The technical specifications for the KOSPET TANK M3 Ultra Rugged Smartwatch :

Product Info:

• Brand: KOSPET
• Model: TANK M3 ULTRA
• Colors: Black, Silver

Advantages:

• Military Certification: US MIL-STD 810H (15 items)
• Waterproof Ratings: 5ATM & IP69K (supports swimming and diving)
• Rugged Design: Original rugged design, global patent registered
• Tempered Glass: 3rd generation Corning Gorilla Glass (touch panel & heart rate panel)
• Materials: 316L stainless steel bezel, metal frame, stainless steel back cover, aluminum alloy buttons

Hardware:

• GPS: Dual-band (L1+L5), 6 satellite positioning system
• Compass & Barometer/Altimeter
• Bluetooth: Actions ATS3085L, 128MHz M4F+192MHz DSP, 256M NOR, BT V5.3
• Heart Rate Sensor: VC9202+VP60 A2 (living-body recognition & dark-skin detection)
• G-Sensor: STK8325 3-axis acceleration sensor
• Display: 1.96" AMOLED 410*502, always-on display
• Memory: 256M NOR
• Battery: 480mAh pure cobalt battery
• Battery Life: Standby 50 days, Daily Use 10-15 days, Always-On 2-3 days
• Speaker, Microphone, Motor

Software:

• Sports Modes: 170+ modes with smart recognition
• Health Monitoring: Heart rate, blood oxygen, blood pressure (via algorithm)
• Sleep Tracking: 24-hour smart sleep monitoring
• Other Health Features: Women's period tracking, breathing training, pressure testing
• Other Features: Phone/message reminders, music control, weather, calculator, alarms, etc.
• Languages: 32 built-in languages with Bangla

Dimensions:

• Wrist Size: 150-220mm length
• Case Size: 43mm diameter, 12.8mm thickness
• Weight: 76g (watch), 280g (package)

Included:

• Smartwatch, magnetic charging base, tempered glass film, user manual

Water Resistance:

The KOSPET TANK M3 Ultra has a water resistance rating of 5ATM and IP69K, which means it can withstand swimming and diving to certain depths. The exact depth rating is not specified.