FlightScope i4 Review: Driving Range Heroes Praises AI Golf Rangefinder for Smart Decisions

In a recent review, Bill Bush of Driving Range Heroes praised the FlightScope i4 Laser Rangefinder for its blend of precise distance measurement, real-time weather integration, and AI-driven club recommendations. According to Bush, these features combine to deliver personalized shot insights that elevate every golfer's game.

Setup and Getting Started with Your FlightScope i4 AI Rangefinder

Bush noted that while the i4’s advanced features might make setup seem “a bit daunting” at first, the process is actually straightforward. For those who simply want accurate distance readings, the i4 works as a traditional point-and-shoot rangefinder – just charge it via the included USB-C cable and go.

Basic functions, such as toggling slope on/off and switching between yards and meters, are easily controlled via short or long presses of the Mode button. However, Bush emphasized that the i4's real value is unlocked when connected to the FS Golf App.

“You aren’t buying this rangefinder for the basic point-and-shoot features that every other rangefinder offers. Utilizing all of the integrated technology will require the use of the FlightScope Golf app on your iPhone or Android device,” said Bush.

Once paired with the app via Bluetooth – a process Bush described as “super easy” – users can set up personalized club gapping reports. This can be done in several ways:

• Importing a gapping session from a FlightScope launch monitor,

• Uploading a CSV file from the FS Golf PC Software or a previous session on another launch monitor

• Or using the Smart Gapping AI Tool, which generates a full-bag gapping report using just the carry distance of a single club (ideally a 7-iron).

To finish setup, users input their current playing location to sync with real-time local weather data, ensuring accurate environmental calculations.

FlightScope i4's Premium Features: FS Mode & Environmental Optimizer

With the FS Golf App connected, users can activate FS Mode – indicated by a red light on the top of the device. In this mode, the i4 leverages FlightScope’s patented Environmental Optimizer to deliver advanced club recommendations and dynamic Effective Distance calculations. These account for slope, wind, and other environmental conditions to support smarter shot decisions. 

Bush called this the i4’s “standout feature.”

“This engine combines real-time weather data—such as local air pressure, temperature, humidity, altitude, wind speed, and relative landing height—to give you a yardage and club recommendation based on your distance gaps. You even have the ability to select wind direction to factor that into your distances,” Bush explained.

Beyond these intelligent tools, the i4 includes all the features expected from a high-end rangefinder:

• Slope toggle for tournament play

• Measurement in yards or meters

• 5–1,000 yard range

• Vibration-assisted pin lock

• Integrated cart magnet for convenience

FlightScope i4 On-Course Performance: Precision & Personalized Insights

When it came to on-course use, Bush confirmed the i4 delivered fast and accurate readings – just 0.05 seconds per measurement – with crisp, clear optics. Its rechargeable USB-C battery supports up to 15,000 uses per charge, removing the hassle of replacing batteries.

While he initially found the FS Mode display “a little overwhelming,” Bush said it quickly became intuitive.

“By the end of the first round, I was totally used to it.”

He reported that the adjusted yardages and club recommendations consistently reflected real on-course performance, especially after completing the initial gapping setup.

Final Verdict: Why the FlightScope i4 is a Worthy Upgrade for Golfers

Bush wrapped up his review by admitting he had “zero intention of replacing [his] current rangefinder” before testing the i4. But after significant time with the device, he came away impressed.

“The i4’s Environmental Optimizer delivers quick, relevant data that genuinely helps you make smarter decisions, especially when navigating tricky weather conditions.”

He praised the i4’s ability to integrate accurate distance readings with actionable, AI-powered insights, all without slowing down play. For casual rounds on familiar tracks, it also works perfectly in standard rangefinder mode.

“Golf is a game of managing a wide range of variables, committing to a decision, and executing. The FlightScope i4 doesn’t magically make those decisions for you, but it quickly gives you more useful information to help you commit with confidence.”

Read the full review on Driving Range Heroes here.