
The KOSPET TANK M4 smartwatch is designed for an active life, sports, and challenging outdoor conditions. It combines a durable stainless steel body, a large 1.96" AMOLED display, long battery life, and advanced features for training, navigation, and everyday use. With 10 ATM water resistance and an IP69K rating, it can handle swimming, water sports, and diving modes, while dual-band GPS support, offline maps, and route importing will help you when running, hiking, or travelling. The KOSPET TANK M4 also offers continuous health monitoring, over 180 sports modes, Bluetooth calling, a torch, a compass, an altimeter, and a connection to the Apexmove app.
The KOSPET TANK M4 smartwatch is designed to handle both daily wear and more demanding outdoor activities. The stainless steel construction uses the Inox 360 solution, which includes the bezel, case, and physical buttons. The watch's durability has been tested according to 20 MIL-STD-810H standards, including tests for high and low temperatures, humidity, shocks, vibrations, rain, dust, sand, and thermal shocks. This makes it ready for training, hiking, travelling, and everyday use in changing environments.
The KOSPET TANK M4 offers 10 ATM water resistance and an IP69K rating, making it suitable not only for everyday contact with water but also for swimming, water sports, and diving activities. The watch is designed to withstand water pressure equivalent to a depth of 100 metres and supports dives of up to 45 metres. This means you can use it for swimming, surfing, freediving, and recreational diving. The watch is not intended for use in hot showers, saunas, or activities involving high temperatures and humidity.
The KOSPET TANK M4 watch features three diving modes: Freedive, Scuba Dive, and Gauge. In freediving mode, it tracks metrics such as dive duration, maximum depth, surface intervals, and average temperature. The Scuba Dive mode lets you work with parameters like oxygen percentage or PO₂ limit, and provides an overview of important data for recreational diving. The Gauge mode serves as a basic bottom timer or a backup tool for more experienced divers, as it displays dive time and depth.
The large 1.96" AMOLED display shows data clearly during sports, everyday use, and outdoors. A resolution of 410×502px, a pixel density of 331 PPI and a brightness of up to 1000 nits ensure good readability in various light conditions. The integrated ambient light sensor automatically adjusts the display's brightness according to the environment, making the watch easy to use during the day, in the evening, and when moving quickly between indoors and outdoors.
The KOSPET TANK M4 helps you track your performance when running, cycling, swimming, skiing, hiking and other sports. It offers 23 ApexMotion modes and another 160 free training modes, so it easily adapts to regular training as well as specific outdoor activities. The watch can track pace, cadence, distance, elevation, heart rate, heart rate zones, SWOLF, number of laps, and average swimming pace, for example.
The built-in 6-axis gyroscope helps the watch better track movement, changes in direction, posture and dynamics during training. This enables the KOSPET TANK M4 to capture intense exercise, rapid changes in movement, and sports activities with greater accuracy. The measured data then provides a better overview of your performance and progress during regular training.
The KOSPET TANK M4 uses dual-band L1+L5 GPS and supports six satellite systems – GPS, Galileo, GLONASS, BeiDou, QZSS and NavIC. This enables it to more accurately track your route when running, hiking, cycling and other outdoor activities. The OPDR algorithm helps maintain more accurate activity tracking even in more challenging conditions, such as in built-up urban areas, under bridges, or in places with a weaker GPS signal.
With the KOSPET TANK M4 watch, you can use offline maps, route import, route recording, return along a route and real-time navigation. You can import GPX or KML files via the Apexmove app, or prepare your own route. Thanks to 32GB of storage, you can save offline maps to the watch and set off on your journey without constantly relying on your phone.
The internal 32GB of storage offers space for offline maps and music. The watch can hold approximately up to 100 offline maps or up to 5000 songs, making it suitable for sports and travel without needing to have your phone with you at all times. The actual available capacity may vary depending on system software, file format and usage.
The built-in Walkie-talkie function enables quick communication with other users of compatible watches. When cycling, hiking or moving through nature, a simple press and hold provides an instant connection. The range may vary depending on surrounding conditions, terrain and obstacles.
The KOSPET TANK M4 is equipped with an advanced 4PD health sensor that enables continuous tracking of important indicators. The watch monitors heart rate, blood oxygen SpO₂, stress level, mood and sleep, including sleep stages and REM. It also offers alerts for an unusually high or low heart rate and low blood oxygen levels. One-touch measurement lets you quickly check selected values in one place.
The watch helps you track your sleep quality, including the main sleep stages, REM sleep and short naps. In the app, you can create your own sleep plan and get an overview of your sleep duration and progress in the morning. This gives you a better insight into how your resting habits are changing and how sleep relates to your overall recovery.
The 500mAh battery provides up to 14–15 days of battery life with normal use. With more demanding use, the watch lasts approximately 9–10 days, with the Always-On display mode about 5–6 days, and with continuous GPS use up to 21–22 hours. The magnetic charging dock enables convenient charging, and a full charge takes approximately 2 hours.
The Apexmove OS operating system delivers intuitive controls, a personalised environment and a connection to the Apexmove app. In the app, you can view detailed health and fitness data, manage training plans, create routes and points on a map, download offline maps, or sync music directly to the watch. It also supports synchronisation with Apple Health and Strava.
The KOSPET TANK M4 lets you customise the appearance of the watch face and the interface to your preferences. In the Apexmove app, you can choose from a wide range of watch faces, edit widgets, upload your own picture, set an AOD watch face or customise shortcut cards. Several menu styles, icon themes and transition animations are also available.
The watch is equipped with a built-in speaker and microphone, so it supports Bluetooth calling. It alerts you to phone notifications and offers practical outdoor functions, such as a compass, barometric altimeter, torch, temperature sensor, weather information, moon phase, tide, and sunrise and sunset times. This makes it useful not only for sports, but also for everyday use.
Specifications can be changed without notice. Images are for illustrative purposes only.