Secofy Smart Fitness and Activity Ring: No subscription fees
This smart ring is for anyone who wants to track their health without wearing a bulky watch. It fits easily on your finger and works all day and night.
Unlike glossy trackers that show every fingerprint, this ring has a frosted finish with polished edges. It resists smudges and grease, so it always looks clean. The subtle shine on the edges adds a touch of style.
Sleep tracking is automatic. The ring detects deep, light, and interrupted sleep stages. You get daily, weekly, and monthly reports to help you improve your rest. During the day, it tracks your heart rate and HRV every 5 minutes without you tapping anything. For blood pressure, SpO2, and stress, just open the app for an on-demand reading. It also supports women's cycle tracking with notifications for periods and fertile windows.
Battery life lasts 3–5 days on a single 1.5-hour charge. The charging case gives you over 15 days total, perfect for trips. The ring is waterproof to 50 meters, so you can swim or shower with it. And there are no subscription fees – all features are free.
Features
- 3-5 day battery life
- Waterproof to 50 meters
- Automatic heart rate tracking every 5 minutes
- Precision sleep stage tracking
- On-demand SpO2, stress, blood pressure
- Women's cycle tracking
- Frosted finish with polished edges
- Works with iPhone and Android
- Size guide before ordering
- No subscription fees
General specs
- Brand: Secofy
- Seller: Amazon
- ID: B0FMHTYLCR
- Brand: Secofy
- Model: 7#
- Finish: Frosted with polished edges
- Sizing: Check size chart before ordering
- Materials: Frosted finish with polished edges
- Battery Life: 3-5 days per charge
- Hrv Tracking: Every 5 minutes
- Subscription: No subscription fee
- Charging Time: 1.5 hours
- Compatibility: iPhone, Android
- Step Tracking: Yes
- Sleep Tracking: Automatic (deep, light, interrupted sleep)
- Stress Tracking: On demand (stores last 7 readings)
- Calorie Tracking: Yes
- Water Resistance: 50 meters (164 ft)
- (Spo2) Blood Oxygen: On demand (stores last 7 readings)
- Heart Rate Tracking: Every 5 minutes
- Cycle Tracking Women's: Yes (with notifications)
- Case Runtime Total With: 15+ days
- Blood Pressure Monitoring: On demand (stores last 7 readings)
- First listed by seller: 5/20/26
If you are interested in more details, you can find full information on the seller's page.
Amazon live offers
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New, Used and Refurbished describe the item condition shown for that Amazon offer.
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Shipping options
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| Brand | Secofy | VAMOTRA | VAMOTRA | FKGZJF | ||
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| Price | $39.99 | $39.99 | $39.99 | $59.98 | $69.99 | $59.98 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | May 20, 2026 | Apr 17, 2026 | Apr 24, 2026 | Apr 29, 2026 | May 20, 2026 | May 20, 2026 |
| Battery Life | 3-5 days per charge | 4+ days (full charge) | 3-5 days (ring), 60 days (with charging case) | |||
| Subscription | No subscription fee | No Subscription Fee | No subscription fee | |||
| Compatibility | iPhone, Android | iPhone, Android | Android, iOS | iOS, Android | Android 4.4+, iOS 8.4+ | |
| Sleep Tracking | Automatic (deep, light, interrupted sleep) | Yes (deep sleep, light sleep, REM, wakeful periods) | Automatic, Deep sleep, Light sleep | |||
| Calorie Tracking | Yes | Yes | Automatic | |||
| Size | #6 | 7# | 09# | 6# (US size 6.5 approx) | ||
Smart Fitness and Activity Ring Gold No subscription fees
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