Coach Harvey vs Sportsbox AI
3D motion capture from phone camera·Reviewed April 9, 2026·By Coach Harvey - AI Golf Coach
A pose-tracking app that turns your phone camera into a 3D motion capture system, with live body-segment data overlays.
Sportsbox AI is one of the more impressive engineering plays in golf tech: it uses a single phone camera to estimate full 3D body motion in something close to real-time, and then displays that motion as charts and angles. It's genuinely cool. The question is whether the 3D data is what you actually need, or whether what you actually need is a coach. Here's the honest comparison with Coach Harvey.
Side by side
| Feature | Coach Harvey | Sportsbox AI | Winner |
|---|---|---|---|
| AI coaching call | Yes — one thing to fix | No — data only | Coach Harvey |
| 3D body-segment data | Pose stack | Detailed 3D | Them |
| Chat between swings | Yes — grounded in your history | No | Coach Harvey |
| Long-term session memory | Every swing remembered | Per-session video | Coach Harvey |
| Interprets the data for you | Yes — Claude | No — you read the charts | Coach Harvey |
| Pricing | Free during launch | Paid subscription | Coach Harvey |
What Sportsbox AI does well
- 01Genuinely impressive 3D pose estimation from a single phone camera — no markers, no second camera
- 02Detailed body-segment data: pelvis tilt, shoulder rotation, hip sway, sequence, all measured over time
- 03Used and recommended by a number of PGA Tour coaches as a screening tool
- 04Solid library of training drills mapped to specific body-segment problems
What Coach Harvey does better
- 01Coach Harvey calls one thing to fix on every swing — Sportsbox shows you charts and expects you to interpret them.
- 02Coach Harvey is reasoning-model-driven (Claude) — the interpretation step is the product. Sportsbox is primarily a measurement and data-display tool.
- 03Coach Harvey's chat means you can ask follow-up questions between swings, with every answer grounded in your swing history. Sportsbox is a one-way data display.
- 04Coach Harvey is free during launch. Sportsbox is a paid subscription.
- 05Coach Harvey's feedback is one focused thing — Sportsbox throws every measurement at you at once.
What Sportsbox AI does better than Coach Harvey
Every comparison should include this section. If a tool is the wrong answer for you, this is where you'll find out.
- 01Sportsbox's 3D body data is more detailed and more visualizable than Coach Harvey's pose stack — if numbers are what you want, Sportsbox has more of them.
- 02Sportsbox is the better choice if a coach is interpreting the output for you in person.
- 03Sportsbox has been refining its pose-estimation pipeline longer and the 3D output is generally smoother on edge cases.
Use Sportsbox AI if a human coach is going to interpret the output for you, or if you specifically want detailed 3D body-segment data to visualize and chart over time. It is the more sophisticated measurement tool.
Use Coach Harvey if you want the analysis interpreted for you — one clear thing to fix per swing, a chat panel where you can ask follow-up questions, and a memory of every session. Coach Harvey is an AI coach. Sportsbox is an AI measurement device.
See it on your swing
Upload a swing. Coach Harvey calls one thing to fix, hands you the drill, and remembers every session — the next question reads from this one. Free during launch.
Analyze a swing →