Description
KOSPET TANK M4 Smartwatch – 1.96″ AMOLED Scuba Diving Watch, 10 ATM, Military-Grade Rugged, Dual-Band GPS & 32GB Storage:
If you are looking for a serious rugged smartwatch in Bangladesh that goes beyond ordinary fitness tracking — one that handles real diving, survives extreme conditions, and delivers premium performance at an accessible price — the KOSPET TANK M4 is the watch for you. Certified by SGS and tested against 20 U.S. MIL-STD-810H military standards, the TANK M4 is a Gold Award-winning outdoor sports and diving smartwatch built for active men who refuse limits.
Key Features
- 1.96-inch AMOLED display, 410×502 px, 1,000 nits brightness, ambient light sensor, 60Hz
- 10 ATM and IP69K water resistance — supports dives up to 45 meters
- 3 dedicated dive modes: Freedive, Scuba Dive, and Gauge
- Military-grade durability — passes 20 MIL-STD-810H tests, SGS certified
- Dual-band (L1+L5) six-system GNSS with OPDR algorithm
- 32GB internal storage — approximately 5,000 songs and 100 offline maps
- Built-in walkie-talkie — push-to-talk within 40m, no internet needed
- 23 ApexMotion sports modes plus 160 freestyle training modes
- 6-axis gyroscope and 4PD advanced health sensor
- Up to 15 days battery life (typical use), 21-22 hours continuous GPS
- GPX and KML route import via Apexmove App
- 24/7 heart rate, SpO2, sleep, stress, and menstrual cycle tracking
- Strava sync via ApexmoveOS
- Gold Winner — MUSE Design Awards and London Design Awards 2025
Specifications
| Display | 1.96-inch AMOLED, 410×502 px, 331 PPI, 1,000 nits, 60Hz, auto-brightness |
|---|---|
| Build | Inox 360 stainless steel shield structure, SGS certified |
| Durability | 20 x U.S. MIL-STD-810H military-grade tests passed |
| Water Resistance | 10 ATM and IP69K — up to 45 meters underwater |
| Dive Modes | Freedive, Scuba Dive (NDL, decompression stops), Gauge |
| GPS | Dual-band L1+L5, six-system GNSS, OPDR algorithm — 21-22 hrs continuous |
| Storage | 32GB (offline maps, music, training data) |
| Walkie-Talkie | Built-in, push-to-talk, 40m range (no internet required) |
| Sport Modes | 23 ApexMotion modes + 160 freestyle modes + 6 smart auto-recognition |
| Sensors | 4PD optical sensor, 6-axis gyroscope, barometric altimeter |
| Battery | 14-15 days typical; 9-10 days heavy; 5-6 days AOD; 22 hrs GPS |
| Health Monitoring | Heart rate, SpO2, stress, sleep (REM), menstrual cycle, one-tap check |
| Operating Temp | -50°C to 70°C |
| OS & App | ApexmoveOS — Apexmove App (Android & iOS), Strava sync |
| Colors | Black, Silver |
Product Description
The KOSPET TANK M4 Smartwatch is the flagship diving and outdoor adventure watch from KOSPET — designed for water sports enthusiasts, outdoor athletes, and adventurous men in Bangladesh who need a smartwatch that can handle everything from city runs to open-water dives. It won Gold at both the MUSE Design Awards and London Design Awards 2025, recognising its unique balance of precision engineering and bold design.
The defining capability of the TANK M4 is its genuine dive watch functionality. With 10 ATM and IP69K water resistance tested by SGS — safe to 45 meters underwater — this is one of the very few affordable smartwatches in Bangladesh that supports real recreational diving. Three dedicated dive modes cover every level of underwater activity. Freedive Mode tracks dive time, maximum depth, surface intervals, and includes breath-holding training for stamina. Scuba Dive Mode supports configurable oxygen percentage and PO2 limits, displays NDL (no-decompression limit), and issues decompression stop reminders to reduce the risk of decompression sickness. Gauge Mode functions as a basic bottom timer and depth display, ideal as a reliable backup to a dedicated dive computer.
On land, the TANK M4 is equally capable. The 1.96-inch AMOLED display — the largest in KOSPET’s lineup — reaches 1,000 nits with auto-brightness adjustment, keeping your pace, maps, and health data clearly visible in all lighting conditions including bright Bangladeshi sunlight. The full Inox 360 stainless steel body is built to survive -50°C to 70°C temperatures, shocks, salt fog, sand, humidity, and rain — all verified by SGS against 20 MIL-STD-810H standards.
The dual-band L1+L5 six-system GNSS with OPDR algorithm tracks outdoor routes with precision even in urban environments like Dhaka where tall buildings regularly block GPS signals. 32GB internal storage holds up to 100 offline maps and 5,000 songs — so you run, hike, or dive without carrying your phone. The built-in walkie-talkie enables instant push-to-talk communication with teammates within 40 meters — no mobile network or internet needed, ideal for group hikes, trail runs, or water sports in remote areas of Bangladesh.
With 23 ApexMotion sports modes covering running, swimming, cycling, skiing, mountaineering, and more — plus 160 freestyle training modes — and comprehensive 24/7 health monitoring including heart rate, SpO2, sleep with REM tracking, and stress, the TANK M4 is a complete outdoor performance system on your wrist.
What’s in the Box?
- 1 x KOSPET TANK M4 Smartwatch
- 1 x Silicone Strap (Basic package)
- 1 x Magnetic Charging Cable
- 1 x User Manual
What Is the Price of KOSPET TANK M4 Smartwatch in Bangladesh?
The KOSPET TANK M4 price in Bangladesh is listed on this page at Gadget Striker. For a smartwatch offering genuine scuba dive modes, 10 ATM depth rating, 1.96-inch AMOLED display, 32GB storage, military-grade durability, and a 15-day battery — this is one of the best-value rugged diving smartwatches available in BD, well below comparable Garmin, Suunto, or Casio ProTrek alternatives. Check the current price above and order today.
Buy KOSPET TANK M4 from Gadget Striker
Gadget Striker is a trusted gadget retailer in Bangladesh delivering 100% genuine products with fast, reliable nationwide delivery. When you order the KOSPET TANK M4 Smartwatch from Gadget Striker, you get an authentic product, doorstep delivery to Dhaka and all districts across BD, and dependable customer support. Order now and take the most capable diving and outdoor smartwatch in its price range straight to your wrist.
Frequently Asked Questions (FAQ)
Q1: Is the KOSPET TANK M4 safe for recreational scuba diving?
Yes. It is rated 10 ATM and IP69K, tested by SGS, and safe for dives up to 45 meters. The dedicated Scuba Dive Mode displays NDL, oxygen settings, and decompression stop alerts for recreational diving safety.
Q2: What is the difference between KOSPET TANK M4 and TANK T4?
The M4 features a larger 1.96-inch display and is purpose-built for diving with three dedicated dive modes. The T4 has a 1.43-inch display and is optimised for running and trail sports. Both share the same military-grade durability, GPS, walkie-talkie, and 32GB storage.
Q3: Can I use offline maps and music without carrying my phone?
Yes. The 32GB storage holds up to 100 offline maps and approximately 5,000 songs, downloadable via the Apexmove App before your activity. Your phone stays behind.
Q4: How does the walkie-talkie work on the TANK M4?
The built-in walkie-talkie uses push-to-talk communication within a 40-meter radius with no internet or mobile network needed. It works between two KOSPET TANK M4 watches.
Q5: What app does the KOSPET TANK M4 use and does it work in Bangladesh?
It uses the free Apexmove App, available on Android and iOS, fully functional in Bangladesh. It supports route management, health tracking, training plans, offline map downloads, and Strava sync.
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