Immediate
A number you can see mid-set
The score is on the device, not buried in an app. In a hard round, one glance tells you how that rep compared with the last one. No phone required.
Precision instrument for impact training
The power meter for impact training.
Hit the target and see the number. No phone, no pairing, no setup. INTENSITY is a sensor-based power meter that scores every strike on a built-in display, so you can tell how hard you hit and whether you're getting stronger. Pair the iPhone app when you want session history and Strava export.
Sized for a garage gym, a coaching bay, or a class floor, with a display you can read from a few steps back.
Why this matters
Rowers get splits. Cyclists get watts. Your sledgehammer gets nothing.
Impact training usually ends with "that felt hard." INTENSITY gives each hit a power score and each session a total, so you can program the work, track progress, and compare sessions.
Trackable
Beat yesterday's number
Session best, strike count, and elapsed time stay on screen so you can compare round to round and week to week. If you track PRs on the rower, you can track them here too.
No subscription
Pay once. Own the data.
The device runs your workout without account creation, cloud dependency, or monthly fees. The iPhone app adds history and Strava posting when you want it, but the hardware works on its own.
How it works
Set up in under five minutes. Read the score in under one second.
Mount the unit, press start, and swing. The display updates after every strike. When you're done, the session summary stays on screen or syncs to the app for your training log.
Mount and power on
Place the unit on your target. Press the button. The whole setup is faster than loading a barbell.
Swing, read, repeat
Every hit puts a power score on the display, big enough to read from a few steps back. In a solo session it's your benchmark. On a gym floor it's the score everyone's chasing.
Review or export
Session best, strike count, and total output stay on the device. Connect the iPhone app to save the full log, export a workout file, or post straight to Strava.
Who it helps
A feedback loop for impact training
Train alone in a garage, coach a class of twenty, or run a gym. Either way, athletes can see a number for their power output.
For the garage athlete
Your hammer work gets a scoreboard
You already know when a set felt good. Now you know if it was 10% harder than last week. Track peak power, watch your session average climb, and spot when fatigue drops your output like you would on an erg.
For coaches & personal trainers
Coach intent, not just effort
"Hit harder" is vague. "Beat 320" is specific. INTENSITY lets you prescribe power targets, pace a station, and show clients measurable progress in real time.
For gym owners
One unit on the floor. Every member wants a turn.
Run a weekly leaderboard. Add a sledgehammer station to class programming. Put it out on testing day and give members a number to chase. One boxing gym bought six, and members started asking where to get their own.
What the product includes
Hardware that runs the session. An app that saves it.
The device handles live scoring, tracking, and display. The iPhone app adds a training log, workout export, and Strava posting for later review.
On-device display built for distance
One large power score dominates the screen, with session best, strike count, and elapsed time below it. It's designed to read clearly from several feet away because you're not holding the device when you're swinging.
iPhone app with Strava export
The companion app connects over Bluetooth, logs every strike in real time, and stores your full workout history. After a session, post to Strava with one tap, the same way you'd log a ride or a row.
Works alone. Works in a crowd.
Use it solo for repeatable benchmarks or put it on a gym floor and let twenty people chase the same number. The hardware works the same in a garage session or a loud class.
Buy it once. Use it forever.
No subscription, account creation, or required cloud service. The device works out of the box, and the core training loop stays yours.
Specs and launch assumptions
Launch specs
What ships with the first production run: straightforward hardware and no required subscription.
Display128 x 64 on-device session display
Live metricsCurrent score, session best, strike count, elapsed time
ConnectivityBluetooth sync to companion iPhone app
ExportSession logging with workout-file export from the app
Core ownershipNo subscription required for normal use
Setup targetUnder 5 minutes from bag to first hit
Target launch price$349 to $499 for the personal unit
Gym packagePlanned, pricing to be finalized after first production run
FAQ
Common questions
What is INTENSITY?
A hardware power meter for impact training. It uses an embedded sensor system to measure every hit and display a power score on a built-in screen. It's built for sledgehammers, maces, bats, and other swung implements.
Who is it for?
Anyone who already uses impact training and wants real data on it. That's garage athletes, coaches, personal trainers, CrossFit affiliates, boxing gyms, and strength programs that use sledgehammer or mace conditioning.
Do I need the app?
No. The device runs the full session on its own — scoring, tracking, and display. The iPhone app is optional and adds workout history, data export, and Strava posting for people who want a training log.
When can I buy it?
The first production run is being finalized now. Join the list below to get notified when units are available — early list members get first access and launch pricing.
v0 waitlist — 500 units
First batch of the v0 pad is 500 units.
Signing up gets you a spot on the v0 waitlist, early access to launch pricing before units go on general sale, and an invite to the Intensity Discord for build updates, feedback, and first-round delivery coordination.
Running a gym or coaching a program?
Coach or gym inquiry →