Quick Answer: Blast Motion Golf (Gen 3 sensor) is a $149.95 grip-clip motion sensor that reports swing tempo, clubhead speed, attack angle, and an Efficiency Score for full swings, chipping, and putting — all from a 10-gram package that pairs to your phone in about 90 seconds with no calibration. It’s one of the few sensors that measures putting stroke data (face angle, lie angle, rotation) as thoroughly as the full swing, and its Air Swings mode lets you train tempo without hitting a single ball. The tradeoff, echoed across independent reviews, is the clip-on attachment system — it’s fiddly compared to a screw-in sensor and adds a couple of inches to the club, though it works on virtually any grip. Check Blast Motion Golf on Amazon. Get your launch monitor in two days — try Amazon Prime free for 30 days — to pair the tempo work here with real ball-flight numbers.
Blast Golf already shows up as the “best for tempo & putting” pick in our best golf swing analyzer roundup and gets a supporting mention in our Sportsbox AI review, but neither had room to go deep on what the Gen 3 sensor actually measures, what the real subscription costs look like, or where it falls short. This review covers that ground.
Blast Motion Golf by the numbers
- The Gen 3 sensor costs $149.95 direct from Blast Motion’s own store, with a one-month premium membership included at purchase before the app reverts to its free tier.
- Ongoing premium access — unlimited swings, advanced analytics, 3D Swing Tracer, and video overlay — runs $9.99/month or $74.90/year (about 28% cheaper annually); the free tier still works afterward but caps at 10 swings per day with basic metrics only.
- Per Blast Motion, the ideal swing tempo ratio is roughly 3:1 — backswing taking about three times as long as the downswing — the single benchmark the sensor is built to surface on every swing.
- Golf Monthly’s independent review found the clip-on attachment adds about 2 inches of effective club length and is noticeably harder to fit on a putter grip than the screw-in mounts used by Arccos and Shot Scope.
Pair the tempo and Efficiency Score data here with real ball-flight numbers from a launch monitor — Blast tells you how you swung, a launch monitor tells you what happened to the ball. Pricing and specs re-verified August 2026.
Blast Motion Golf Gen 3 at a glance
| Spec | Blast Motion Golf Gen 3 |
|---|---|
| Type | Grip-clip motion sensor |
| Measures | Tempo, clubhead/hand speed, attack angle, Efficiency Score; putting adds face angle, lie angle, rotation |
| Price | $149.95 (1 month premium included) |
| Subscription | $9.99/mo or $74.90/yr after trial; free tier capped at 10 swings/day |
| Setup | ~90 seconds, no calibration, Bluetooth Smart pairing |
| Extras | Air Swings (no ball needed), automatic slow-motion video capture |
| Best for | Tempo training and putting-stroke analysis |
Setup and everyday use — what a Blast session actually looks like
Blast Motion Golf (Gen 3)
- Clip the sensor to the butt of any standard or oversized grip — Blast Motion says setup and pairing takes about 90 seconds, with no manual calibration step.
- Swing normally; the app reports tempo (on a speedometer-style gauge), clubhead speed, attack angle, and the Efficiency Score in plain-English terms, not raw engineering units.
- Use Air Swings to rehearse tempo indoors or in a hallway without a ball, or switch to putting mode for face-angle and rotation data on the green.
What separates Blast from a plain swing-speed radar is that every swing also gets a short slow-motion video clip, automatically synced to the metrics — so instead of just seeing a number, you can watch the exact moment attack angle or tempo went sideways. Reviewers are consistent that this pairing, not any single metric, is what makes the app worth opening after every range session. The honest caveat is the attachment: several independent reviews flag the clip system as fiddly on certain grip shapes, and specifically awkward on putters, which is a real friction point given how strong the putting-specific data actually is once the sensor is seated correctly.
Blast Motion vs the other swing analyzers
Blast’s differentiator is breadth at a low one-time price — it’s the only sensor here that covers full swing, chipping, and putting with real depth, rather than specializing in one motion.
| Factor | Blast Motion | HackMotion | Arccos Caddie |
|---|---|---|---|
| Hardware | Grip-clip sensor (10g) | Wrist sensor | 14 grip sensors |
| What it measures | Tempo, speed, attack angle, putting stroke | Wrist flexion/extension | Shot tracking, Strokes Gained |
| Where it shines | Range and green, tempo + short game | Range, clubface training | On-course, every round |
| Price | $149.95 + optional $9.99/mo | $345-$985 one-time | ~$180 one-time + app |
| Best for | Tempo, speed, and putting feedback | Fixing a slice or hook at the root | On-course stats-driven improvement |
If your miss has a specific name — a slice or hook caused by an open clubface — HackMotion’s wrist-angle data is the more targeted fix. If you want to know where you’re actually losing strokes across a full round, Arccos is built for that. Blast Motion sits in between: it’s the best pure practice-session tool for tempo, speed, and putting stroke, at a fraction of HackMotion’s price and with no hardware to screw into your grips. See the complete field in our best golf swing analyzer roundup.
Who should buy Blast Motion Golf?
- Buy Blast Motion if you want tempo, clubhead speed, and putting-stroke feedback from one affordable sensor, and you’re comfortable with a clip-on attachment instead of a screw-in mount.
- Buy HackMotion instead if a coach has already identified your miss as a wrist-and-clubface issue and you want the more targeted (and pricier) fix.
- Buy Arccos Caddie instead if your priority is on-course shot tracking and Strokes Gained stats, not practice-range tempo work.
- Buy Sportsbox AI instead if you’d rather use your phone’s camera for full-body 3D mechanics with no hardware at all.
- Pair Blast Motion with a launch monitor if you want the complete picture: tempo and speed data here, verified ball-flight results there.
The bottom line
Blast Motion Golf’s Gen 3 sensor is the most well-rounded budget option in the swing-analyzer field — one $149.95 clip covers full swing, chipping, and putting with genuinely useful feedback, anchored by the Efficiency Score and automatic slow-motion video. The clip-on attachment is a real friction point next to screw-in rivals like Arccos, and getting the most out of it means accepting the optional $9.99/month subscription once the included first month runs out. For tempo and short-game feedback at this price, it remains hard to beat. Check the full field — including wrist-specific and phone-only alternatives — in our best golf swing analyzer guide, and once your tempo tightens up, verify the results with a launch monitor.