ESTG KC91 Smart Watch: 530 mAh battery
Let me tell you about the KC91 Smart Watch — because, honestly, it’s like having a tiny, hyper-competent assistant strapped to your wrist. This thing doesn’t just tell time; it’s got a 530 mAh battery that laughs in the face of your all-day binge-watching sessions (okay, maybe not, but it lasts impressively long). Need light? Boom, LED flashlight. Lost in the woods? The built-in compass and altitude measurement have your back. And for those who geek out over weather patterns, the atmospheric pressure sensor is like having your own mini meteorologist. Oh, and it lets you take calls via Bluetooth, because apparently, we’re living in the future. Plus, it’s got a fitness tracker to guilt-trip you into moving more. Whether you’re scaling mountains or just scaling your inbox, the KC91 is the overachiever of smartwatches.
Features
- LED flashlight
- Compass
- Altitude measurement
- Atmospheric pressure sensor
- Bluetooth calling
- Fitness tracker
- 530 mAh battery
General specs
- Brand: ESTG
- Model: KC91
- Seller: Joom
- ID: 68864f3f2028e501661b3e0e
- Battery Capacity: 530 mAh
- Features: LED flashlight, Compass, Altitude measurement, Atmospheric pressure sensor, Bluetooth calling, Fitness tracker
- First listed by seller: 8/7/25
If you are interested in more details, you can find full information on the seller's page.
View on seller's site
#publicidad
$52.53
Last price update: 11/15/25
Out of stock
Price History for seller Joom
| Date | Price |
|---|---|
| 11/15/25 | $52.53 |
| 8/7/25 | $48.49 |
Shipping options
Delivery to 
United States
United States
Unavailable
Comparison with similar products
| This item | Recommendations | |||||
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ESTG KC91 Black 530 mAh battery
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Smart Health Monitoring Watch 1.43-inch AMOLED Display
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Smart Sports Watch Fitness tracking
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Smart Health Monitoring Watch 1.49inch AMOLED Display
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Outdoor Smart Watch Bluetooth call
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Choiknbo ac34e7a4-c908-4a12-bcce-54656dac82a8 Heart Rate and Fitness Tracker
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| Brand | ESTG | Choiknbo | ||||
| Model | KC91 | ET480 | E800 | K55 | ac34e7a4-c908-4a12-bcce-54656dac82a8 | |
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| Price | $52.53 | $39.42 | $37.99 | $50.03 | $42.99 | $17.09 |
| Seller | Joom | Banggood | Gshopper | Banggood | Gshopper | Amazon |
| Update | November 18, 2025 | January 14, 2026 | July 25, 2024 | January 15, 2026 | July 25, 2024 | January 21, 2026 |
| Battery Capacity | 530 mAh | 300mAh | 350mAh | |||
| Waterproof | IP68 | IP68 | IP68 | |||
Smart Watch
$52.53
Reviews
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