Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
KOSPET Tank M3 Ultra Silver IP69K Military-Grade Durability
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Last known price: BYN 313.09 (BYN)
Price source: Rulez BY
Price record dated 9/9/26
Saved price in the source currency; not a current offer. The date refers to the price record, not a stock check.
Features
- IP69K Military-Grade Durability
- 1.96-inch AMOLED Always-On Display
- Built-in Heart Rate & SpO2 Monitoring
- Built-in GPS Tracking
- Bluetooth 5.3 Calls & Notifications
- Up to 15 Days Battery Life
- Gorilla Glass 3 Scratch Protection
- 20+ Sports Modes with SWOLF
- Barometer, Altimeter & Compass
- Sleep & Stress Tracking
General specs
- Brand: KOSPET
- Model: Tank M3 Ultra
- Seller: Rulez BY
- ID: 1080061
- Type: Smart watch
- Brand: Kospet
- Model: Tank M3 Ultra
- First listed by seller: June 17, 2026
You venture off-grid. The Kospet Tank M3 Ultra stays on your wrist through mud, snow, and saltwater. Its MIL-STD-810H certification and IP69K rating shield against shock, dust, and high-pressure jets. You focus on the climb while it handles the knocks.
A sharp 1.96-inch AMOLED display with 1000-nit brightness cuts through glare so you read your stats mid-stride. The barometer and altimeter keep you aware of elevation shifts; built-in GPS guides you on unfamiliar trails. During a grueling hike, the heart rate monitor tracks exertion, and SpO2 readings confirm your body’s adaptation to altitude.
When you return to routine, the watch monitors sleep, stress, and blood pressure trends. Take calls and read notifications right from your wrist. The 15-day battery and magnetic charger eliminate cord clutter. Swap bands to match your style. The Tank M3 Ultra adapts to every challenge without asking for a pause.
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