Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
KOSPET Tank M4 Smart Watch (Black): AMOLED Always-On Display
If you are interested in more details, you can find full information on the seller's page.
BYN 574.64
Last price update: 11/14/26
Available to order
We may earn a commission
Shipping options
Delivery to 
Belarus
Belarus
Available
Product details
Features
- IP69K Water and Shock Resistance
- Heart Rate and SpO2 Monitor
- Built-in GPS
- 360-Hour Battery Life
- 32 GB Internal Storage
- Skin Temperature Measurement
- Depth Gauge and Altimeter
- Voice Assistant
- Built-in Music Player
- AMOLED Always-On Display
You push your limits outdoors, from mountain trails to ocean depths. The Kospet Tank M4 matches that intensity. Its 1.96-inch always-on AMOLED display stays sharp under direct sunlight, and the stainless steel case withstands rough impacts. This rugged smartwatch tracks your heart rate, steps, and stress while you move.
But this device goes beyond fitness. It serves as a reliable dive companion. The water temperature sensor and depth gauge deliver real-time data as you explore. The watch automatically logs your dive, then calculates your surface recovery time. Back on land, the barometer and GPS guide your return trek. The magnetic charger secures firmly. Battery life reaches 15 days in normal mode, so you recharge less often.
Stay connected without pulling out your phone. Take calls via Bluetooth, control your camera remotely, and play your stored music straight from the watch. Voice commands manage tasks while your hands stay free. With a durable silicone strap and scratch-resistant glass, the Tank M4 withstands the elements so you focus on the experience.
General specs
- Brand: KOSPET
- Model: Tank M4
- Seller: Rulez BY
- ID: 1377042
- Type: Smartwatch
- Brand: Kospet
- Model: Tank M4
- Product Code: 3655784
- First listed by seller: June 17, 2026
Price History for seller Rulez BY
Similar products comparison
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
KOSPET Tank M4 Black AMOLED Always-On Display
|
KOSPET Tank T4 Black 10 ATM waterproof and MIL-STD-810H certified
|
KOSPET M4 Silver 1.96-inch AMOLED Always-on Display
|
KOSPET Tank T4 Silver 1.43-inch always-on AMOLED display
|
KOSPET Tank M4C Black IP69K dust/water/shock resistance
|
Garmin Fenix 8 AMOLED display
|
|
| Brand | KOSPET | KOSPET | KOSPET | KOSPET | KOSPET | Garmin |
| Model | Tank M4 | Tank T4 | M4 | Tank T4 | Tank M4C | Fenix 8 |
| Color |
|
|
|
|
|
|
| Price | BYN 574.64 | BYN 552.71 | BYN 701.27 | BYN 578.42 | BYN 504.83 | BYN 4,016.10 |
| Seller | Rulez BY | Rulez BY | Rulez BY | Rulez BY | Rulez BY | Rulez BY |
| Update | Nov 14, 2026 | Nov 14, 2026 | Nov 14, 2026 | Nov 14, 2026 | Nov 14, 2026 | Nov 14, 2026 |
| Type | Smartwatch | Smart watch | Smartwatch | |||
| Product Code | 3655784 | 3655800 | 3655803 | 3656086 | 3477252 | |
KOSPET Tank M4 Black AMOLED Always-On Display
BYN 574.64
We may earn a commission
When this device makes sense
Product confidence
Reviews
There are no text reviews yet. If you have experience using this product, please leave a review. It will help other people decide whether this product is right for them.