FKGZJF Smart Ring with Health and Fitness Tracking: No subscription fee
For the active professional who wants health insights without the bulk of a watch, the FKGZJF Smart Ring fits seamlessly into your day. It’s perfect for tracking workouts like morning runs or yoga sessions, and it monitors your sleep without disrupting your rest. You won’t even feel it on your finger as it works.
This smart ring goes beyond basic fitness tracking by offering a holistic view of your well-being. With 24/7 heart rate, blood oxygen, and HRV monitoring, you get real-time data to spot trends and adjust your habits. The motion alert for steps and calories helps you stay active, and the app shows weekly progress without any subscription fees.
Practical features make it easy to use daily. The battery lasts up to 5 days on a quick charge, and the included portable case extends usage for travel. Compatible with iPhone and Android, it syncs effortlessly to keep you informed. This gold ring is a discreet tool for anyone focused on health and convenience.
Features
- IP68 waterproof
- Heart rate monitoring
- Blood oxygen monitoring
- Sleep tracking
- Step tracking
- Multiple sport modes
- Long battery life up to 3-5 days
- Compatible with iPhone and Android
- No subscription fee
General specs
- Brand: FKGZJF
- Seller: Amazon
- ID: B0FBLB7TKY
- Size: 8
- Weight: 100
- Material: Metal
- Battery Life: 3–5 d
- Connectivity: Bluetooth
- Charging Time: 2
- Charging Method: Magnetic
- OS Compatibility: Android 4.4, iOS 8.4
- Water Resistance: IP68
- First listed by seller: 1/14/26
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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Shipping options
United States
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| Brand | FKGZJF | REWSX | REWSX | REWSX | Tiantianka | SORNBEO |
| Model | 7# | B0G2CZ7KZV | B0F8HMRF8Z | |||
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| Price | $59.98 | $56.98 | $56.98 | $59.98 | $59.98 | $32.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Feb 7, 2026 | Feb 7, 2026 | Feb 7, 2026 | Jan 16, 2026 | Feb 7, 2026 | Jan 21, 2026 |
| Size | 8 | 7 | 14 | 11 | 7 | 9 |
| Weight | 100 | 100 | 4 | 2 | ||
| Material | Metal | Titanium Alloy | Titanium Alloy | Titanium Alloy | ||
| Battery Life | 3–5 d | 3–5 d | 3–5 d | 3–5 d | 7–10 d | 3–5 d |
| Connectivity | Bluetooth | Bluetooth | Bluetooth | Bluetooth | Bluetooth | |
| Charging Time | 2 | 2 | 2 | 2 | 1, 2 | |
| Charging Method | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | |
| OS Compatibility | Android 4.4, iOS 8.4 | Android 5.0+, iOS 8+ | Android 4.4+, iOS 8.4+ | Android 4.4, iOS 8.4 | Android, iOS | Android 5.0+, iOS |
| Water Resistance | IP68 | IP68 | IP68 | IP68 | IP68 | IP68 |