BOKi4 — the future of performance tracking
The first wearable built for all your limbs with advanced motion tracking and heart-rate monitoring in real time, engineered for combat athletes.
Highlights
Heart rate
Know every beat
A continuous optical sensor reads your pulse around the clock so you can train in the right zone, recover smarter, and see measurable progress every session.
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Heart rate tracking
Monitor your heart rate continuously throughout every workout, round, and recovery period.
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Optical heart rate sensor
Advanced optical technology delivers accurate readings even under wraps, gloves and intense training conditions.
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Real-time heart rate
See live heart-rate data instantly through the TBKFiT App and train at the optimal intensity.
Motion
Read every move
A powerful 6-axis sensor array captures the speed, angle and force of every movement, providing detailed performance insights in real time.
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Movement tracking
Build a complete picture of your training performance with real-time motion analysis.
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6-axis motion sensor
Measures acceleration, rotation and orientation at high frequency for unmatched accuracy.
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Precision tracking
Every strike, step, slip and movement is detected and recorded with exceptional precision.
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Real-time data
Instantly sync training data to your phone for immediate performance feedback.
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Built to perform in any environment. IP68-rated protection against sweat, rain and everyday training conditions.
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Designed for maximum comfort and minimal distraction, allowing you to focus entirely on performance.
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Train longer with a battery built to last through multiple sessions and full training weeks.
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Automatically connects to your device so your performance data is always available when you need it.
Battery
Built to outlast every session.
A power-efficient chipset and slimline battery design keep BOKi4 performing throughout the week, with fast charging ready for your next workout.
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Built-in battery
Long-lasting power designed for serious athletes.
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Charges BOKi4 x 4
Simultaneously charge all four wearable sensors.
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LED status indicator
Quickly check charging and connection status.
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USB-C charging
Fast, reliable charging with modern USB-C connectivity.
Connected app
Your workout.
Your AI trainer.
BOKi4 captures the data, the TBKFiT app turns it into drills, corrections and progress you can see. Together they form the closest thing to a private coach you can put in your kit bag.
The numbers
Tech Specs
Motion sensors
6-axis IMU · 3-axis accelerometer · 3-axis gyroscope · 3-axis magnetometer · 100Hz sampling.
Heart-rate sensor
PPG sensor · combined red and green illumination · 50Hz sampling.
Battery
Up to 7 days normal use · up to 14 hours continuous live tracking · 15 min fast-charge for a full day.
Connectivity
Bluetooth 5.3 LE · sub-50ms streaming latency to the TBKFiT app.
Compatability
iOS 16 or later · Android 11 or later.
Materials
Aerospace-grade aluminium module · breathable double-layer weave of recycled nylon, polyester, and spandex (elastane).
Weight
22g module · 38g with standard strap.
Dimensions
34 × 28 × 9mm module · fits wrists 140–220mm.
Water & dust
IP68 sweat, splash and rinse-down resistant.
In the box
BOKi4 module · elastic training strap · magnetic charging dock · USB-C cable · quick-start guide.
Something exciting is coming
Our product line isn't available to purchase just yet, but by joining our mailing list you'll get exclusive early access, launch updates, special offers and insider news before anyone else.
FAQ
Common questions
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BOKi4 tracks strike speed, movement velocity, reaction time, accuracy, heart rate and training intensity in real time.
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For anyone and everyone! BOKi4 is built for boxing, kickboxing, MMA, shadow boxing, pad work, bag work, HIIT and fitness athletes.
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Four wearable sensors collect movement and heart-rate data, syncing instantly for live performance analysis.
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Yes. BOKi4 adapts to every level, from complete beginners to elite athletes.
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Because every movement becomes measurable, helping you train smarter, improve faster and unlock your full potential.