high resolution. Some of the stock photos above don't do it justice. Just got my pre-ordered item tonight and tried out the features. Was just looking for a basic workout watch that had HRM and O2 sensor. Always have my phone with me, so GPS isn't really needed in the watch anymore. I used the newer, general "CASIO WATCH" app on Android as they appear to be phasing out the older CASIO MOVE app, etc. It worked well for registering, setting up, and updating the firmware on the watch. I saw complaints about the app in the app store, but so far so good here. One thing to note, the default view shown in the stock photos, where the time is in the middle and the HR is in the top right is not the default face. It is face #2 in the app, and I really like that, so switched to it right away. If I'm wearing this watch, I want to know what my HRM is. I plan to wear it at night for sleep monitoring, and while working out during the day. Not sure if I'll use all of the other "fitness" features, but as a watch and a heart rate monitor, it appears to be doing very well. The HRM seems more accurate than the chest strap I wore previously. If you don't want to pay a monthly fee for competing wrist-based heart rate monitoring, and just want a simple way to monitor your fitness without subscriptions, CASIO seems to have nailed it here. I'll report back after I've spent more time with the watch in the event that anything changes. Mine came fully charged, although this is a new release, so was probably just manufactured not to long ago. It appears that with the current version of the Android app, there is no integration with Google Fit, Strava, or other apps. Nor is there any ability to export walks or runs as .gpx files for use in other applications. Further, the HRM can only be seen by the watch, and the Casio app, so you won't be able to use this watch as an HRM with other apps unless that changes. Read more
Customer—November 26, 2024
This watch is not for those looking for a smart watch replacement. This is a simple, durable, and basic watch. I didn't want another device to distract me while on runs or working out. I also think that Apple watches are too feminine. This is for a watch person that wants a tough but stylish tracker and heart monitor. I don't wear it everyday so the battery tends to last 3 to 4 weeks. It also managed to add battery life while on a long hike. The buttons are a little difficult to use and the app is very basic, but I'm okay with it. If you need more information and app quality is important, I would suggest getting a traditional smart watch. Read more
Tony—November 9, 2025
This watch has the family design as a 5000 series G-SHOCK, and the MIP display is significantly better compared to traditional segmented LCD display in terms of viewing angle and capability. So if you 1) wants a G-SHOCK 2) that has superior readability 3) and has some solar charging capabilities, this seems to be the watch for you (so far). However, the software, especially the companion app on the phone, are TERRIBLE. After paring with my phone, it prompts me to upgrade the watch firmware. However, it failed! I tried again and again, and it just keep failing! It doesn't tell you why it failed, but only tell you that you should put it in time mode and charge it. I followed the FAQ and posts on reddit, and none of them help. At last, I leave the watch still overnight, and it finally let me upgraded. In my years of dealing with different kind of smart watch/band/wearables, this one is by far has the most notorious firmware upgrade experiences. I can't imagine if the person who wrote this has even tried to upgrade himself. The lack of instruction, and the deep buried troubleshooting documents just showcase that CASIO haven't are not even trying. And the watch software is somewhat weaker compared to traditional model in terms of feature. The stopwatch, for example, only has a precision of 1 second, which is laughable because even my phone can do 1/100 second precision. And it doesn't let you go back to the main screen when you're using the stopwatch, or any other feature. It's significantly lacking, even when compared to the software it build decades ago. Hopefully CASIO one day will fix that, because luckily this watch does have OTA capability, but I won't bet on that given this watch has been out for years and this is somehow still a problem. Overall, it has a good build, but don't expect Garmin/Apple/Amazfit type of strong software capability. The upcoming GW-BX5600 might even be a better watch. Read more
