Compatible Speed Devices
You do not need to buy another radar if you already own one that measures dry swings accurately. But different devices behave very differently, especially when it comes to automatic data transfer into TheStack App. Use this guide to make the right decision before ordering.
Why speed training needs a particular type of radar
TheStack speed trainer is swung without striking a golf ball. Your device needs to record clubhead speed from a dry swing, rather than only tracking ball flight. A sophisticated launch monitor that works brilliantly for full shots may not necessarily capture these practice swings.
There is a second question too: Does the radar send the measurement straight into the App, or will you need to enter each speed yourself? Manual entry can still work, but automatic connection makes sessions easier to follow.
TheStack's currently listed compatible devices
The manufacturer maintains a changing list of tested speed devices. The following examples are drawn from that list; firmware, exact models and platform support should always be checked before purchasing.
| Device / family | Non-impact speed | Direct Stack App integration |
|---|---|---|
| Stack Radar | Yes | Yes, on supported iOS / Android / Web |
| Garmin Approach R10 | Yes | Supported on iOS with appropriate setup |
| Rapsodo MLM2PRO / MLM2XPRO | Yes | Supported on iOS with required firmware and app setup |
| FlightScope Mevo+, Mevo Gen2 | Yes | Supported on iOS |
| FlightScope X3, X2 and selected related models | Yes | Supported on iOS for listed models |
| PRGR Black Pocket / Red Pocket | Yes | Manual speed entry into Stack App |
| TrackMan 4 (TPS) | Yes | Manual entry or model-specific workflow |
| Voice Caddie SC200 Plus / selected Garmin handheld models | Yes | Typically manual entry |
Other specific models from SkyTrak, Foresight, Sport Sensors and Yupiteru may also qualify. We deliberately haven't claimed that every radar produced by a listed brand will work; model-level capability matters.
Why we recommend Stack Radar for most new buyers
Stack Radar is designed to work with TheStack. It measures practice swing speed without ball contact, can record ball speed during hitting sessions and connects to the App via Bluetooth on supported platforms. That makes it a simpler starting point for golfers who want to train rather than troubleshoot equipment.
Speed training
Keep your training measurements flowing into the App without manual data entry. Radar integration is particularly useful when a programme asks for a range of weight combinations.
Stack Wedging and Practice Tracker
These other modes specifically rely on Stack Radar for the relevant shot data. A PRGR or a compatible Garmin for speed training is not necessarily a replacement in those modules.
What does Stack Radar measure?
The manufacturer lists swing speed, ball speed and estimated carry distance and smash factor. The carry estimate is useful for practice but should not be treated as a perfect ball-flight measurement under every condition. Consistent placement, correct mode and attention to setup are important.
Platform compatibility: an important difference
The iOS app supports a wider selection of third-party devices with connected workflows. The manufacturer currently advises that Stack Radar is the only radar offering a Bluetooth connection within the Android/Web versions of TheStack App. This doesn't automatically mean you cannot use a different device to measure speed — it means you may need a different data-entry process.
If you're using a Garmin R10 or Rapsodo unit, check the manufacturer steps for firmware and the relevant companion apps. Do not assume a phone upgrade or a device firmware update is unnecessary.
Which package makes sense for you?
Speed trainer only — NZ$497
Best for golfers who have verified their radar can already measure non-impact practice swings.
Trainer + Stack Radar — NZ$997
Best for someone starting fresh, wanting Bluetooth integration and interested in supported wedge practice modes.
Still unsure which radar you have?
Email info@coachgurney.com with your exact radar name and model, and tell us whether you're on iOS, Android or Web. We can help you check compatibility before you spend money.
Related: Speed Training, Stack Wedging, TheStack App, all FAQs.