KOSPET tank t4 smartwatch black with silicone straps#color_black
KOSPET tank t4 smartwatch black with silicone straps#color_black
KOSPET tank t4 smartwatch black with silicone straps#color_black
KOSPET tank t4 smartwatch black with silicone straps#color_black
KOSPET tank t4 smartwatch black with silicone straps#color_black
KOSPET tank t4 smartwatch black with silicone straps#color_black
Pre-Order: Early Bird Special

KOSPET TANK T4 Smartwatch

Sale price$179.99 Regular price$209.99
Save $30.00

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.

Ends in --
Code: TM4ACH
Pre-Order Offer
Color: Black
Note: Your smartwatch will be shipped from Oct. 15th.
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 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

2-Year Warranty

7-Day Trial

24/7 Support 

50% Off Accessories with Your Watch

50% Off

Not valid with other product offers. New leather and nylon straps are not included.

KOSPET 22mm Premium Archlan Leather Strap#color_black
New

KOSPET 22mm Premium Archlan Leather Strap

Brown
$19.99 USD
KOSPET Tank T4 Smartwatch Power Pocket
New

KOSPET Tank T4 Smartwatch Power Pocket

$19.99 USD
kospet_22mm_woven_nylon_sport_loop_strap#color_Silver Grey / Orange Stripe

KOSPET 22mm Woven Nylon Sport Loop Strap

Silver Grey / Orange Stripe
$15.99 USD
KOSPET 22mm Camouflage Strap

KOSPET 22mm Camouflage Strap

$8.00 USD
$15.99 USD
KOSPET 22mm Magnetic Strap
Save $3.00

KOSPET 22mm Magnetic Strap

Orange with Yellow
$8.00 USD
$12.99 USD
KOSPET 22mm Stainless Steel Double Deployant Strap

KOSPET 22mm Stainless Steel Double Deployant Strap

Black
$10.00 USD
$19.99 USD
KOSPET 22mm Stainless Steel Folding Clasp Strap

KOSPET 22mm Stainless Steel Folding Clasp Strap

Silver
$10.00 USD
$19.99 USD
KOSPET TANK T3 ULTRA 2 Protective Film

KOSPET TANK T3 ULTRA 2 Protective Film

$6.50 USD
$12.99 USD
KOSPET Universal Magnetic Charging Cable

KOSPET Universal Magnetic Charging Cable

$6.50 USD
$12.99 USD
KOSPET TANK T4 Smartwatch
Black
Sale price$179.99 Regular price$209.99
- $30.00
Overview

COLE HOCKER

WORLD CHAMPION

OLYMPIC CHAMPION

KOSPET BRAND AMBASSADOR

Off to a Great Running Start

A wide array of real-time metrics for peak efficiency and performance, dedicated to every runner.

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.

APro-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.

1,000nits

Peak Brightness

60Hz

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 Pressure Storage Test
Low Pressure Operation Test
High-temperature Storage Test
High-temperature Operating Test
Low-temperature Storage Test
Humidity Test
Fungus Test
Salt Fog / Corrosive Environments Test
Sand and Dust Test
Immersion Test
Low-temperature Operating Test
Temperature Shock Test
Contamination by Fluids Test
Solar Radiation Test
Rain Test
Vibration Test
Functional Shock 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.

Outdoor Running

Trail Running

Mountaineering

More Modes

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

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
Days up to

Typical Usage

Typical Use Battery Life

21-22
Hours up to

Continuous GPS Usage

Continuous GPS Usage

9-10
Days up to

Heavy Use

Heavy Use Battery Life

5-6
Days up to

AOD Mode

AOD Mode Battery Life

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 Days

Battery Life

850 mAh

>1 full charge

50
up to Days

Battery Life

Get a brand new experience in

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.

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 Watch Dial

Customize and schedule your AOD watch face, or let it match the current theme.

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.

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International Delivery

Free Shipping over $99

Good Quality

100% Original Quality

Customer Support

Live Chat & Email

Warranty

1-2 Year Warranty