Off to a Great Running Start
A wide array of real-time metrics for peak efficiency and performance, dedicated to every runner.
Pre-Order
KOSPET TANK T4 Smartwatch
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Get a free Baseball Cap—just add both the smartwatch and the baseball cap to your cart, then apply code TM4ACH at checkout, while supplies last.
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Description
Built with rugged durability and long-lasting power, the TANK T4 delivers precise dual-band GPS tracking and offline maps for your runs, a walkie-talkie for outdoor safety, and the reliability to explore even underwater. It is ready whether you are starting to run, building your training routine, or preparing for your next race.
Inox 360 stainless steel, SGS certified to MIL-STD-810H
Dual-band GNSS with OPDR for precise tracking
Offline maps and a walkie-talkie for outdoor use
1.43" AMOLED display with auto-brightness
10 ATM & IP69K water resistance
24/7 health monitoring with 4PD sensor
Free Shipping
1-Year Warranty
7-Day Trial
24/7 Support
50% Off Accessories with Your Watch
50% OffNot valid with other product offers. New leather and nylon straps are not included.
New
KOSPET 22mm Premium Archlan Leather Strap
Brown
$19.99 USD
New
KOSPET Tank T4 Smartwatch Power Pocket
$19.99 USD
KOSPET 22mm Woven Nylon Sport Loop Strap
Dark Grey / Orange Stripe
$15.99 USD
KOSPET 22mm Camouflage Strap
$8.00 USD
$15.99 USD
KOSPET 22mm Magnetic Strap
Orange & Yellow
$8.00 USD
$15.99 USD
KOSPET 22mm Stainless Steel Double Deployant Strap
Black
$10.00 USD
$19.99 USD
KOSPET 22mm Stainless Steel Folding Clasp Strap
Silver
$8.00 USD
$19.99 USD
KOSPET TANK T3 ULTRA 2 & MAGIC R10 Protective Film
$6.50 USD
$12.99 USD
KOSPET Universal Magnetic Charging Cable
$6.50 USD
$12.99 USD
KOSPET TANK T4 Smartwatch
Black
- $30.00
KOSPET TANK T4 Smartwatch
Sale Price$179.99 USD
Regular Price$209.99 USD
No reviews
Overview
COLE HOCKER
World Champion
Olympic Champion
KOSPET Brand Ambassador
Refined for Precision in Motion
Track with optimal accuracy using a built-in 6-axis gyroscope and support for OPDR algorithm and dual-band GNSS.
360-Degree Strength and Durability
Forged with an Inox shield structure, tested to 20 MIL-STD-810H standards, and certified by SGS for ultimate durability and waterproofing.
Adaptive Brightness Ready to Thrive
The 1.43" AMOLED display with an ambient light sensor ensures clarity in various lighting conditions.
Pro Modes for Maximum Performance
Train smarter and recover better with 23 ApexMotion sports modes featuring in-depth specialized data and post-workout analysis.
Next-level Adventures Forward
Experience the freedom to roam and navigate off the grid with offline maps and route navigation.
Seamless integration, Enhanced Interactions
Tap into more health and fitness insights, extensive customization, and more on the Apexmove App.
2025 Product Design gold winner
KOSPET TANK T4 - Honored with Gold at both the MUSE and London Design Awards for its refined design, delivering a flawless blend of performance and style.
Build Tough, Refined Harder
With the Inox 360 shield structure, KOSPET TANK T4 features a durable stainless steel body built to survive it all, from -50°C deep cold to 70°C extreme heat, shock, humidity, and more. Its 1.43-inch AMOLED display integrated with an ambient light sensor delivers sharp clarity in multiple lighting environments. Certified by SGS and tested to pass 20 U.S. MIL-STD-810H standards, the smartwatch is indeed crafted for real-world extremes — on city streets or remote trails alike.
Pro-Grade Clarity,
Day or Night
The KOSPET TANK T4 features a spacious 1.43" ultra-clear AMOLED display with up to 1,000 nits peak brightness, ensuring bold, vivid visuals even under direct sunlight.
A built-in ambient light sensor automatically adjusts brightness in real time, keeping dive stats, workout routes, and health data perfectly visible—whether it’s dawn, midday, or dusk.
1000nits
Peak Brightness60Hz
Refresh Rate
Reinforced by
Inox Shield Structure
From the bezel to the back, KOSPET TANK T4 is thoughtfully crafted with premium Inox stainless steel for a sleek yet durable build, so the smartwatch can match the rhythm of daily commute, weekend training, and even wildest adventures.
Proven Toughness,
SGS Tested
Tested by SGS, Europe’s leading independent lab, the KOSPET TANK T4 has aced 20 U.S. MIL-STD-810H military-grade tests, proving its resilience against extreme temperatures, shocks, sand, dust, humidity, and more. Every report and lab result tells the same story — this watch is built to thrive.
High-temperature
Operation Test
Low-temperature Operation Test
Salt Fog / Corrosive
Environments Test
Rain Test
Vibration Test
Sand and Dust Test
Low PressureStorage Test
Low PressureOperation Test
High-temperatureStorage Test
High-temperatureOperating Test
Low-temperatureStorage Test
Humidity Test
Fungus Test
Sand andDust Test
Salt Fog / CorrosiveEnvironments Test
Immersion Test
Low-temperatureOperating Test
TemperatureShock Test
Contaminationby Fluids Test
SolarRadiation Test
Rain Test
Vibration Test
FunctionalShock Test
Transit Drop Test
Shock Test
Freeze-Thaw Test
Dive Deeper,
Stay Protected
With 10 ATM and IP69K water resistance ratings, KOSPET TANK T4 is engineered to handle rigorous water environments. From high-pressure rinses to deep-sea dives, it stays sealed, steady, and ready — surviving up to 45 meters underwater.
10 ATM
water resistance
Tested by SGS, Europe's leading independent lab.
*Note: The smartwatch should not be worn during hot showers, in saunas, or during any other activities that involve high temperatures and/or high levels of humidity.
Meet Our Ambassador
Cole Hocker
Cole Hocker is an American middle- and long-distance runner specializing in the 1500 meters. He won the gold medal in the event at the 2024 Paris Summer Olympics with a new Olympic record. Renowned for his grit, humility, and focus, Cole embodies the spirit of KOSPET—always breaking limits. Together with KOSPET TANK T4, the elite professional athlete doesn’t rely on instinct alone, but runs with all-around insights.
Unleash Your Athletic Potential
Jump into action with KOSPET TANK T4 and switch up your sports performance with a choice of 23 ApexMotion sports modes and 160 freestyle training modes. While you are running on the trail, sliding down the slope, or striving for the mountaintop, the smartwatch provides you with in-depth metrics and post-workout insights to help you train smarter, not just header.
Go the Distance
Engineered for endurance, T4 tracks every mile, every split, and every second of your marathon. From running metrics like pace and stride length to post-running data like VO2 max and recovery time, it’s built to go the distance—just like you.
Find Your Flow Off-Road
Conquer rugged trails with precision metrics like elevation gain, slope, pace, and altitude. T4 keeps you in sync with every incline, every descent, and every breath, helping you push boundaries where the road ends.
Climb with Purpose
From day hikes to alpine treks, T4 records elevation gain, step length, training load, and cadence with pinpoint accuracy. The built-in barometric altimeter keeps your every climb smart and updated.
Whatever You Train, lt Tracks
T4 supports 160 freestyle training modes, delivering full training insights from gym sessions to weekend pursuits. Besides 6 Smart Recognition built-in, it's ready to track a wide range of activities—so your effort is always recorded, and nothing slips by unnoticed.
Every Move Does Count
Whether you are pushing through intense sets or making sharp turns, KOSPET TANK T4 can keep up with your movements with its built-in 6-axis gyroscope, which measures changes in your orientation, acceleration forces, and speed, providing a clearer picture of your body’s responses during critical moments.
Run with Precision,
Pace with Direction
From urban running with tall buildings to trail running through the woods, KOSPET TANK T4 tracks your movement with outstanding accuracy, thanks to its industry-leading dual-band six-system GNSS. By downloading offline maps and selecting the target route or location point, you can run your favourite routes or even along unfamiliar paths.
OPDR Algorithm—It’s All About Accuracy
Empowered by the advanced OPDR algorithm, KOSPET TANK T4 serves to record a dynamic activity trajectory when GPS signals are weak or unavailable during outdoor workouts, such as under bridges, so you can tune into your performance anytime, anywhere.
≈ 5,000 Songs, 100 Maps
— All in 32GB Storage
Say goodbye to your phone during workouts with KOSPET TANK T4’s massive 32GB storage — enough for about 5,000 songs and 100 offline maps. and perhaps all your training data.
*Disclaimer: Actual available storage may be less than 32GB due to system software. Music and map capacity varies based on file format, quality, and usage conditions.
Route Import & Offline Map Support
To keep you updated on your position as you navigate, KOSPET TANK T4 allows for swift import of GPX or KML route files via the Apexmove App and offline map downloads using a computer or tablet.
Get in Touch
with Walkie-talkie
Whether you're on a mountain trail or in a dense forest, the TANK T4’s built-in walkie-talkie lets you reach your teammates instantly—push-to-talk within a 40m radius, no internet needed. Rugged, reliable, and always within range when you need it most.
*Range may vary with environmental conditions.
Elevated On-Wrist
Health Monitoring
Equipped with the leading-edge 4PD sensor that picks up more optical signals for faster and more precise measurements, KOSPET TANK T4 assists you in tuning into your health and wellness on a daily basis.
All-Day
Health Management
Heart Rate Monitoring
Keep tabs on your heart health around the clock with 24/7 heart rate monitoring and receive timely alerts for abnormal values detected.
Blood Oxygen Monitoring
Monitor your SpO2 throughout the day with the low blood oxygen alert to help you stay on top of your respiratory well-being.
Stress Monitoring
Monitor your real-time stress level based on heart rate variability and show stress changes throughout the day for better stress management.
Sleep Tracking
Shape healthier rest habits with smart sleep tracking (including naps) and wake up with insightful data such as analysis of major sleep stages.
Menstrual Cycle Tracking
Track your menstrual cycle from beginning to end and get timely predictions and reminders for your upcoming period, fertile window, and ovulation day.
One-Tap Health Check
A simple tap on KOSPET TANK T4 enables simultaneous monitoring of your heart rate, blood oxygen level, stress level, and mood.
Endurance
You Can Count On
With a high-capacity battery and optimized power management, the KOSPET TANK T4 keeps going long after others quit — lasting up to 14-15 days in typical use, 9-10 days in heavy use, and 5–6 days with Always-On Display enabled. Even during GPS-intensive adventures, you’ll get up to 21–22 hours of continuous tracking, so your journey is never cut short by a low-battery warning.
14-15
Typical Usage
Daysup to
21-22
Continuous GPS Usage
Hoursup to
9-10
Heavy Use
Daysup to
5-6
AOD Mode
Daysup to
Power On, Anywhere
Enhance your T4’s endurance with our new portable power pocket. With enough capacity for two full charges, it doubles your smartwatch’s total battery life — delivering up to 50 days of uninterrupted use. Perfect for extended adventures where every day counts.
*Mobile Power Pocket sold separately.
850
mAh
>1 Full Charge
UP
TO 50
TO 50
Days
Battery Life
ApexmoveOS
Powered by
ApexmoveOS
Our self-developed Apexmove OS offers an immersive, intuitive, and personalized user experience, enabling you to access more health and fitness insights, manage routes and offline maps directly within the Apexmove App, and even more.
The Apexmove OS serves as an all-in-one hub for training insights, health monitoring, and personal style. Stay active and motivated with detailed workout records and various achievement badges, enjoy seamless sync to third-party fitness Apps like Strava, and explore more smart lifestyle features in the Apexmove App.
Welcome to Our Self-developed
Apexmove App
Connect and interact with the Apexmove App to customize multiple system settings, dig into and share various health and fitness data monitored by KOSPET TANK T4, customize training plans around your goals, manage your maps and routes for further explorations, and so on.
Unveil & Conquer the Uncharted
Import GPX or KML route files and create your favorite routes and location points via the Apexmove App, so that you can forge, navigate, and even share your own path.
Make Invisible Progress Visible
Customize a series of health and fitness shortcut cards, tap into your daily health and fitness progress and insights, and move towards a more active and healthy lifestyle.
Music That Moves with You
Add your favorite tracks in the Apexmove App and sync them straight to your TANK T4’s 32GB storage. Enjoy offline playback anytime, anywhere—free from your phone.
Master Your Own Training
Optimize your training routine with personalized training plans and refer to a range of free online training courses to enhance your training effectiveness.
Style That’s Uniquely You
Immerse yourself in hundreds of exquisite downloadable watch faces (including paid watch faces) and mix and match with ones that show your personality on your wrist.
Create Your Unique Look
Head to the Apexmove App and customize your watch face for KOSPET TANK T4 by switching between different widgets, themes, and layouts. Tailor every detail to craft the perfect look.
Built-in
Information
Sporty
Futuristic
Vintage
Minimal
Fashionable
Multifunction dial
Personalize your watch face by switching between widgets like steps, weather, and altitude.
Custom dial
Upload your favourite image to the Apexmove App and set it as your watch face.
AOD Dial
Customize and schedule your AOD watch face, or let it follow your current design.
Three Icon Theme Options
Choose between three distinct icon‑based UI themes for a personalized look and mood whenever you feel like a change.
Customizable Shortcut Cards
Rearrange shortcut cards at will, so the features used most frequently are always one swipe away.
Six Menu Layouts
& Three Transition Animations
Go for your preferred system menu and its switching effect by selecting from six menu styles and three transition effects.
COLE HOCKER
World Champion
Olympic Champion
KOSPET Brand Ambassador
Off to a Great Running Start
Refined for Precision in Motion
360-Degree Strength and Durability
Adaptive Brightness Ready to Thrive
Pro Modes for Maximum Performance
Next-level Adventures Forward
Seamless integration,
Enhanced Interactions
2025 Product Design gold winner
KOSPET TANK T4 - Honored with Gold at both the MUSE and London Design Awards for its refined design, delivering a flawless blend of performance and style.
Build Tough,
Refined Harder
With the Inox 360 shield structure, KOSPET TANK T4 features a durable stainless steel body built to survive it all, from -50°C deep cold to 70°C extreme heat, shock, humidity, and more. Its 1.43-inch AMOLED display integrated with an ambient light sensor delivers sharp clarity in multiple lighting environments. Certified by SGS and tested to pass 20 U.S. MIL-STD-810H standards, the smartwatch is indeed crafted for real-world extremes — on city streets or remote trails alike.
Pro-Grade Clarity,
Day or Night
The KOSPET TANK T4 features a spacious 1.43" ultra-clear AMOLED display with up to 1,000 nits peak brightness, ensuring bold, vivid visuals even under direct sunlight.
A built-in ambient light sensor automatically adjusts brightness in real time, keeping dive stats, workout routes, and health data perfectly visible—whether it’s dawn, midday, or dusk.
1000nits
Peak Brightness60Hz
Refresh Rate
Reinforced by
Inox Shield Structure
From the bezel to the back, KOSPET TANK T4 is thoughtfully crafted with premium Inox stainless steel for a sleek yet durable build, so the smartwatch can match the rhythm of daily commute, weekend training, and even wildest adventures.
Proven Toughness,
SGS Tested
Tested by SGS, Europe’s leading independent lab, the KOSPET TANK T4 has aced 20 U.S. MIL-STD-810H military-grade tests, proving its resilience against extreme temperatures, shocks, sand, dust, humidity, and more. Every report and lab result tells the same story — this watch is built to thrive.
High-temperature
Operation Test
Low-temperature Operation Test
Salt Fog / Corrosive
Environments Test
Rain Test
Vibration Test
Sand and Dust Test
Low PressureStorage Test
Low PressureOperation Test
Low-temperatureOperating Test
TemperatureShock Test
High-temperatureStorage Test
High-temperatureOperating Test
Contaminationby Fluids Test
SolarRadiation Test
Low-temperatureStorage Test
Humidity Test
Rain Test
Vibration Test
Fungus Test
Sand andDust Test
FunctionalShock Test
Transit Drop Test
Salt Fog / CorrosiveEnvironments Test
Immersion Test
Shock Test
Freeze-Thaw Test
Dive Deeper, Stay Protected
With 10 ATM and IP69K water resistance ratings, KOSPET TANK T4 is engineered to handle rigorous water environments. From high-pressure rinses to deep-sea dives, it stays sealed, steady, and ready — surviving up to 45 meters underwater.
10 ATM
water resistance
Tested by SGS, Europe's leading independent lab.
*Note: The smartwatch should not be worn during hot showers, in saunas, or during any other activities that involve high temperatures and/or high levels of humidity.
Unleash Your Athletic Potential
Jump into action with KOSPET TANK T4 and switch up your sports performance with a choice of 23 ApexMotion sports modes and 160 freestyle training modes. While you are running on the trail, sliding down the slope, or striving for the mountaintop, the smartwatch provides you with in-depth metrics and post-workout insights to help you train smarter, not just header.
Go the Distance
Engineered for endurance, T4 tracks every mile, every split, and every second of your marathon. From running metrics like pace and stride length to post-running data like VO2 max and recovery time, it’s built to go the distance—just like you.
Find Your Flow Off-Road
Conquer rugged trails with precision metrics like elevation gain, slope, pace, and altitude. T4 keeps you in sync with every incline, every descent, and every breath, helping you push boundaries where the road ends.
Climb with Purpose
From day hikes to alpine treks, T4 records elevation gain, step length, training load, and cadence with pinpoint accuracy. The built-in barometric altimeter keeps your every climb smart and updated.
Whatever You Train, lt Tracks
T4 supports 160 freestyle training modes, delivering full training insights from gym sessions to weekend pursuits. Besides 6 Smart Recognition built-in, it's ready to track a wide range of activities—so your effort is always recorded, and nothing slips by unnoticed.
Every Move Does Count
Whether you are pushing through intense sets or making sharp turns, KOSPET TANK T4 can keep up with your movements with its built-in 6-axis gyroscope, which measures changes in your orientation, acceleration forces, and speed, providing a clearer picture of your body’s responses during critical moments.
Run with Precision,
Pace with Direction
From urban running with tall buildings to trail running through the woods, KOSPET TANK T4 tracks your movement with outstanding accuracy, thanks to its industry-leading dual-band six-system GNSS. By downloading offline maps and selecting the target route or location point, you can run your favourite routes or even along unfamiliar paths.
OPDR Algorithm—It’s All About Accuracy
Empowered by the advanced OPDR algorithm, KOSPET TANK T4 serves to record a dynamic activity trajectory when GPS signals are weak or unavailable during outdoor workouts, such as under bridges, so you can tune into your performance anytime, anywhere.
≈ 5,000 Songs, 100 Maps
— All in 32GB Storage
Say goodbye to your phone during workouts with KOSPET TANK T4’s massive 32GB storage — enough for about 5,000 songs and 100 offline maps. and perhaps all your training data.
*Disclaimer: Actual available storage may be less than 32GB due to system software. Music and map capacity varies based on file format, quality, and usage conditions.
Route Import
& Offline Map Support
To keep you updated on your position as you navigate, KOSPET TANK T4 allows for swift import of GPX or KML route files via the Apexmove App and offline map downloads using a computer or tablet.
Get in Touch
with Walkie-talkie
Whether you're on a mountain trail or in a dense forest, the TANK T4’s built-in walkie-talkie lets you reach your teammates instantly—push-to-talk within a 40m radius, no internet needed. Rugged, reliable, and always within range when you need it most.
*Range may vary with environmental conditions.
Elevated On-Wrist
Health Monitoring
Equipped with the leading-edge 4PD sensor that picks up more optical signals for faster and more precise measurements, KOSPET TANK T4 assists you in tuning into your health and wellness on a daily basis.
All-Day Health Management
Heart Rate Monitoring
Keep tabs on your heart health around the clock with 24/7 heart rate monitoring and receive timely alerts for abnormal values detected.
Blood Oxygen Monitoring
Monitor your SpO2 throughout the day with the low blood oxygen alert to help you stay on top of your respiratory well-being.
Stress Monitoring
Monitor your real-time stress level based on heart rate variability and show stress changes throughout the day for better stress management.
Sleep Tracking
Shape healthier rest habits with smart sleep tracking (including naps) and wake up with insightful data such as analysis of major sleep stages.
Menstrual Cycle Tracking
Track your menstrual cycle from beginning to end and get timely predictions and reminders for your upcoming period, fertile window, and ovulation day.
One-Tap Health Check
A simple tap on KOSPET TANK T4 enables simultaneous monitoring of your heart rate, blood oxygen level, stress level, and mood.
Endurance
You Can Count On
With a high-capacity battery and optimized power management, the KOSPET TANK T4 keeps going long after others quit — lasting up to 14-15 days in typical use, 9-10 days in heavy use, and 5–6 days with Always-On Display enabled. Even during GPS-intensive adventures, you’ll get up to 21–22 hours of continuous tracking, so your journey is never cut short by a low-battery warning.
14-15
Daysup to
21-22
Hoursup to
9-10
Daysup to
5-6
Daysup to
Power On, Anywhere
Enhance your T4’s endurance with our new portable power pocket. With enough capacity for two full charges, it doubles your smartwatch’s total battery life — delivering up to 50 days of uninterrupted use. Perfect for extended adventures where every day counts.
*Mobile Power Pocket sold separately.
850
mAh
>1 Full Charge
50
up to
Days
Battery Life
ApexmoveOS
Powered by
ApexmoveOS
Our self-developed Apexmove OS offers an immersive, intuitive, and personalized user experience, enabling you to access more health and fitness insights, manage routes and offline maps directly within the Apexmove App, and even more.
The Apexmove OS serves as an all-in-one hub for training insights, health monitoring, and personal style. Stay active and motivated with detailed workout records and various achievement badges, enjoy seamless sync to third-party fitness Apps like Strava, and explore more smart lifestyle features in the Apexmove App.
Welcome to Our Self-developed
Connect and interact with the Apexmove App to customize multiple system settings, dig into and share various health and fitness data monitored by KOSPET TANK T4, customize training plans around your goals, manage your maps and routes for further explorations, and so on.
Unveil & Conquer the Uncharted
Import GPX or KML route files and create your favorite routes and location points via the Apexmove App, so that you can forge, navigate, and even share your own path.
Make Invisible Progress Visible
Customize a series of health and fitness shortcut cards, tap into your daily health and fitness progress and insights, and move towards a more active and healthy lifestyle.
Music That Moves with You
Add your favorite tracks in the Apexmove App and sync them straight to your TANK T4’s 32GB storage. Enjoy offline playback anytime, anywhere—free from your phone.
Master Your Own Training
Optimize your training routine with personalized training plans and refer to a range of free online training courses to enhance your training effectiveness.
Style That’s Uniquely You
Immerse yourself in hundreds of exquisite downloadable watch faces (including paid watch faces) and mix and match with ones that show your personality on your wrist.
Create
Your Unique Look
Head to the Apexmove App and customize your watch face for KOSPET TANK T4 by switching between different widgets, themes, and layouts. Tailor every detail to craft the perfect look.
Built-in
Information
Sporty
Futuristic
Vintage
Minimal
Fashionable
Multifunction dial
Personalize your watch face by switching between widgets like steps, weather, and altitude.
Custom dial
Upload your favourite image to the Apexmove App and set it as your watch face.
AOD Dial
Customize and schedule your AOD watch face, or let it follow your current design.
Three Icon Theme Options
Choose between three distinct icon‑based UI themes for a personalized look and mood whenever you feel like a change.
Customizable Shortcut Cards
Rearrange shortcut cards at will, so the features used most frequently are always one swipe away.
Six Menu Layouts
& Three Transition Animations
Go for your preferred system menu and its switching effect by selecting from six menu styles and three transition effects.
video
Swipe up or down to
switch videos
Free Shipping
Free Shipping over $99
Warranty
1-Year Warranty
Money-back Guarantee
7-day Satisfaction Guaranteed
Customer Support
Live Chat & Email