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Critical Golf: Unbiased Golf Equipment Reviews

3BaysGSA PRO

3BaysGSA is a part of an increasingly competitive field of mobile golf swing analysis devices, and in effort to differentiate from the rest, bill themselves as the “World’s Lightest Golf Swing Analyzer”. At a weight of 9.8 grams we believe them, but will a 7-ounce difference from the competition be the deciding factor for customers?

The 3BaysGSA PRO, like the GolfSense, Swingbyte and SkyCaddie SkyPro, is a small device that communicates via Bluetooth with a free app on your mobile device (iOS or Android) to provide data on the location of the sensor in space. As with most of these golf swing analysis devices, with the exception of GolfSense which attaches to your glove, the 3BaysGSA PRO attaches to the club (though to the butt end of the club, while others to the shaft). The app calculates clubhead speed, face angle, swing path, tempo, backswing time, down swing time, impact force, ball speed, and carry distance, all in real-time.

As with other devices in this class of swing analysis tools, you should primarily focus on relative changes to the data over time, rather than focusing on if the device can really provide accurate club face or ball speed data. And when you are looking at data, such as face angle, remember that what you are looking at 3Bays comparison of where it believes the club face is at address to where the club face is at impact (so if these points are closed and square respectively, the face angle will show as open at impact) – the device has no knowledge of the exact position of the clubface and impact. And no, it doesn’t know what shaft you are using, so don’t dig too deep. And since you asked, you are correct – the 3BaysGSA PRO will return a ball speed even if you aren’t hitting balls, which provides some insight into what these devices can provide. But the benefit is you can feel free to swing away in your cubicle on those slow work days!

With the mobile app you’ll be able to watch an animated graphic of your swing from the front and side view, with the swing metrics mentioned above backing up the animation. With preloaded PGA and LPGA pro swings, you also can compare your swing to that of others and see how you stack up. All swing records are recorded and stored, tied to the selected club, so you can look at trends over time.

3BaysGSA PRO Golf Swing Analyzer
Click for images

The 3BaysGSA PRO unit is 29.3 x 18mm excluding the pin that screws into the grip, and 29.3 x 43mm including the pin. The device weighs 9.8 grams, has a charge of up to 5 hours, and has a micro USB for charging purposes (Bluetooth 2.1 + EDR for its wireless connection). It is compatible with iPhone 3GS and later, iPod touch 4th gen on, and all iPad and iPad minis (with iOS 5.1 and later). There is only one 3BaysGSA PRO unit included with purchase, so when you want to evaluate your performance with different clubs, you’ll need to remove the unit from one club and attach to another.

As with all mobile swing analysis tools, remember not to expect Trackman-like level of information. The Trackman runs over $10K, the 3BaysGSA PRO doesn’t. But what you do get is a fairly inexpensive swing analysis tool, and one that, unlike most other devices, is likely to remain in a fixed position through swing and impact. Whether it is best to have a swing analysis tool attached to the butt end of the grip versus the shaft versus attached to the club we’ll leave for someone else (who can compare all devices while using a Trackman), but we would rather have a device that stays put.

Keep in mind there are different 3BaysGSA PRO units for iOS (Apple devices) versus Android, so be sure to select the correct unit when purchasing. Retail pricing is the same for both, and why there are two different types of hardware based on operating system we aren’t sure. That sure doesn’t seem like a way to keep things simple in manufacturing.

Retail price: $199.99
Amazon.com: Check price now
Golfsmith: Check price now

Separately, there is also the 3BaysGSA PUTT, designed for analysis of your putting stroke. The device is the same in size, weight and battery life as the 3BaysGSA PRO, and we are guessing that the hardware is the same between devices. The bummer is that most likely the device could have offered one device for both full swing and putting. Then again, they wouldn’t have been able to charge $199.99 for each, would they? Bummer for us.

Retail price: $199.99
Amazon.com: Check price now
Golfsmith: Check price now



  • fred bagbagen

    how do I analyze the data

  • Marcellin Cusson

    Not a bad product but after 1 year I am enable to recharge the device. I have to buy another one because I have no repair option from the companie,