Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
CK78 IP68 Waterproof Bluetooth Smart Watch
Available Options
Current
IP68 Waterproof
Alibaba
€17.20
Available to order
Features
- IP68 waterproof rating
- Heart rate monitor
- Tracker function
- Bluetooth smart watch
- Wrist band
Product details
General specs
- Model: CK78
- Model: CK78
- Heart Rate Monitoring: Heart Rate Monitor
If you are interested in more details, you can find full information on the seller's page.
€17.20
Last price update: 9/22/26
Available to order
Shipping options
Delivery to 
United States
United States
Available
The CK78 is a Bluetooth smartwatch with a wrist band. It includes a heart rate monitor and a tracker function, though the source does not specify what the tracker measures. It has a stated IP68 waterproof rating.
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| Brand | COLMI | LEMFO | ESEED | |||
| Model | CK78 | M28 | SKY 2 | LEMT | Z7 | |
| Color | ||||||
| Rating | ||||||
| Price | €17.20 | €10.67 | €22.83 | €16.57 | €115.45 | €9.04 |
| Seller | Alibaba | Alibaba | Alibaba | Alibaba | Alibaba | Alibaba |
| Update | Sep 28, 2026 | Sep 28, 2026 | Sep 28, 2026 | Sep 28, 2026 | Sep 28, 2026 | Sep 28, 2026 |
| Bluetooth | bluetooth | Bluetooth | bluetooth | |||
| Fitness Tracking | Fitness Tracker | Sport fitness tracker | fitness tracker | |||
| Product Type | Smart watch | smart watch | Smart Watch, Wristwatch | |||
| Water Resistance | waterproof | waterproof | Waterproof | |||
Bluetooth Smart Watch IP68 waterproof rating
€17.20
When this device makes sense
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