F300 Smart Watch: ECG monitoring
But here's where it gets really cool: this watch is like having a mini health lab on your wrist. It can do ECG and blood composition analysis (think uric acid and blood lipids), check your blood sugar without any needles (yes, really), track your sleep like a sleep scientist, and keep an eye on your stress and heart rate. Because let's face it, we could all use a little more peace of mind.
And for those who love to move, it's got you covered with 52 sports modes (because sometimes running just doesn't cut it). Stay connected with call and message notifications, snap pics from afar, control your tunes, and it even speaks your language—36 in the app and 8 right on the watch. Talk about being worldly.
Just a heads-up: while it's packed with features, it's not a medical device. So take those results with a grain of salt and always consult a pro for medical advice.
Product details
General specs
- Model: F300
- Seller: Sunsky
- Screen: 2.1-inch, IPS LCD, 280x320 resolution
- Battery: 260 mAh, 10-12 days regular use, 5-7 days with all-day monitoring
- Connectivity: Bluetooth 5.3
- Waterproof: IP67
- Sensors: STK8321-W (Gsencor), VP556EP (Heart rate)
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Video Reviews
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| Brand | Various wearables | |||||
| Model | F300 | ET587 | ET490 | ET480 | S25 | |
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| Price | $28.05 | $20.49 | $33.39 | $50.59 | $88.04 | $34.23 |
| Seller | Sunsky | Sunsky | Banggood | Banggood | Banggood | Joom |
| Update | June 6, 2025 | May 31, 2025 | June 5, 2025 | June 3, 2025 | June 3, 2025 | June 2, 2025 |
| Bluetooth Version | 5.2BLE | BT5.2 | 5.3BLE | |||
| Compatible OS | Android 5.0 and above, iOS 10.0 and above | Android 4.4 and above, Apple IOS 8.2 and above | Android 6.0 and above, Apple IOS 11.0 and above | |||
| Screen Size | 1.27 inch | 1.43 inch | 1.43 inch | |||
| Resolution | 360x360 pixels | 466*466 pixels | 466x466 pixels | |||
| Battery Capacity | 200mAh | 300mAh | 530mAh | |||
| Standby Time | About 20-25 days | About 20-25 days | About 25-30 days | |||
| Using Time | About 3-7 days | About 4-7 days | About 7-12 days | |||
| Charging Time | About 2-3 hours | About 2-3 hours | About 2-3 hours | |||
