Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
KOSPET Tank T4C Silver 1.5-inch AMOLED always-on display
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Last known price: BYN 504.83 (BYN)
Price source: Rulez BY
Price record dated 11/4/26
Saved price in the source currency; not a current offer. The date refers to the price record, not a stock check.
Features
- 1.5-inch AMOLED always-on display
- Heart rate and SpO2 monitoring
- Built-in GPS
- Bluetooth 5.3 connectivity
- IP69K and 5 ATM water resistance
- Up to 360-hour battery life
- Voice assistant support
- Call and notification alerts
- Automatic workout detection
- Sport profiles incl. swimming
- Sleep and stress tracking
- Compass, altimeter, barometer
- Flashlight mode
General specs
- Brand: KOSPET
- Model: Tank T4C
- Seller: Rulez BY
- ID: 1377253
- Brand: Kospet
- Model: Tank T4C
- First listed by seller: June 17, 2026
The Kospet Tank T4C smartwatch serves the dedicated athlete and outdoor explorer. You swim, run, bike, and lift, often in rough conditions. This watch tracks every session and withstands mud, pool water, and accidental drops. It goes beyond basic stats: it interprets your data to recommend when your body is ready for another hard effort.
The 1.5-inch AMOLED display remains vivid and legible in direct sunlight. A raised, gloved finger starts your run tracking without frustration. GPS locks onto your location quickly, so you spend less time waiting at the trailhead. At night, the watch monitors your sleep stages and blood oxygen levels. You wake up to a readiness score, helping you decide if today calls for intensity or active recovery.
With a 15-day battery life, you charge less often and track more data. The built-in microphone and speaker support calls from your wrist when your phone is stowed. Voice assistant access sets reminders and checks weather without stopping your activity. An IP69K rating means dust, high-pressure water, and extreme temperatures won’t stop it. The always-on screen shows your stats at a glance, and the magnetic charger snaps into place easily. Compatible with Android and iOS.
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